Lincoln Electric SVM175-A manual

SVM175-A July , 2007 Safety Depends on Y ou Lincoln arc welding and cutting equipment is designed and built with safety in mind. However , your overall safety can be in- creased by proper installation . . . and thoughtful operation on your part. DO NOT INST ALL, OPERA TE OR REP AIR THIS EQUIPMENT WITHOUT READING THIS MANUAL AND THE SAFETY PRECAUTIO[...]

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FOR ENGINE powered equipment. 1.a. T urn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running. ____________________________________________________ 1.b. Operate engines in open, well-ventilated areas or ven[...]

FUMES AND GASES can be dangerous. 5.a. Welding may produce fumes and gases hazardous to health. Avoid breathing these fumes and gases.When welding, keep your head out of the fume. Use enough ventilation and/or exhaust at the arc to keep fumes and gases away from the breathing zone. When welding with electrodes which require special ventilation such[...]

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FOR ELECTRICALL Y powered equipment. 8.a. T urn off input power using the disconnect switch at the fuse box before working on the equipment. 8.b. Install equipment in accordance with the U.S. National Electrical Code, all local codes and the manufacturer ʼs recomme[...]

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC PRÉCAUTIONS DE SÛRETÉ Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté specifiques qui parraissent dans ce manuel aussi bien que les précautions de sûreté générales suiv- antes: Sûreté Pour Soudage A L ?[...]

MASTER T ABLE OF CONTENTS FOR ALL SECTIONS v v RANGER 305D Page Safety .................................................................................................................................................i-iv Installation ....................................................................................................................[...]

T ABLE OF CONTENTS - INST ALLA TION SECTION - Section A-1 Section A-1 RANGER 305D Installation .............................................................................................................................Section A T echnical Specifications...............................................................................................[...]

LUBRICA TION EMISSIONS FUEL SYSTEM GOVERNOR Full Pressure Electric Fuel Pump (Code 10926, 1 1 121) or Mechanical Mechanical with Full Flow Filter Certified to EP A T ier I Fuel Pump (Code 1 1 188, 1 1275), Auto air bleed Governor system Electric shutoff solenoid Indirect fuel injector AIR CLEANER ENGINE IDLER MUFFLER ENGINE PROTECTION Low noise Muf[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INST ALLA TION A-3 A-3 RANGER 305D (1) Output rating in watts is equivalent to volt-amperes at unity power factor . Output voltage is within ± 10% at all loads up to rated capac[...]

INST ALLA TION A-4 A-4 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ST ORING 1. Store the machine in a cool, dry place when it is not in use. Protect it from dust and dirt. Keep it where it canʼt be accidentall[...]

INST ALLA TION A-5 A-5 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC VEHICLE MOUNTING Improperly mounted concentrated loads may cause unstable vehicle handling and tires or other components to fail. • Only tran[...]

PRE-OPERA TION ENGINE SERVICE READ the engine operating and maintenance instruc- tions supplied with this machine. • Keep hands away from the engine muffler or HOT engine parts. • Stop the engine and allow it to cool before fueling. • Do not smoke when fueling. • Fill the tank at a moderate rate and do not overfill. • Wipe up spilled fuel[...]

REMOTE CONTROL The RANGER 305D is equipped with both a 6-pin and a 14-pin Amphenol connector . The 6-pin connector is primarily used to connect a remote control device, such as a K857, or a TIG Amptrol, such as the K870 or K812. The 14-pin Amphenol connector is primarily used to directly connect a wire feeder , TIG module, or Spool Gun module contr[...]

INST ALLA TION A-8 A-8 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC NOTE : Long lengths of welding cable should not remain coiled or wrapped while welding. • Loose connections will cause the output terminals t[...]

INST ALLA TION A-9 A-9 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC 1. Install the double-pole, double-throw switch between the power company meter and the premis- es disconnect. Switch rating must be the same o[...]

INST ALLA TION A-10 A-10 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FIGURE A.2 CONNECTION OF RANGER 305D T O PREMISES WIRING W ARNING • Only a licensed, certified, trained electrician should install the mach[...]

Section B-1 Section B-1 RANGER 305D T ABLE OF CONTENTS - OPERA TION SECTION - Operation ...............................................................................................................................Section B Operating Instructions ......................................................................................................[...]

OPERA TION B-2 B-2 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC OPERA TING INSTRUCTIONS Read and understand this entire section before operat- ing your Ranger 305D. SAFETY INSTRUCTIONS Do not attempt to use this[...]

DESIGN FEA TURES • Single, full-range output control dial. • 4 welding modes: CC-stick, downhill stick welding on pipe, CV wire welding and T ouch-Start TIG TM (elimi- nates high frequency and tungsten contamination). • Output at welding terminals controlled by electronic contactor . Can be switched to “On”, or to “Remotely Controlled?[...]

OPERA TION B-4 B-4 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ENGINE CONTROLS (Figure B.1) 1. RUN.STOP SWITCH: RUN position energizes the engine prior to starting. STOP position stops the engine. 2. GLOW PLUG [...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC OPERA TION B-5 B-5 RANGER 305D CV -WIRE mode: In this mode, turning the ARC CONTROL clock wise from –10 (soft) to +10 (crisp) changes the arc from soft and washed-in to crisp a[...]

OPERA TION B-6 B-6 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ENGINE OPERA TION DO NOT RUN THE ENGINE A T EXCESSIVE SPEEDS. The maximum allowable high idle speed for the Ranger 305D is 3650 RPM, no load. Do NO[...]

B-7 B-7 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Tungsten Electrode DCEN (-) DCEP (+) Approximate Argon Gas Flow TIG TORCH Diameter in. (mm) Flow Rate C.F .H. ( l /min.) Nozzle Size 4, 5 1%, 2% Thoriated 1%,[...]

OPERA TION B-8 B-8 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TIG WELDING The T OUCH ST ART TIG setting of the MODE switch is for DC TIG (T ungsten Inert Gas) welding. T o initiate a weld, the OUT- PUT control[...]

OPERA TION B-9 B-9 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Permissible Auxiliary Current in -Amps @ 120 V AC* 240 V AC 40*, (42* Peak) 40, (42 Peak) 40* 30 40* 23 32 16 16 8 0 0 The 240 V AC receptacle can [...]

NOTES B-10 B-10 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC[...]

T ABLE OF CONTENTS - ACCESSORIES - Accessories ...........................................................................................................................Section C Options/Accessories ...................................................................................................................C-2 Field Installed Options .......[...]

ACCESSORIES C-2 C-2 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC OPTIONS / ACCESSORIES FIELD INST ALLED OPTIONS The following options/accessories are available for your Ranger 305D from your Lincoln distributor [...]

K18161 FULL KV A ADAPTER KIT Plugs into the 120/240V NEMA 14-0R receptacle on the casefront (which accepts 4-prongs plugs) and con- verts it to a NEMA 6-50R receptacle, (which accepts 3- prong plugs.) CONNECTION OF LINCOLN ELECTRIC WIRE FEEDERS ELECTRIC SHOCK can kill. . Do not operate with panels open. . Disconnect NEGA TIVE (-) BA TTERY LEAD befo[...]

CONNECTION OF THE LN-25 TO THE RANGER 305D “ACROSS THE ARC” (SEE FIGURE C.2.) 1. Shut the welder off. 2. Connect the electrode cable from the LN-25 to the “-” terminal of the welder . Connect the work cable to the “+” terminal of the welder . NOTE: Figure C.2 shows the electrode connected for negative polarity . T o change polarity , sh[...]

CONNECTION OF THE LN-25 TO THE RANGER 305D WITH 42 VOL T REMOTE OUTPUT CONTROL MODULE (SEE FIGURE C.3.) 1. Shut the welder off. 2. Connect the electrode cable from the K626-XX Input Cable Assembly to the “-” terminal of the welder and to the LN-25 Wire Feeder . Connect the work cable to the “+” terminal of the welder . NOTE: Figure C.3 show[...]

CONNECTION OF THE LN-25 TO THE RANGER 305D “ACROSS THE ARC” WITH K857 REMOTE CONTROL (SEE FIGURE C.4.) 1. Shut the welder off. 2. Connect the electrode cable from the LN-25 to the “-” terminal of the welder . Connect the work cable to the “+” terminal of the welder . NOTE: Welding cable must be sized for current and duty cycle of applic[...]

CONNECTION OF THE LN-7 TO THE RANGER 305D USING K584 CONTROL CABLE (SEE FIGURE C.5.) NOTE: If your LN-7 comes equipped with a K291 or K404 input cable, refer to CONNECTIONS OF THE LN-7 Using K867 UNIVERSAL ADAPTER, rather than this discussion, to connect your Ranger 305D for wire feed welding. 1. Shut the welder off. 2. Connect the electrode cable [...]

CONNECTION OF THE LN-8 TO THE RANGER 305D USING K595 CONTROL CABLE (SEE FIGURE C.6.) NOTE: If your LN-8 comes equipped with a K291 or K404 input cable, refer to CONNECTIONS OF THE LN-7 Using K867 UNIVERSAL ADAPTER, rather than this discussion, to connect your Ranger 305D for wire feed welding. 1. Shut the welder off. 2. Connect the electrode cable [...]

CONNECTION OF THE LN-742 TO THE RANGER 305D. (SEE FIGURE C.7.) 1. Shut the welder off. 2. Connect the electrode cable from the LN-742 to the “+” terminal of the welder . Connect the work cable to the “-” terminal of the welder . NOTE: Figure C.7 shows the electrode connected for positive polarity . T o change polarity , shut the welder off [...]

NOTES C-10 C-10 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC[...]

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Section D-1 Section D-1 RANGER 305D T ABLE OF CONTENTS -MAINTENANCE- Maintenance ..........................................................................................................................Section D Safety Precautions ..................................[...]

MAINTENANCE D-2 D-2 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SAFETY PRECAUTIONS • Have qualified personnel do all maintenance and troubleshooting work. • Turn the engine of f before working inside the ma[...]

MAINTENANCE D-3 D-3 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC T ABLE D.2 - KUBOT A D722 ENGINE MAINTENANCE SCHEDULE INTERV AL REQUIRED MAINTENANCE Daily Fill fuel tank Check oil level Check coolant level Chec[...]

MAINTENANCE D-4 D-4 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Engine Oil Change Drain the engine oil while the engine is warm to assure rapid and complete draining. It is rec- ommended that each time the oil [...]

MAINTENANCE D-5 D-5 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC S e r v ic e I ns t r u c t i o n s & I n s t a l l a t i o n T i p s For Engine Air Filter Rele ase the 1 Seal C arefu lly Unlatch and remove[...]

MAINTENANCE D-6 D-6 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Never use gasoline or low flash point solvents for cleaning the air cleaner element. A fire or explosion could result. Never run the engine withou[...]

FUEL SYSTEM SERVICE At the end of each day , refill the fuel tank to minimize moisture condensation and dirt contamination in the fuel line. Do not overfill; leave room for expansion Use only fresh, No. 2 grade DIESEL fuel. Do not use kerosene. See the Engine Operator ʼs Manual for instructions on replacing the fuel filter . BLEEDING THE FUEL SYST[...]

MAINTENANCE D-8 D-8 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC CLEANING THE BA TTER Y Keep the battery clean by wiping it with a damp cloth when dirty . If the terminals appear corroded, discon- nect the batte[...]

MAINTENANCE D-9 D-9 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC GFCI RECEPT ACLE TESTING AND RESETTING PROCEDURE The GFCI receptacle should be properly tested at least once every month or whenever it is tripped[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC MAINTENANCE D-10 D-10 RANGER 305D FIGURE D.1 – MAJOR COMPONENT LOCA TIONS 7 7 6 6 3 3 4 4 2 2 1 1 5 5 1. CASE FRONT ASSEMBL Y 2. CONTROL P ANEL ASSEMBL Y 3. ST A TOR & ROTO[...]

Theory of Operation..............................................................................................................Section E General Description ...................................................................................... ........................E-2 Battery , Engine, Rotor , Stator and Engine Protection .....................[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC GENERAL DESCRIPTION The Ranger 305D is a diesel engine-driven welding power source capable of producing 300 amps at 29VDC at a 100% duty cycle. The engine is coupled to a brush-t[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Engine Idle System Idle Switch Operation: When the engine is started it operates at high RPM. If the idle switch is in the high position the automat- ic idle system is inactive a[...]

THEOR Y OF OPERA TION E-4 E-4 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Generating Power Flashing: The battery supplies 12VDC power to the control PC board. When the engine protection light shuts off, the con[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC THEOR Y OF OPERA TION E-5 E-5 RANGER 305D FIGURE E.5 – WELD POWER & CONTROL W eld Power and Control Weld Power: Approximately 90VDC power , as described earlier under the h[...]

THEOR Y OF OPERA TION E-6 E-6 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Remote output control: The Weld control PC board automatically detects when a remote control potentiometer is connected to either of the[...]

CHOPPER TECHNOLOGY FUNDAMENT ALS The new era of welding machines such as the Ranger 305D employ a technology whereby a DC source is turned on and off (chopped up) at high speed, then smoothed through an inductor to control an arc. Hence the name “Chopper .” The biggest advantage of chopper technology is the high-speed control of the arc, simila[...]

E-8 RANGER 305D E-8 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FIGURE E.6 – IGBT OPERA TION PULSE WIDTH MODULA TION: The term PULSE WIDTH MODULA TION is used to describe how much time is devoted to conduction in the cyc[...]

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Section F-1 Section F-1 RANGER 305D T roubleshooting & Repair Section ................................................................................ Section F How to Use T roubleshooting Guide ...................................................................[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC HOW T O USE TROUBLESHOOTING GUIDE Service and repair should be performed by only Lincoln Electric Factory Trained Personnel. Unauthorized repairs performed on this equipment may [...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRIC SHOCK can kill. Have an electrician install and service this equipment. T urn the machine OFF before working on equipment. Do not touch electrically hot parts. Sometimes[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TR OUBLESHOO TING & REP AIR F-4 F-4 RANGER 305D If f or any reason you do not understand the test procedures or are unab le to perform the test/repairs safely , contact the L[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-5 F-5 RANGER 305D TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. If for any reason you do not understan[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-6 F-6 RANGER 305D If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely , contact the Linco[...]

The machine will weld, but the welding arc is “cold”. The engine runs normally and the auxiliary power is normal. (continued) 7. The weld cables may be coiled, or wrapped around metal reels or racks. This can cause exces- sive electrical inductance in the weld circuit. T ry welding after uncoiling the cables, or discon- nect the existing cables[...]

The machine welds, but it will not maintain a steady output. The arc may suddenly get hotter or colder . 1. This condition may be normal in the Downhill Pipe Mode. The Downhill Pipe Mode allows the arc current to increase and decrease slightly as the arc length changes. 2. Check that the electrode used is of good quality , dry , and free of contami[...]

F-9 F-9 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely , contact the Linco[...]

The machine seems to be lock ed into the “CC-STICK” mode of oper- ation. 1. Check the position of the WELD MOD E se le ct or swit ch . The s witch should cleanly snap into each mode position, and should not f eel gr itty or get hung-up between positions . 1. Check that plug P-7 is fully seat- ed int o the wel d con trol P C board sock et. See C[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-11 F-11 RANGER 305D If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely , contact the Lin[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-12 F-12 RANGER 305D TROUBLESHOOTING & REP AIR TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. If for any reason you do not underst[...]

TROUBLESHOOTING & REP AIR F-13 F-13 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely , contact the Lin[...]

The battery does not stay charged. 1. Check for loose, corroded, or faulty connections at the bat- tery . 2. Check for loose or damaged alternator drive belt. 3. The battery may be faulty . 1. Perform the ENGINE AL TER- NA TOR TEST . 2. There may be a defective com- ponent or fault wiring, causing a current draw when the run/stop switch is in “st[...]

The engine starts, but shuts down immediately when the start button is released. 1. Make sure the glow plug button is pressed while pushing the start button, and held in until the engine protection light turns off, (5 SECONDS MAXIMUM AFTER THE ENGINE ST ARTS) See the operator ʼs manual, or the operation section of this manual for the proper starti[...]

TR OUBLESHOO TING & REP AIR F-16 F-16 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC If f or any reason you do not understand the test procedures or are unab le to perform the test/repairs safely , contact the[...]

TROUBLESHOOTING & REP AIR F-17 F-17 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely , contact the Lin[...]

F-18 F-18 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely , contact the Lin[...]

TROUBLESHOOTING & REP AIR F-19 F-19 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely , contact the Lin[...]

INST ALLA TION F-20 F-20 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely , contact the Lincoln Electric S[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-21 F-21 RANGER 305D CASE COVER REMOV AL AND REPLACEMENT PROCEDURE W ARNING Service and repair should be performed by only Lincoln Electric factory[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-22 F-22 RANGER 305D HINGES RANGER 305D ENGINE ACCESS DOOR SERVICE LOCKING TAB FIGURE F .1 – DOOR REMOV AL CASE COVER REMOV AL AND REPLACEMENT PR[...]

TROUBLESHOOTING & REP AIR F-23 F-23 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC W ARNING CHOPPER MODULE CAP ACIT OR DISCHARGE PROCEDURE Service and repair should be performed by only Lincoln Electric factor[...]

TROUBLESHOOTING & REP AIR F-24 F-24 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC CHOPPER MODULE CAP ACIT OR DISCHARGE PROCEDURE (continued) FIGURE F .2 – CHOPPER MODULE CAP ACITOR TERMINAL DISCHARGE INSULA[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-25 F-25 RANGER 305D W ARNING FUEL SHUTDOWN SOLENOID TEST Service and repair should be performed by only Lincoln Electric factory trained personnel[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-26 F-26 RANGER 305D FUEL SHUTDOWN SOLENOID TEST (continued) FIGURE F .3 – FUEL SHUTDOWN SOLENOID LOCA TION TEST PROCEDURE 1. T urn the engine of[...]

TROUBLESHOOTING & REP AIR F-27 F-27 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FUEL SHUTDOWN SOLENOID TEST (continued) FIGURE F .4 – FUEL SOLENOID CONNECTIONS RED BLACK WHITE GND-L TO FRAME 225B TO "[...]

NOTES F-28 F-28 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-29 F-29 RANGER 305D W ARNING ENGINE THROTTLE ADJUSTMENT TEST Service and repair should be performed by only Lincoln Electric factory trained perso[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-30 F-30 RANGER 305D ENGINE THROTTLE ADJUSTMENT TEST (continued) FIGURE F .5 – STROBE MARK LOCA TION STROBE TACH MARK FAN HUB ENGINE SPEED CONTRO[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-31 F-31 RANGER 305D ENGINE THROTTLE ADJUSTMENT TEST (continued) FIGURE F .6 – SOLENOID Frequency Counter Method NOTE: A dedicated frequency coun[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-32 F-32 RANGER 305D ENGINE THROTTLE ADJUSTMENT TEST (continued) Vibratach Method A Vibratach is used to measure the vibrations caused by the runni[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-33 F-33 RANGER 305D W ARNING IDLER SOLENOID TEST Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauth[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-34 F-34 RANGER 305D IDLER SOLENOID TEST (continued) FIGURE F .7 – PLUG(S) PIN LOCA TION TEST PROCEDURE 1. T urn the engine off. 2. Open the righ[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-35 F-35 RANGER 305D W ARNING ENGINE AL TERNA TOR TEST Service and repair should be performed by only Lincoln Electric factory trained personnel. U[...]

TROUBLESHOOTING & REP AIR F-36 F-36 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ENGINE AL TERNA TOR TEST (continued) FIGURE F .8 – LEAD LOCAIONS OIL PRESSURE SWITCH BA TTERY IGNITION 209 210 TEST PROCEDUR[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-37 F-37 RANGER 305D W ARNING BRUSH AND SLIP RING SER VICE PROCEDURE Service and repair should be performed by only Lincoln Electric factory traine[...]

TROUBLESHOOTING & REP AIR F-38 F-38 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC BRUSH AND SLIP RING SER VICE PROCEDURE (continued) TEST PROCEDURE 1. Perform the Case Cover Removal Procedure 2. Examine brush[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-39 F-39 RANGER 305D W ARNING ROT OR RESIST ANCE AND GROUND TEST (ST A TIC) Service and repair should be performed by only Lincoln Electric factory[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-40 F-40 RANGER 305D ROT OR RESIST ANCE AND GROUND TEST (ST A TIC) (continued) FIGURE F .9 – ROTOR BRUSH LEADS SLIP RINGS BRUSHES  LEADS 201 5[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-41 F-41 RANGER 305D W ARNING ROT OR RESIST ANCE AND GROUND TEST (DYNAMIC) (Also referred to as flying resistance test) Service and repair should b[...]

TROUBLESHOOTING & REP AIR F-42 F-42 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ROT OR RESIST ANCE AND GROUND TEST (DYNAMIC) (continued) TEST PROCEDURE This test requires that the brushes and slip rings are[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-43 F-43 RANGER 305D W ARNING ROT OR VOL T AGE TEST Service and repair should be performed by only Lincoln Electric factory trained personnel. Unau[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-44 F-44 RANGER 305D ROT OR VOL T AGE TEST (continued) FIGURE F .10 – LEAD LOCA TIONS SLIP RINGS BRUSHES  LEADS 201 5H + - LEADS 200A 200 TEST[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-45 F-45 RANGER 305D ROT OR VOL T AGE TEST (continued) 10. If the meter reading indicates battery voltage, about 12 to 14 VDC , the rotor may be op[...]

NOTES F-46 F-46 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-47 F-47 RANGER 305D W ARNING FLASHING VOL T AGE TEST (Engine Not Running) Service and repair should be performed by only Lincoln Electric factory [...]

TROUBLESHOOTING & REP AIR F-48 F-48 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FLASHING VOL T AGE TEST (continued) TEST PROCEDURE 1. Perform the Case Cover Removal Procedure . 2. Make sure that the battery[...]

TROUBLESHOOTING & REP AIR F-49 F-49 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FLASHING VOL T AGE TEST (continued) FIGURE F .1 1 – EXCITER LEADS T1, T2, T3 ENGINE AL TERN AT O R OIL FIL TER OIL PRESSURE [...]

NOTES F-50 F-50 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-51 F-51 RANGER 305D W ARNING ST A TOR VOL T AGE TESTS Service and repair should be performed by only Lincoln Electric factory trained personnel. U[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-52 F-52 RANGER 305D ST A TOR VOL T AGE TESTS (continued) FIGURE F .12 – RECEPT ACLE LEAD LOCA TIONS (TYPICAL) AMPHENOL 1 KEY E C D A B L K J M N[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-53 F-53 RANGER 305D ST A TOR VOL T AGE TESTS (continued) FIGURE F .13 – RECTIFIER BRIDGE DET AIL POS. NEG. W3 W2 W1 W4,W5 W10 W6,W1 1 FROM SHUNT[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-54 F-54 RANGER 305D ST A TOR VOL T AGE TESTS (continued) T o test the 42 V AC wire feeder winding: 1. Connect the voltmeter probes to pins “I”[...]

TROUBLESHOOTING & REP AIR F-55 F-55 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC W ARNING ST A TOR SHORT CIRCUIT & GROUND TEST Service and repair should be performed by only Lincoln Electric factory trai[...]

TROUBLESHOOTING & REP AIR F-56 F-56 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ST A TOR SHORT CIRCUIT & GROUND TEST (continued) FIGURE F .14 – WELD CONTROL BOARD AMPHENOL 1 KEY E C D A B L K J M N F [...]

TROUBLESHOOTING & REP AIR F-57 F-57 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC W ARNING OUTPUT RECTIFIER BRIDGE TEST Service and repair should be performed by only Lincoln Electric factory trained personne[...]

TROUBLESHOOTING & REP AIR F-58 F-58 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC OUTPUT RECTIFIER BRIDGE TEST (continued) FIGURE F .15 X1 DC+ DC- D5 D6 D3 D4 D1 D2 AC3 AC2 AC1 TEST PROCEDURE 1. T urn the eng[...]

TROUBLESHOOTING & REP AIR F-59 F-59 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC OUTPUT RECTIFIER BRIDGE TEST (continued) W1 W2 W3 OUTPUT RECTIFIER BRIDGE TOP CENTER BOTTOM CHOKE POS. NEG. W3 W2 W1 W4,W5 W10[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-60 F-60 RANGER 305D (+) Lead (-) Lead Diode Bias and Expected T est Result AC1 DC(+) FORW ARD BIAS (Low Resistance) AC2 DC(+) FORW ARD BIAS (Low R[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-61 F-61 RANGER 305D W ARNING CHOPPER MODULE FUNCTION TEST Service and repair should be performed by only Lincoln Electric factory trained personne[...]

TROUBLESHOOTING & REP AIR F-62 F-62 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC CHOPPER MODULE FUNCTION TEST (continued) FIGURE F .17 – POWER MODULE CONNECTIONS TEST PROCEDURE 1. Perform the Case Cover Re[...]

TROUBLESHOOTING & REP AIR F-63 F-63 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC CHOPPER MODULE FUNCTION TEST (continued) TEST PROCEDURE (CONTINUED) 13. If about 58 VDC is present at chopper mod- ule termina[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC NOTES F-64 F-64 RANGER 305D[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-65 F-65 RANGER 305D W ARNING CHOPPER MODULE RESIST ANCE TEST Service and repair should be performed by only Lincoln Electric factory trained perso[...]

TROUBLESHOOTING & REP AIR F-66 F-66 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC CHOPPER MODULE RESIST ANCE TEST (continued) TEST PROCEDURE 1. Perform the Case Cover Removal Procedure . 2. Perform the Capaci[...]

TROUBLESHOOTING & REP AIR F-67 F-67 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC CHOPPER MODULE RESIST ANCE TEST (continued) (+) Lead (-) Lead Diode Bias and Expected T est Result B5 B6 6K to 9K B6 B5 6K to [...]

NOTES F-68 F-68 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-69 F-69 RANGER 305D W ARNING WELD CONTROL BOARD PWM GA TE SIGNAL TEST Service and repair should be performed by only Lincoln Electric factory trai[...]

TROUBLESHOOTING & REP AIR F-70 F-70 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC WELD CONTROL BOARD PWM GA TE SIGNAL TEST (contin ued) TEST PROCEDURE 1. Perform the Case Cover Removal Procedure . 2. Unplug a[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-71 F-71 RANGER 305D W ARNING WELD CONTROL FEEDBACK TEST Service and repair should be performed by only Lincoln Electric factory trained personnel.[...]

TROUBLESHOOTING & REP AIR F-72 F-72 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC WELD CONTROL FEEDBACK TEST (continued) TEST PROCEDURE 1. Place the idle switch in the “HIGH IDLE” position. 2. Place the m[...]

TROUBLESHOOTING & REP AIR F-73 F-73 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC WELD CONTROL FEEDBACK TEST (continued) 16. If the voltage readings are different, check the wiring and connections between the[...]

NOTES F-74 F-74 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-75 F-75 RANGER 305D W ARNING CONTROL POTENTIOMETER AND MODE SWITCH RESIS- T ANCE TEST Service and repair should be performed by only Lincoln Elect[...]

TROUBLESHOOTING & REP AIR F-76 F-76 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC CONTROL POTENTIOMETER AND MODE SWITCH RESIST ANCE TEST (continued) TEST PROCEDURE 1. T urn the engine off 2. Perform the Case [...]

TROUBLESHOOTING & REP AIR F-77 F-77 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC CONTROL POTENTIO METER AND MODE SWITCH RESIST ANCE TEST (continued) T ABLE F .3 CC-STICK P7-9 (#214) T O P7-14 (#218) 500K or [...]

NOTES F-78 F-78 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-79 F-79 RANGER 305D W ARNING REMOTE RECEPT ACLE RESIST ANCE TEST Service and repair should be performed by only Lincoln Electric factory trained p[...]

TROUBLESHOOTING & REP AIR F-80 F-80 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC REMOTE RECEPT ACLE RESIST ANCE TEST (continued) FIGURE F .18 AMPHENOL 1 E C D A B L K J M N F G H I TEST PROCEDURE 1. T urn th[...]

TROUBLESHOOTING & REP AIR F-81 F-81 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC REMOTE RECEPT ACLE RESIST ANCE TEST (continued) T ABLE - F .4 N/A PIN “G” (#75B) to PIN “Å” (#32) 500K or Higher N/A [...]

NOTES F-82 F-82 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-83 F-83 RANGER 305D W ARNING OUTPUT RECTIFIER BRIDGE AND CHOKE REMOV AL AND REPLACEMENT Service and repair should be performed by only Lincoln Ele[...]

TROUBLESHOOTING & REP AIR F-84 F-84 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC OUTPUT RECTIFIER BRIDGE AND CHOKE REMOV AL AND REPLACE- MENT (continued) REMOV AL PROCEDURE 1. T urn the engine off. 2. Remove[...]

TROUBLESHOOTING & REP AIR F-85 F-85 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC OUTPUT RECTIFIER BRIDGE AND CHOKE REMOV AL AND REPLACE- MENT (continued) Replacing the Output Rectifier 1. Place the Output Re[...]

NOTES F-86 F-86 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-87 F-87 RANGER 305D W ARNING CHOPPER MODULE REMOV AL AND REPLACEMENT Service and repair should be performed by only Lincoln Electric factory train[...]

TROUBLESHOOTING & REP AIR F-88 F-88 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC CHOPPER MODULE REMOV AL AND REPLACEMENT (continued) FIGURE F .19 – EXCITER LEADS T1, T2, T3 B1 B2 B3 B4 B5 B6 SL302 SL301 SL[...]

TROUBLESHOOTING & REP AIR F-89 F-89 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC CHOPPER MODULE REMOV AL AND REPLACEMENT (continued) Replacement 1. Mount the heat sink to the brackets on the vertical baffle [...]

NOTES F-90 F-90 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-91 F-91 RANGER 305D W ARNING ST A TOR/ROT OR REMOV AL AND REPLACEMENT Service and repair should be performed by only Lincoln Electric factory trai[...]

TROUBLESHOOTING & REP AIR F-92 F-92 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ST A TOR/ROT OR REMOV AL AND REPLACEMENT (continued) FIGURE F .20 – BA TTER Y PLACEMENT Battery Terminals Remove Through Her[...]

TROUBLESHOOTING & REP AIR F-93 F-93 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ST A TOR/ROT OR REMOV AL AND REPLACEMENT (continued) FIGURE F .21 – WIRE GUIDE HOLE HOLE FIGURE F .22 – AL TERNA TOR LEADS[...]

TROUBLESHOOTING & REP AIR F-94 F-94 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ST A TOR/ROT OR REMOV AL AND REPLACEMENT (continued) 19. The wires connected to the solenoid side of the engine can remain att[...]

Removing the Rotor 1. Use the hoist and lifting straps to support the rotor assembly . 2. Remove the screws and disc clamping bars from the rotor coupling disc, and remove the rotor . NOTE: earlier machines used three 0.31” thick clamping bars and later models use six 0.14” thick camping bars arranged in three sets of two bars each. 3. If the r[...]

TROUBLESHOOTING & REP AIR F-96 F-96 RANGER 305D Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ST A TOR/ROT OR REMOV AL AND REPLACEMENT (continued) Replacing the Stator 1. Examine the stator frame assembly . Be sure the w[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-97 F-97 RANGER 305D This is the typical auxiliary output voltage generated from a properly operating machine. Note that each vertical division rep[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-98 F-98 RANGER 305D This is the typical DC open circuit out- put voltage generated from a properly operating machine. Note that each vertical divi[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-99 F-99 RANGER 305D This is the typical DC output voltage generated from a properly operating machine. Note that each vertical divi- sion represen[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-100 F-100 RANGER 305D This is the typical DC open circuit out- put voltage generated from a properly operating machine. Note that each vertical di[...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-101 F-101 RANGER 305D This is the typical DC voltage gener- ated from a properly operating machine. Note that each vertical divi- sion represents [...]

RETEST AFTER REP AIR Retest a machine: • If it is rejected under test for any reason that requires you to remove any mechanical part which could affect the machineʼs electrical characteristics. OR • If you repair or replace any electrical components. ENGINE OUTPUT Mode No Load RPM Load RPM Low Idle 2400 - 2500 N/A High Idle 3625 - 3675 3350 - [...]

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Section G-1 Section G-1 T ABLE OF CONTENTS - ELECTRICAL DIAGRAMS SECTION - RANGER 305D Electrical Diagrams .............................................................................................................. Section G Wiring Diagram - Entire Machine - Code[...]

ELECTRICAL DIAGRAMS G-2 RANGER 305D WIRING DIAGRAM - ENTIRE MACHINE - CODE 10926 (G4250) CONTAC TOR CONTR OL SHOWN IN "WELDING ON" POSITION WIRE FEED POWER W INDING 42 VAC C11 C10 42 VAC FIELD WINDING GND. SCREW ON LEFT INSIDE CASEFRONT D3 ARC CONTROL 10K ALL CASE FRONT COMPONE NTS SHOWN VIEWED FROM REAR. 42 W3 CB7 15A S1 9 7 W1 STATOR WE[...]

ELECTRICAL DIAGRAMS G-3 RANGER 305D WIRING DIAGRAM - ENTIRE MACHINE - CODES 1 1 121 (G4571) CONTACTOR CONTROL SHOWN IN "WELDING ON" POSITION WIRE FEED POWER WINDING 42 VAC C11 C10 D3 ARC CONTROL ALL CASE FRONT COMPONENTS SHOWN VIEWED FROM REAR. 42 W3 CB7 15A S1 W1 STATOR WELD WINDINGS W3 W2 75 R1 76 77 278 CCW OUTPUT CONT. POT S3 2 GND-G [...]

ELECTRICAL DIAGRAMS G-4 RANGER 305D WIRING DIAGRAM - ENTIRE MACHINE - CODES 1 1 188, 1 1275 (G4571-1) CONTACTOR CONTROL SHOWN IN "WELDING ON" POSITION WIRE FE ED PO WER WINDING 42 VAC C1 1 C 10 D3 ARC CONTRO L ALL CAS E FRONT COMPONENT S SHO WN VI EWED FROM REAR. 42 W3 CB7 15A S1 W1 STATOR WELD WINDINGS W3 W2 75 R1 76 77 278 CCW OUTPUT CO[...]

ELECTRICAL DIAGRAMS G-5 RANGER 305D WIRING DIAGRAM - ENTIRE MACHINE - CODES 1 1027 (G4226) CONTAC TOR CONTR OL SHOWN IN "WELDING ON" POSITION WIRE FEED POWER W INDING 42 VAC C11 C10 42 VAC STATOR EXCITATION WINDING GND. SCREW ON LEFT INSIDE CASEFRONT D3 ARC CONTROL 10K ALL CASE FRONT COMPONE NTS SHOWN VIEWED FROM REAR. 42 W3 CB7 15A S1 9 [...]

ELECTRICAL DIAGRAMS G-6 RANGER 305D WIRING DIAGRAM - ENTIRE MACHINE - CODES 1 1 122 (G4572) CONTAC TOR CONTR OL SHOWN IN "WELDING ON" POSITION WIRE FEED POWER W INDING 42 VAC C11 C10 42 VAC STATOR EXCITATION WINDING GND. SCREW ON LEFT INSIDE CASEFRONT D3 ARC CONTROL 10K ALL CASE FRONT COMPONE NTS SHOWN VIEWED FROM REAR. 42 W3 CB7 15A S1 9[...]

ELECTRICAL DIAGRAMS G-7 RANGER 305D WIRING DIAGRAM - ENTIRE MACHINE - CODES 1 1 189, 1 1314 (G4572-1) CONTACTOR CONTROL SHOWN I N "WELDI NG ON" POSITION WIRE FEED POWER WINDING 42 VAC C 11 C10 42 VAC STATOR EXCITATION WINDING D3 ARC CONTROL ALL CASE FRONT COMPONENTS SHOWN VIEWED F ROM REAR. 42 W3 CB7 15A S1 9 7 W1 S TATOR W ELD W INDINGS [...]

ELECTRICAL DIAGRAMS G-8 RANGER 305D WIRING DIAGRAM - ENTIRE MACHINE - CODES 1 1039 (G4409) CONTAC TOR CONTR OL SHOWN IN "WELDING ON" POSITION WIRE FEED POWER W INDING 42 VAC C11 C10 42 VAC STATOR EXCITATION WINDING GND. SCREW ON LEFT INSIDE CASEFRONT D3 ARC CONTROL 10K ALL CASE FRONT COMPONE NTS SHOWN VIEWED FROM REAR. 42 W3 CB7 15A S1 9 [...]

ELECTRICAL DIAGRAMS G-9 RANGER 305D WIRING DIAGRAM - ENTIRE MACHINE - CODES 1 1 123 (G4573) CONTACTOR CONTROL SHOWN I N "WELDI NG ON" POSITION WIRE FEED POWER WINDING 42 VAC C 11 C10 42 VAC STATOR EXCITATION WINDING D3 ARC CONTROL ALL CASE FRONT COMPONENTS SHOWN VIEWED F ROM REAR. 42 CB7 15A S1 9 7 W1 S TATOR W ELD W INDINGS W3 W2 75 R1 7[...]

ELECTRICAL DIAGRAMS G-10 RANGER 305D WIRING DIAGRAM - ENTIRE MACHINE - CODES 1 1 190, 1 1315 (G4573-1) CONTACTOR CONTROL SHOWN I N "WELDI NG ON" POSITION WIRE FEED POWER WINDING 42 VAC C 11 C10 42 VAC STATOR EXCITATION WINDING D3 ARC CONTROL ALL CASE FRONT COMPONENTS SHOWN VIEWED F ROM REAR. 42 CB7 15A S1 9 7 W1 S TATOR W ELD W INDINGS W3[...]

ELECTRICAL DIAGRAMS G-11 RANGER 305D SCHEMA TIC - ENTIRE MACHINE - CODE 10926 (L1 1946) P AGE 1 OF 2 EN-1 68 S O L ID E D G E L11946 RANGER 30 5D MACHINE SCHEMATIC NO NE L119 43 BAM BAM - UNLE SS OTHER WISE SPEC IFIED TOL ERANC E MA NUF ACTU RING T OLER ANCE PER E 2056 ON 2 PLACE D ECIMALS IS ± .02 ON 3 PLACE DECIMALS IS ± .002 ON ALL ANGL ES IS [...]

ELECTRICAL DIAGRAMS G-12 RANGER 305D SCHEMA TIC - ENTIRE MACHINE - CODE 10926 (L1 1946) P AGE 2 OF 2 EN-1 68 S O L ID E D G E L11946 RANGER 30 5D MACHINE SCHEMATIC NO NE L119 43 BAM BAM - UNLE SS OTHER WISE SPEC IFIED TOL ERANC E MA NUF ACTU RING T OLER ANCE PER E 2056 ON 2 PLACE D ECIMALS IS ± .02 ON 3 PLACE DECIMALS IS ± .002 ON ALL ANGL ES IS [...]

Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS RANGER 305D SCHEMA TIC - ENTIRE MACHINE - CODE 1 1 121 (L12212) P AGE 1 OF 2 EN -168 S O L ID E D G E L12212 RANGER 30 5D MACHINE SCHEMATIC NONE L119 46 DEO B[...]

ELECTRICAL DIAGRAMS G-14 RANGER 305D SCHEMA TIC - ENTIRE MACHINE - CODE 1 1 121 (L12212) P AGE 2 OF 2 EN -168 S O L ID E D G E L12212 RANGER 3 0 5 D MACH I NE SCHEMATI C NONE L119 46 DEO BAM - U NLESS OTHERW ISE SPEC IF IE D TOLERAN CE MANUFAC TURIN G TOLERANCE PER E205 6 ON 2 PLAC E DECIMA L S IS ± .02 ON 3 P LAC E D E C IMALS IS ± .002 ON ALL A[...]

ELECTRICAL DIAGRAMS G-15 RANGER 305D SCHEMA TIC - ENTIRE MACHINE - CODES 1 1 188, 1 1275 (L12212-1) P AGE 1 OF 2 EN -168 S O L ID E D G E L12212-1 RANGER 30 5D MACHINE SCHEMATIC NONE L122 12 MAP BAM - U NLESS OTHERW ISE SPEC IF IE D TOLERAN CE MANUFAC TURIN G TOLERANCE PER E205 6 ON 2 PLAC E DECIMA L S IS ± .02 ON 3 P LAC E D E C IMALS IS ± .002 [...]

ELECTRICAL DIAGRAMS G-16 RANGER 305D SCHEMA TIC - ENTIRE MACHINE - CODES 1 1 188, 1 1275 (L12212-1) P AGE 2 OF 2 EN -168 S O L ID E D G E L12212-1 RANGER 3 0 5 D MACH I NE SCHEMATI C NONE L122 12 MAP BAM - U NLESS OTHERW ISE SPEC IF IE D TOLERAN CE MANUFAC TURIN G TOLERANCE PER E205 6 ON 2 PLAC E DECIMA L S IS ± .02 ON 3 P LAC E D E C IMALS IS ± [...]

ELECTRICAL DIAGRAMS G-17 RANGER 305D SCHEMA TIC - ENTIRE MACHINE - CODE 1 1027 (L12039) P AGE 1 OF 2 EN-1 68 S O L ID E D G E L12039 RANGER 3 05 D CE ( UK) MACHINE SCHEMATIC NO NE L119 46 MAP BAM - UNLE SS OTHER WISE SPEC IFIED TOL ERANC E MA NUF ACTU RING T OLER ANCE PER E 2056 ON 2 PLACE D ECIMALS IS ± .02 ON 3 PLACE DECIMALS IS ± .002 ON ALL A[...]

ELECTRICAL DIAGRAMS G-18 RANGER 305D SCHEMA TIC - ENTIRE MACHINE - CODE 1 1027 (L12039) P AGE 2 OF 2 EN-1 68 S O L ID E D G E L12039 RANGER 3 05 D CE ( UK) MACHINE SCHEMATIC NO NE L119 46 MAP BAM - UNLE SS OTHER WISE SPEC IFIED TOL ERANC E MA NUF ACTU RING T OLER ANCE PER E 2056 ON 2 PLACE D ECIMALS IS ± .02 ON 3 PLACE DECIMALS IS ± .002 ON ALL A[...]

ELECTRICAL DIAGRAMS G-19 RANGER 305D SCHEMA TIC - ENTIRE MACHINE - CODE 1 1 122 (L12213) P AGE 1 OF 2 EN -168 S O L ID E D G E L12213 RANGER 3 05 D CE ( UK) MACHINE SCHEMATIC NONE L120 39 DEO BAM - U NLESS OTHERW ISE SPEC IF IE D TOLERAN CE MANUFAC TURIN G TOLERANCE PER E205 6 ON 2 PLAC E DECIMA L S IS ± .02 ON 3 P LAC E D E C IMALS IS ± .002 ON [...]

ELECTRICAL DIAGRAMS G-20 RANGER 305D SCHEMA TIC - ENTIRE MACHINE - CODE 1 1 122 (L12213) P AGE 2 OF 2 EN -168 S O L ID E D G E L12213 RANGER 3 0 5 D CE ( UK) MACH I NE SCHEMATI C NONE L120 39 DEO BAM - U NLESS OTHERW ISE SPEC IF IE D TOLERAN CE MANUFAC TURIN G TOLERANCE PER E205 6 ON 2 PLAC E DECIMA L S IS ± .02 ON 3 P LAC E D E C IMALS IS ± .002[...]

ELECTRICAL DIAGRAMS G-21 RANGER 305D SCHEMA TIC - ENTIRE MACHINE - CODES 1 1 189, 1 1314 (L12213-1) P AGE 1 OF 2 EN -168 S O L ID E D G E L12213-1 RANGER 3 05 D CE ( UK) MACHINE SCHEMATIC NONE L122 13 MAP BAM - U NLESS OTHERW ISE SPEC IF IE D TOLERAN CE MANUFAC TURIN G TOLERANCE PER E205 6 ON 2 PLAC E DECIMA L S IS ± .02 ON 3 P LAC E D E C IMALS I[...]

ELECTRICAL DIAGRAMS G-22 RANGER 305D SCHEMA TIC - ENTIRE MACHINE - CODES 1 1 189, 1 1314 (L12213-1) P AGE 2 OF 2 EN -168 S O L ID E D G E L12213-1 RANGER 3 0 5 D CE ( UK) MACH I NE SCHEMATI C NONE L122 13 MAP BAM - U NLESS OTHERW ISE SPEC IF IE D TOLERAN CE MANUFAC TURIN G TOLERANCE PER E205 6 ON 2 PLAC E DECIMA L S IS ± .02 ON 3 P LAC E D E C IMA[...]

ELECTRICAL DIAGRAMS G-23 RANGER 305D SCHEMA TIC - ENTIRE MACHINE - CODE 1 1039 (L12038) P AGE 1 OF 2 EN-1 68 S O L ID E D G E L12039 RANGER 3 05 D CE ( UK) MACHINE SCHEMATIC NO NE L119 46 MAP BAM - UNLE SS OTHER WISE SPEC IFIED TOL ERANC E MA NUF ACTU RING T OLER ANCE PER E 2056 ON 2 PLACE D ECIMALS IS ± .02 ON 3 PLACE DECIMALS IS ± .002 ON ALL A[...]

ELECTRICAL DIAGRAMS G-24 RANGER 305D SCHEMA TIC - ENTIRE MACHINE - CODE 1 1039 (L12038) P AGE 2 OF 2 EN-1 68 S O L ID E D G E L12039 RANGER 3 05 D CE ( UK) MACHINE SCHEMATIC NO NE L119 46 MAP BAM - UNLE SS OTHER WISE SPEC IFIED TOL ERANC E MA NUF ACTU RING T OLER ANCE PER E 2056 ON 2 PLACE D ECIMALS IS ± .02 ON 3 PLACE DECIMALS IS ± .002 ON ALL A[...]

ELECTRICAL DIAGRAMS G-25 RANGER 305D SCHEMA TIC - ENTIRE MACHINE - CODE 1 1 123 (L12214) P AGE 1 OF 2 EN -168 S O L ID E D G E L12214 RANGER 3 05 D CE ( EUROPE) MACHINE SCHEMATIC NONE L120 38 DEO BAM - U NLESS OTHERW ISE SPEC IF IE D TOLERAN CE MANUFAC TURIN G TOLERANCE PER E205 6 ON 2 PLAC E DECIMA L S IS ± .02 ON 3 P LAC E D E C IMALS IS ± .002[...]

ELECTRICAL DIAGRAMS G-26 RANGER 305D SCHEMA TIC - ENTIRE MACHINE - CODE 1 1 123 (L12214) P AGE 2 OF 2 EN -168 S O L ID E D G E L12214 RANGER 3 0 5 D CE ( EUROPE) MACH I NE SCHEMATI C NONE L120 38 DEO BAM - U NLESS OTHERW ISE SPEC IF IE D TOLERAN CE MANUFAC TURIN G TOLERANCE PER E205 6 ON 2 PLAC E DECIMA L S IS ± .02 ON 3 P LAC E D E C IMALS IS ± [...]

ELECTRICAL DIAGRAMS G-27 RANGER 305D SCHEMA TIC - ENTIRE MACHINE - CODES 1 1 190, 1 1315 (L12214-1) P AGE 1 OF 2 EN -168 S O L ID E D G E L12214-1 RANGER 3 05 D CE ( EUROPE) MACHINE SCHEMATIC NONE L122 14-1 MAP BAM - U NLESS OTHERW ISE SPEC IF IE D TOLERAN CE MANUFAC TURIN G TOLERANCE PER E205 6 ON 2 PLAC E DECIMA L S IS ± .02 ON 3 P LAC E D E C I[...]

ELECTRICAL DIAGRAMS G-28 RANGER 305D SCHEMA TIC - ENTIRE MACHINE - CODES 1 1 190, 1 1315 (L12214-1) P AGE 2 OF 2 EN -168 S O L ID E D G E L12214-1 RANGER 3 0 5 D CE ( EUROPE) MACH I NE SCHEMATI C NONE L122 14-1 MAP BAM - U NLESS OTHERW ISE SPEC IF IE D TOLERAN CE MANUFAC TURIN G TOLERANCE PER E205 6 ON 2 PLAC E DECIMA L S IS ± .02 ON 3 P LAC E D E[...]

ELECTRICAL DIAGRAMS G-29 RANGER 305D SCHEMA TIC - WELD CONTROL PC BD - ALL CODES (G4108-1) PG 1 OF 5 G-29 NOTE: This diagram is for reference only . It may not be accurate for all machines covered by this manual. Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return [...]

ELECTRICAL DIAGRAMS G-30 RANGER 305D SCHEMA TIC - WELD CONTROL PC BD - ALL CODES (G4108-1) PG 2 OF 5 G-30 NOTE: This diagram is for reference only . It may not be accurate for all machines covered by this manual. Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return [...]

ELECTRICAL DIAGRAMS G-31 RANGER 305D SCHEMA TIC - WELD CONTROL PC BD - ALL CODES (G4108-1) PG 3 OF 5 G-31 NOTE: This diagram is for reference only . It may not be accurate for all machines covered by this manual. Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return [...]

ELECTRICAL DIAGRAMS G-32 RANGER 305D SCHEMA TIC - WELD CONTROL PC BD - ALL CODES (G4108-1) PG 4 OF 5 G-32 NOTE: This diagram is for reference only . It may not be accurate for all machines covered by this manual. Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return [...]

ELECTRICAL DIAGRAMS G-33 RANGER 305D SCHEMA TIC - WELD CONTROL PC BD - ALL CODES (G4108-1) PG 5 OF 5 G-33 NOTE: This diagram is for reference only . It may not be accurate for all machines covered by this manual. Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return [...]

NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty . Individual Printed Circuit Board Components are not available from Lincoln Electric. This information is pro- vided for reference only . Lincoln Electric discourages board level troub[...]

ELECTRICAL DIAGRAMS G-35 RANGER 305D SCHEMA TIC - PULL COIL PC BD - ALL CODES (G41 17-1) G-35 NOTE: This diagram is for reference only . It may not be accurate for all machines covered by this manual. Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TO[...]

NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty . Individual Printed Circuit Board Components are not available from Lincoln Electric. This information is pro- vided for reference only . Lincoln Electric discourages board level troub[...]

ELECTRICAL DIAGRAMS G-37 RANGER 305D SCHEMA TIC - CHOPPER PC BD - ALL CODES (M19792-1) G-37 NOTE: This diagram is for reference only . It may not be accurate for all machines covered by this manual. Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC [...]

NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty . Individual Printed Circuit Board Components are not available from Lincoln Electric. This information is pro- vided for reference only . Lincoln Electric discourages board level troub[...]