Bush Hog 2165 manuale d’uso

O per ator’ s M anual MODELS 2165 / 2175 / 2185 / 2195 ASSEMBL Y • OPERA TION • MAINTENANCE BA C K H O E S 703 $4.00 50033329 BUSH HOG, L.L.C. ®[...]

CONGRA TULA TIONS! Y ou have invested in the best implement of its type on the market today . The care you give your Great Bend implement will greatly determine your satisfaction with its performance and its service life. We urge a careful study of this manual to provide you with a thorough understanding of your new implement before operating, as w[...]

BA CKHOES O perator ’ s Man ual T ABLE OF CONTENTS SECTION/P ARA P AGE W arranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Dealer Preparation Check List . . . . . . . . . . . . . 3 Safety Procedures . . . . . . . . . . . . . . . . . . . . . . 5 Federal Laws and Regulations. . . . . . . . . . . . . 7 General Operation . . . . . .[...]

Gr eat Bend LIMITED W ARRANTY ✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯ Great Bend / Bush Hog L.L.C., warrants to the original purchaser of any new Great Bend equipment, purchased from an authorized Great Bend dealer, that the equipment be free from defects in material and work- manship for a peri[...]

DEALER PREP ARA TION CHECK LIST 2165, 2175, 2185 and 2195 BACKHOES BEFORE DELIVERING MACHINE - The following check list should be completed. Use the Operator ’s Manual as a guide. ❑ Machine properly assembled. ❑ All safety decals readable (See decal page). ❑ All bolts tightened to torque specifications given in the torque chart. ❑ Machine[...]

Safety Alert Symbol This Safety Alert Symbol means: “ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!” This symbol is used to call attention to safety precautions that should be followed by the operator to avoid accidents. When you see this symbol, carefully read the message that follows and heed its advice. Failure to comply with safe- ty pre[...]

IMPORT ANT SAFETY PRECAUTIONS This symbol is used to call attention to safe- ty precautions that should be followed by the operator to avoid accidents. When you see this symbol, carefully read the message that follows and heed its advice. Failure to comply with safety precautions could result in serious bodily injury. In addition to the design and [...]

12. DO NOT dig under stabilizers or tractor backhoe. Soft ground or sandy soil can cause cave-ins. 13. KEEP BUCKET away from the stabilizer area to avoid possible stabilizer damage. 14. ALWAYS swing bucket uphill to dump when on a hillside and keep loaded bucket low. 15. SET BRAKES and block wheels when operating on hills and banks to avoid dangero[...]

IMPORT ANT FEDERAL LA WS AND REGULA TIONS* CONCERNING EMPLOYERS, EMPLOYEES AND OPERA TIONS. *(This section is intended to explain in broad terms the concept and effect of the following federal laws and regulations. It is not intended as a legal interpretation of the laws and should not be considered as such). U.S. Public Law 91-596 (The Williams-St[...]

GENERAL OPERA TION CAUTION T o avoid possible injury , observe the following safety rules BEFORE OPERA TING the backhoe: 1. BE SURE area is clear of underground utilities or other hazards. 2. POSITION barricade around work area. 3. PROVIDE adequate front end weight to counter-balance tractor at all times. 20% of the total tractor , loader and back-[...]

SWING LEFT AND RAISE the boom by moving the control lever back and to the left. SWING RIGHT AND LOWER the boom by moving the lever forward and to the right. SWING RIGHT AND RAISE the boom by moving the lever back and to the right. 3. Crowd/Bucket: Push lever forward, the dipperstick moves out, away from the operator . Pull lever back, the dippersti[...]

Smooth, light handling of the controls will result in the most efficient backhoe operation. Operate the backhoe control levers to become famil- iar with their speed and movements. The engine speed and the size of the hydraulic system will deter- mine the speed of cylinder operation. When powering from tractor systems with higher output than require[...]

CAUTION T o avoid possible injury , observe the following safety rules when transporting the backhoe: 1. AL WA YS engage safety locks as shown on Figs. 1 and 3 when transporting backhoe. 2. TRA VEL SLOWL Y over rough terrain, on hillsides, and around curves to prevent tipping. 3. DO NOT drive the tractor near the edge of a ditch or excavation. 4. U[...]

General Operations FILLING THE BUCKET Control the bucket attitude throughout the digging cycle to keep teeth at the proper angle for best penetration. This will minimize dragging and scraping the bucket through the ground. When digging in hard-packed soil, bucket penetration can be increased by applying down pressure with the boom while crowding in[...]

General Operations SIDE SLOPE EXCA V A TING OR TRENCHING Dig with the backhoe uphill whenever possible. Level the backhoe on slopes with the stabilizers to dig plumb trenches, or use the backhoe or loader to cut a level slot for the uphill wheel and stabilizer . Pile the spoil from the slot on the low side. When on the side of a steep slope, cut a [...]

fully several times to purge the system of air . Hydraulic System Hoses Oil leaks in the pressure side of the system can be located by carefully inspecting the external area of the hoses and fittings. Check the return side of the system for leaks by examining the oil in the reservoir . If air is being drawn into the system, the oil will contain air[...]

TOOTH REPLACEMENT Bolt-On tooth points, when worn, can be replaced by removing the hardware that connects it to the cutting edge. Install new tooth and replace hardware if nec- essary . (Figure 5) Roll-Pinned tooth points, when worn, can be replaced by driving out the roll pin with a hammer and punch. Install the new tooth using a new roll pin and [...]

REMOV AL FROM TRACT OR - ST ORAGE The backhoe is self-assisting during the installation and removal procedures. For removal and storage, follow these steps: 1. Install the swing safety lock pin as shown in Figures 1 and 3. 2. Stretch out the boom, dipper stick and bucket as shown in Figure 9. Lower the bucket to the ground so that it rests there so[...]

ST ABILIZER P ADS The backhoe is supplied with flip-over stabilizer feet as standard equipment. They are suitable for most backhoe work and generally are all that is ever required. However , foot pad kits are available as options. These kits bolt to the standard feet and increase the versatility of the backhoe. See Figure 10. Hydraulic T rouble Sho[...]

18 TROUBLESHOOTING (Continued) Problem Cause Correction Machine loses power after Diverter valve on prime move Diverter valve may need rebuilding or operating satisfactorily leaking or bypassing oil internally replacing. initially through valve to reservoir Excessive back pressure Relieve condition. Restriction may be from outlet to reservoir . Rel[...]

19 T roubleshooting (Continued) Problem Cause Correction Loss of power in any one Worn or damaged rod seals on Repack cylinder . Rebuild cylinder , cylinder , including lift cylinder; external leaks replacing damaged parts as necessary . and crowd Spool not moved to full stroke Check spool travel - should be .26” either way , or a total of .52”[...]

20 T roubleshooting (Continued) Problem Cause Correction Slow operation of machine Relief valve setting in backhoe Relief pressure will have to be checked (lack of power) all cylinders control valve too low or defective and corrections made. Backhoe system pressure is 2400 PSI. Relief valve may need cleaning and over- hauling, or entire cartridge m[...]

21 T roubleshooting (Continued) Problem Cause Correction Leaky cylinders Oil is bypassing cylinder piston, Replace or rebuild the cylinder; replace scored piston, worn piston damaged parts. packing, or defective piston assembly Scored piston rods and worn Replace or rebuild the cylinder; replace guides in cylinder damaged parts. Bent piston rod in [...]

T roubleshooting (Continued) Problem Cause Correction Unable to push valve Paint on valve spool; sticking Clean valve spool. Binding is usually spool in valve spool or scored valve caused from an overtightened plug, spool mounting bolt, fitting in valve body or tie rod bolt. If a plug or fitting in the valve body is leaking, do not overtighten in a[...]

Replace Center Section Assemblies: Note: For the purpose of these instructions we will consider the section containing the MAIN RELIEF V AL VE as the left side of the valve. 1. Remove control valve from the backhoe. 2. Thoroughly clean the exterior of the valve before beginning disassembly procedures. 3. Since the valve will be assembled in the sam[...]

24 ASSEMBL Y Basic components for all models can be identified in Figure 12. Refer to Page 4 3 for photographs of unit on shipping pallet. General: The backhoe has been partially disassembled and strapped to a skid for shipping purposes. Initial installa- tion on the tractor will require a hoist or other device capable of safely lifting the entire [...]

3. Remove parts bag containing bucket pins from backhoe. Attach bucket (D) to dipperstick (B) using one pin, 3/8” bolt, and locknut. 4. Attach bucket link (E) to bucket, using same hard- ware as listed for step #3. 5. Reposition hoist on backhoe to prevent tipping and raise mainframe (G) slightly . Remove all remaining strapping and attach stabil[...]

26 3-Point Hitch Linkage 2165 & 2175 The backhoe is mounted on the tractor lower link arms and an adjustable upper link is supplied to replace the tractor upper link. A set of stabilizer arms is included. They bolt from the adjustable upper link to the backhoe mainframe, locking the hoe rigidly in one position. IMPORTANT: Tractor lower links mu[...]

27 ASSEMBL Y (Refer to Figures 14 & 15) IMPORTANT: Tighten all hardware to the torque requirements specified in the torque chart. To prevent bodily injury, do not operate backhoe unless Link Weldments (Figure 15 - Items 1 & 2) are properly installed and adjusted. Failure to do so may result in backhoe being thrust upward, crushing operator [...]

2185/2195 3-POINT HITCH LINKAGE 3-Point Hitch Linkage The backhoe is mounted on the tractor lower link arms and an adjustable upper link is supplied to replace the tractor upper link. A set of stabilizer arms are included. They bolt from the adjustable upper link to the backhoe mainframe, locking the hoe rigid- ly in one position. IMPORTANT- Tracto[...]

ASSEMBL Y IMPORTANT: Tighten all hardware to the torque requirements specified in the torque chart on page 45. To prevent bodily injury, do not operate backhoe unless Link Weldments ( Figure 16 - Items 1 & 2) are properly installed and adjusted. Failure to do so may result in backhoe being thrust upward, crushing operator against cab or ROPS. 1[...]

General Description The PTO Pump Kits consist of those parts required to power the backhoe from the tractor’s PTO shaft. They include the PTO pump (6 or 8 gpm) and adapter, reservoir, filtration system, hydraulic hoses, and fittings. In addition, they include a torque plate that straddles the tractor’s draw bar and keeps the pump from turning w[...]

identical fitting to “In/Pressure” port of bulkhead con- nection. Orient fittings so that free ends of fittings point horizontally toward center of backhoe. 6. Take one end of 28” hydraulic hose (23) and route under foot platform, through hole at top of left hand backhoe side plate, and connect to 90° adapter fit- ting (27) at inlet of filte[...]

Figure 18 32 valve or other accessory valve is connected to the tractor system, and whether the tractor has an open- center system (constant pumping of oil to control valve and back to reservoir) or a closed-center sys- tem (no flow of oil until there is a demand at one hydraulic cylinder). The four hook-up methods are described below. IMPORTANT: F[...]

33 Since the Power Beyond Kit is used with open-cen- ter tractor hydraulic systems, oil constantly flows from the pump, through the backhoe valve and the loader valve or other accessory valve, and then to the reservoir. See further in this manual for instruc- tions on proper assembly. 2. CLOSED CENTER SYSTEM: (2165) Because a closed-center system r[...]

Hydraulic Hook-Up (2175, 2185, 2195) For Tractors With Closed-Center Hydraulic Systems (Figure 21) There are two basic types of hydraulic systems, open- center and closed-center. The open-center system con- stantly pumps oil through the hydraulic cylinder operat- ing valves and returns the oil to the reservoir. The closed-center system does not pum[...]

35 POWER BEYOND KITS FOR TRACTORS WITH OPEN-CENTER HYDRAULIC SYSTEMS General Description A power beyond application is required to convert a hydraulic valve so that pressurized oil can be directed to another “open center” valve. This allows the back- hoe valve and a loader valve, or other accessory , to be connected to the tractor hydraulic sys[...]

GREA T BEND BACKHOE & GREA T BEND LOADER V AL VE Figure 23 NOTE: Large loader valve (Walvoil) shown. Small loader valve porting is different. Refer to loader operator’s manual for different valves. Backhoe Bulkhead Connection (Located on inside of mainframe side plate at left rear of hoe) Inlet Great Bend Loader Valve Outlet Open Center Plug [...]

- SECOND PROCEDURE ASSEMBL Y OF A GREA T BEND BACKHOE TO A NON GREA T BEND LOADER V AL VE - OR - GREA T BEND BACKHOE TO LOADER V AL VE USING PTO PUMP KIT OPTION Assembly of a Great Bend backhoe to a non-Great Bend loader valve, OR a Great Bend Backhoe to a loader valve using the PTO Pump Kit option. IMPORTANT: Improper hydraulic hook-up can cause s[...]

FLOW DIVIDER KIT (Optional) General Description The Flow Divider Kit consists of those parts required to power the backhoe from tractors or skid steer loaders that have hydraulic flow rates above 12 gal- lons per minute (gpm). It includes the flow divider valve, hydraulic hoses to connect the valve to the backhoe, and adapter fittings. This kit doe[...]

Tractors with an auxiliary hydraulic flow greater than 15 gpm Connect JIC swivel run tee (9) to 90° male adapter (10) on “K2” port on valve as shown in Figure 27. IMPORTANT - The location of the JIC swivel run tee will ensure that proper flow is provided to the back- hoe for smooth operation. The flow into the valve from the tractor is divided[...]

Skid Steers with an auxiliary hydraulic flow of 15 gpm or less - Figure 29 Assemble straight male adapter (6) to “K3” port on valve as shown in Figure 29. Assemble JIC swivel run tee (9) to straight male adapter (6). Assemble 90° male adapter (10) to “K2” port on valve. Skid Steers with an auxiliary hydraulic flow greater than 15 gpm - Fig[...]

41 Figure 29 FOR SKID STEER HYDRAULIC FLOW OF 15 GPM OR LESS Figure 30 FOR SKID STEER HYDRAULIC FLOW GREATER THAN 15 GPM To Backhoe Bulkhead “Return” Connection To Backhoe Bulkhead “Return” Connection To Backhoe Bulkhead “Pressure” Connection To Backhoe Bulkhead “Pressure” Connection Return Line To Skid Steer Return Line To Skid Ste[...]

BACKHOES - DIMENSIONS AND SPECIFICATIONS 42 Specifications May Vary Depending on Tractor Model and are Subject to Change Without Notification. Tractors Must Be Equipped with ROPS and Seat belt That Will Provide Better Safety. SERIES 2165 2175 2185 2195 Maximum Digging Depth 7’0” 8’0” 9’0” 10’0” A. Digging Depth (two foot flat bottom[...]

REPOSITION ST ABILIZER CYLINDERS BEFORE REMOVING BACKHOE FROM SHIPPING P ALLET Cylinder ports must be pointing upward and hoses routed above the cylinder to main- frame pivot pin connection. 43 Palletized backhoe as shipped from fac- tory. Remove stabilizers and fasteners from pallet. Position stabilizer between mounting lugs and pin into place. Cu[...]

SAFETY DECALS The safety of the operator was a prime consideration in the design of the backhoe. Proper shielding, conve- nient controls, simple adjustments and other safety features have been built into this implement. The following decals are located on the backhoe. Keep decals clean and replace them immediately if they are missing. Contact your [...]

T ORQUE SPECIFICA TIONS Proper toque for American fasteners used on Great Bend equipment. Recommended Torque in Foot Pounds (Newton Meters).* BOLT DIAMETER WRENCH (IN.) “B” AND SAE SAE SAE SIZE (IN.) “A” THREAD SIZE GRADE 2 GRADE 5 GRADE 8 7/16 1/4 - 2O UNC 6 (7) 8 (11) 12 (16) 7/16 1/4 - 28 UNF 6 (8) 10 (13) 14 (18) 1/2 5/16 - 18 UNC 11 (1[...]

P .O. Box 1039 • Selma, AL 36702-1039 (334) 874-2700 BUSH HOG, L.L.C. ®[...]