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Sears 917.255741 manual

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  • Page 1

    OWNERS MANUAL MODE L NO, 917_255741 Caution: Read Rules for Safe Operation and Instructions Carefully 12 H.P. 38" RIDING LAWN TRAC ELECTRIC TOR START Assembly Installation Operation Repair Parts Sears, Roebuck and Co,, Chicago, tL 60684 US A,[...]

  • Page 2

    CONGRATULATIONS on your purchase of a Sears Lawn Tractor It has been designed, engineered and manufactured to give you the best possible dependability and performance. Should you experience any problem you cannot easily reme- dy, please contact your nearest Sears Service DepartmenL They have competent, well-trained technicians and the proper tools [...]

  • Page 3

    FOR SAFE OPERAT O NARNING: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest- covere6, brush,covered or grass-covered land unless the engine's exhaust system is equipped with a spark arrestor meeting applicable Local or statelaws(if any) Ifasparkarrester is used. it should be maint[...]

  • Page 4

    To assemble your Tractor you will need: two 7/16" wrenches, two 9/16" wrenches, two 1/2" wrenches, a 3/4" wrench and a utility knife NOTE: RIGHT HAND (R,H) AND LEFT HAND (LH.) ARE DETERMINED FROM OPERATOR'S POSITION WHILE SEATED ON THE TRACTOR UPPER STEERING SHAFT BOLTS FIGURE 1 SEAT HE× SHOULDER BOLT 5t!6 - 18 & LOCK [...]

  • Page 5

    BATTERY ONSTALLATDON WEAR EYE AND FACE SHIELD.. WASH HANDS OR CLOTHING IMMEDI- ATELY tF ACCIDENTALLY IN CONTACT WITH ELECTROLYTE° DO NOT SMOKE, FUMES FROM CHARG- ED ELECTROLYTE ARE EXPLOSIVE. 1. Fill and charge Battery (before installing), NOTE: SEE DETAILED iNSTRUCTIONS PACKAGED WITH BAT- TERY. ao Fill Battery with electrolyte to bottoms of tubes[...]

  • Page 6

    WING INTERNAL/ EXTERNAL LOCKWASHER BATTERY BOLT FIGURE 6A WING NUT INTERNALIEXTERNAL LOCKWASHE R TERMINAL GUARD 4, Install Battery using: two Int./Ext Lockwashers,,two Wing Nuts (shown full size below} and q=D 0 two Battery Bolts and one Terminal Guard found in Bag of Parts. ao Using the slot on one side of the Battery Support (Fig. 6A) slide Bat[...]

  • Page 7

    INaTIAL SERVnCE NOTE: BE CAREFUL NOT TO ALLOW DiRT TO ENTER THE ENGINE WHEN CHECKING OR ADDING OIL OR FUEL I., Open Hood. 2. Check Engine Oil Leve! with Tractor on level ground Re- move and wipe Dipstick (Fig, 9) clean, screw it in tight for a few seconds, remove and read Oil Level if necessary, add Oil until "FUEL" mark is reached RECOMM[...]

  • Page 8

    CHOKE FAST MOWERBLADE CLUTCH"ENGAGED'_ POSITION HEADLIGHT THROTTLE _CONTROL LEVER "DISENGAGE D" POSITION PARKING BRAKE "tON "DISENGAGED" POSITION _I _= CLUTCH!BRAKE "CLUTCH" POSIT,ON "C LUTCH/BRAK E" POSITION FIGURE 10 _"_ _. / GEARSHIFT LEVER " _ LIFT LEVER : _ /PLUNGER LIFT FIGURE 1[...]

  • Page 9

    MOWER INSTALL.ATnO_ Your 38" Mower installs without the use of tools Raise Lift Lever (Fig° 11) to its highest position. Turn Depth Adjust- ment Knob to lowest position (Fig 14) !o Instal! Front Hinge Pin through Axle and Parallel Link (Fig. 12). Secure with Retainer Spring° 2 Install Rear Hinge Pin through Mower Lift Brackets and Parallel L[...]

  • Page 10

    LIFT PLUNGER LIFT LEVER TOP OF FLANGE A FIGURE 15 SIDE-TO.SIDE ADJUSTMENT TRUNNION FIGURE 16 i_REAR /FLANGE REAR SUSPENSION ARM REAR SUSPENSION TRUNNION LIFT BRACKET FIGURE 17 SI DE-TO-SI DE :3JUSTMENT TOP OF FLANGE A D FRONT FLANGE LEVEL MOWER FROM SIDE TO SiDE SEE MOWER ADJUSTMENT, PAGE 9. t_ Park tractor on level surface_ Depress Lift Lever Pl[...]

  • Page 11

    OPERATUO = MOWER READ THE "RULES FOR SAFE OPERA- TION" CAREFULLY BEFORE OPERAT- ING YOUR MOWER, THE MOWER MUST BE ADJUSTED PROPERLY FROM FRONT TO REAR AND LEVELED FROM SIDE TO StDE BEFORE OPERATING,, THtS IS NECESSARY FOR LEVEL AND EFFICIENT MOWING REFER TO PAGE 10 1. Place Mower Blade Clutch Lever in "DISENGAGED" position (Fig.[...]

  • Page 12

    MANDREL ASSEMBLY __i FLANGES LOCKWASHER _ _ .Ex eOLT / FIGURE 21 J ! I CENTER I | ' HOLE t ........... / ......... i FIGURE 22 MAINTENANCE = MOWER FOR ANY ADJUSTMENTS, INSPECTION OR MAINTENANCE: PUSH TRACTOR CLUTCH=BRAKE PED- AL COMPLETELY INTO BRAKE POSI- TION, PLACE PARKING BRAKE IN "ENGAGED" POSITION. MOVE GEAR SHIFT LEVER TO &quo[...]

  • Page 13

    TRACTOR OPERATION 1, Depress Lift Lever Plunger at top of Mower Lift Lever and move Lever rearward to its "HIGHEST" position (Fig 23). 2, With engine running and warm, place Throttle Control Lever midway between "FAST" and "SLOW" position 3, Move Gear Shift Lever to "1ST" Gear (Fig 24) 4_ Release Clutch-Brake[...]

  • Page 14

    STARTING YOUR TRACTOR WtTN A LOW BATTERY if your" Battery is too tow to start the engine, it should be recharged, If "Jumper Cables" are used for emergency starting follow this procedure NOTE: YOUR TRACTOR IS EQUIP.- PED WITH A 12 VOLT NEGATIVE GROUNDED SYSTEM, THE OTHER VEHICLE MUST ALSO BE A 12 VOLT NEGA- TIVE GROUNDED SYSTEM LEAD-[...]

  • Page 15

    4, CHECK BRAKE OPERATION This tractor is equipped with an adjustable brake system mounted on the right side of the transaxle (Fig., 27). tF TRACTOR REQUIRES MORE THAN SIX FEET STOPPING DISTANCE tN HIGHEST GEAR, THEN BRAKE MUST BE ADJUSTED,, NOTE: PARKING BRAKE MUST BE DISENGAGE D AND GEAR SHIFT LEVER IN NEUTRAL WHILE MAKING ADJ USTM ENT., ao Depres[...]

  • Page 16

    AIR CLEANER COVER _"_ --__ SCREW _, k BLOWER HOUSING SCREW% SCREW COOLING HEX HD FINS SCR EW CYLINDER HEAD N COVER HEX HD SCREW 3. CLEAN ENGINE COOLING FINS Keep Engine Cooling Fins free of dust, dirt and oil to pre- vent Engine damage from overheating. a. Snap Cover off Air Cleaner (Fig. 29L Remove Hex Head Screw from inside Air Cleaner. Remo[...]

  • Page 17

    ASNEEDED 1. CARBURETOR ADJUSTMENT DO NOT MAKE UNNECESSARYADJUSTMENTS FAC- TORY SETTINGS ARE SATISFACTORY FOR MOST APPLICATIONS AND CONDITIONS. tF ADJUSTMENTS ARE NEEDED, PROCEED AS FOLLOWS: a, Make sure Air Cleaner is clean (see page 15), b,, With engine not running, place Throttle at "FAST" * f' i' . * detent (not m CHOKE posit[...]

  • Page 18

    fl RETAINER SPRING FIGURE 32 FIGURE 33 TRANSAXLE PULLEY BELT GUIDE BRACKET BELT RETAINER SPRING SHIFT GATE REPLACE TRACTOR MOTION DRIVE BELT The tractor Drive Belt may be replaced without tools, Park the tractor on level area, Engage Parking Brake, NOTE: BELT INSTALLATION DECAL UNDER LEFT FOOT- REST. a, Remove mower. (See Mower Section, page 20). b[...]

  • Page 19

    5. TIRE CARE a. Maintain tire pressure in front tires at 14 PSi and rear tires at 12 PSi b Keep tires free of gasoline, oil. or insect control chemio cals which can destroy rubber c Avoid stumps, stones, deep ruts and other hazards that may cause tire damage d. Removing front wheel for tire repair (Fig. 35) -- Block up front axle securely° Puit of[...]

  • Page 20

    L_H, MAN[ ENGINE IDLER PULLEY _- " • IDLER BELT GUIDE ROCK SHAFT R_H. _MANDREL COTTER PIN FIGURE 38 SPRING LOWER HOLE (ORIGINAL POSITION) UPPER HOLE _1_ R.H, PIVOT BRACKET BRACKET R_H, SUSPENSION RETAINER RETAINER SPRINGS SPRINGS REAR SUSPENSION TRUNNIONS LIFT BRACKET HINGE PINS ' FIGURE 39 TO REMOVE MOWER BELT NOTE: MOWER BELT INSTAL[...]

  • Page 21

    OuBLE SNOOTS G POSSIBLE CAUSE POSSIBLE REMEDY WILL NOT START Foot Pedal not depressed Mower Blade Clutch Lever engaged No gasoline in Fuel Tank, clogged Fuel Line, or Fuel Filter Bfown Fuse Dead Battery HARD TO START Choked improperly, flooded Engine Ctogged Fuel System Dirty Air Cleaner Spark Plug dirty or improper gap Defective Battery Depress Fo[...]

  • Page 22

    LUBRICATION CHART AXLE PIVOT (_ (_ SPINDLE / SPINDLE BEARING _ ....... ,_ :_,4._ v-- =_ .... -----------FRONT WHEEL BEARING (_ N---L. (_ TIE ROD "I-'_" ,.y .__ "--"-" TIE ROD (_ (_ STEERING ROD PIVOT. r-= "'° " _ CLUTCH PIVOT (_) STEERING ROD PIVOT (_) CLUTCH/BRAKE PIVOT _ CLUTCH/BRAKE (_ (_ ATTACHMENTL[...]

  • Page 23

    SCHEMATIC; 12 H.P° 38" RIDING LAWN TRACTOR--MODEL NUMBER 917o255741 RED RED 30 AMP IGNITION SWITCH STD365402 POSITION CIRCUIT OFF M-G ON B*L START B_ WHITE NEUTRAL ATTACH STARTER % WHITE IGNITION (_ SWITCH M B O a G INTER'K SW BLACK 7 BLACK INTER'K SW SOLID STATE IGNITION SOLENOID % % SPARK PLUG RED ORANGE RECTIFIER CHARGING (DIODE)[...]

  • Page 24

    REPAHR PARTS 12 H.P. 38" RIDING LAWN TRACTOR-MODEL NUMBER 917.255741 ELECTRICAL 9 % 17 29 20 !1 18[...]

  • Page 25

    REPAIR PARTS ELECTR ICAL 12 H.P. 38" RIDING LAWN TRACTOR--MODEL NUMBER 917.255741 KEY NO. ! 2 3 4 5 6 7 8 9 10 11 12 13 14 t5 16 PART DESCRIPTION KEY PART DESCRIPTION NO. NO. NO. 7662J Bulb, L,ght 17 719J 105386X Harness, Light Socket 18 5t14J 108865X Harness, Ignition 20 42073 105613X Key Set 21 STD522507 105381X Switch, Light 22 STD551025 10[...]

  • Page 26

    REPAIR PARTS 12 H,P. 38" RIDING LAWN TRACTOR--MODEL NUMBER 917.255741 ENCLOSURE L, 49 54 4O 55 29 G_ 21 G 37_ 29 20 33 35 52[...]

  • Page 27

    REPAIR PARTS ENCLOSURE '12 H.P. 38" RIDING LAWN TRACTOR-MODEL NUMBER 917.255741 "M KEY NO. t 2 3 4 5 6 7 8 9 10 1! 12 13 14 16 17 18 19 20 21 22 24 25 26 27 28 29 3O 31 32 PART NO. t08446X 17490612 17490616 1055t3X t05529X 73680500 105512X 105514X 105274X 19131312 STD523707 73680600 17490608 105753X 105465X 105464X STD533707 !05466X [...]

  • Page 28

    REPAIR PARTS 12 H.P. 38" RIDING LAWN TRACTOR--MODEL NUMBER 917.255741 DRIVE 7O =--58 _r_ ' _59 61 16 61 90 OPTIONAL EQUIPMENT Spark Arrester Screen Assembly 677V1[...]

  • Page 29

    ; EPAU$ :)RIVE PARTS 12 H.P. 38" RIDING LAWN TRACTOR--MODEL NUMBER 917.255741 KEY NO 2 3 4 5 6 0 1 13 15 16 17 19 20 21 22 23 24 25 26 27 28 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 PART DESCRIPTION KEY PART DESCRIPTION NO NO. NO 108872X Engine, t2 HP Model Nor 143-366202 105731X Pulley, Engine 9767H Valve, Drain Oil STD551143 [...]

  • Page 30

    _EPAaR PARTS 12 H,P, 38" RIDING LAWN TRACTOR--MODEL NUMBER 917.255741 STEERING AND FRONT AXLE 55 - 30- 63 ,/--66 75 67 ,68[...]

  • Page 31

    REPAaR PARTS 12 H.P, 38" RIDING LAWN TRACTOR_-MODEL NUMBER 917.255741 STEERING AND FRONT AXLE KEY ,PAR T DESCRIPTION KEY PART DESCRIPTION NO NO NO. NO 1 105620X Dash 36 10t930X 2 74180512 Screw .. Truss Hd, Cross Recess 37 109068X 5/16 .. t8 x 3/4 38 2882J 3 73510500 Nut- Keps 5/16- 18 39 74580 4 105800X Decal- Dash Panel 40 71208 5 108793X Co[...]

  • Page 32

    REPAIIR PARTS 12 HoP. 38" RIDING LAWN TRACTOR-.MODEL NUMBER 917,255741, LIFT ADJUSTMENT 25 2O 9 C A 41 22 34 4O A 5! - 32 -[...]

  • Page 33

    REPAIR PARTS 12 H.P. 38" RIDING LAWN TRACTOR--MODEL NUMBER 917.255741 LIFT ADJUSTMENT KEY PART DESCRIPTION KEY PART DESCRIPTION NO NO NO NO 1 t06448X Lever. Clutch, Mower 34 2 106932X Knob 35 3 I0645tX Bolt, Shoulder 36 4 73680600 Nut, Lock. 3/8 • t6 38 5 !06452X Bracket, Switch, Interlock 39 6 19171713 Washer 17/32 x t • t/16x t3Ga, 40 7 [...]

  • Page 34

    12 H,P,38" RIDING LAWN TRACTOR--MODEL NUMBER 917.255741 38" MOWER -"-- t CC 55 I 56 56 _61 J 12 _ll FF-- REAR BAGGER ATTACHMENT IS BEING I USED, REFER TO REAR BAGGER OWNERS [MANUAL FOR BLADE PART NOo H H 41 42 H 22 A 68 I3 E t B ? E 7 34 -[...]

  • Page 35

    RSPAUR PARTS 12 H.P. 38" RIDING LAWN TRACTOR--MODEL NUMBER 917.255741 38" MOWER KEY PART DESCRIPTION KEY PART DESCRfPTION NO NQ NO NO t 106085X V-Belt 39 2 105689X Housing 40 3 8417J Runner, R H 41 4 73680600 Nut, Lock, 3/8. 16 42 5 t9111216 Washer, 11/32 x 3/4 x 16 Ga 43 6 72140505 Bolt, Cart, 5/16- 18 x 5/8 44 7 105896X Bracket, Deflect[...]

  • Page 36

    REPAIR PARTS 12 H.P. 38" RIDING LAWN TRACTOR--MODEL NUMBER 917.255741 TRANSAXLE--MODEL NUMBER 143.920-002 75 10 35 8 / 31 29 29 _(_- _ 32 6 62 35 <f _f18 34 _ 60 69 26 . 11 / 30 51 48 30 52 30 30 53A 34 29 37 67 41 - 36-[...]

  • Page 37

    REPAIR PARTS; 12 H.P. 38" RIDING LAWN TRACTOR_-MODEL NUMBER 917.255741 TRANSAXLE--MODEL NUMBER 143o920-002 KEY NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 2O 21 22 23 24 25 26 27 28 29 3O 31 32 33 34 35 36 37 PART DESCRIPTION KEY PART NO,. NO, NO, 772094 Cover, Transaxle 38 790006 780086 Bearing, Needle 39 786026 770082 Case, Transaxle 40[...]

  • Page 38

    R_PAIR PARTS 12 H.P. 38" RIDING LAWN TRACTOR--MODEL NUMBER 917.255741 ENGINE-+MODEL NUMBER 143,366202 ENGINE 62 ,,.,,.. 58 13 82 - 38 +[...]

  • Page 39

    REPAIR ENGINE KEY NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2O 21 22 23 24 25 26 27 28 28A 29 30 31 32 33 34 35 36 37 38 39 4O 41 42 43 44 45 45A 46 47 49 5O 51 52 53 54 55 56 57 58 59 6O 6OA 6t 62 63 64 PARTS 12 H.P. 38" RIDING LAWN "I-RACTOR°-MODEL NUMBER 917o255741 ENGINE--MODEL NUMBER 143.366202 PART DESCRIPTION KEY PART NO[...]

  • Page 40

    REPAIR PAR TS ENGINE 12 H.P. 38" RIDING LAWN TRACTOR--MODEL NUMBER 917.255741 ENGINE-oMODEL NUMBER 143,366202 40 -[...]

  • Page 41

    REPAIR PARTS 12 H.P. 38" RIDING LAWN TRACTOR--MODEL NUMBER 917.255741 ENGINE--MODEL NUMBER 143,366202 ENGINE KEY PART DESCRIPTION KEY PART DESCRIPTION NOo NO., NO, NO, 132 '33629 133 *34912 !34 35286 135 650784 136 34911 137 611096 137A 650873 138 610935 !39 610921 140 610922 143 33997 Gasket, Air cleaner elbow 169 30688 Gasket, Air clean[...]

  • Page 42

    $111PAIII PAIIT$ 12 H.P. 38" RIDING LAWN TRACTOR-MODEL NUMBER 917.255741 ENGINE--MODEL NUMBER 143.366202 CARBURETOR NO. 632413 KEY PART 1 _...4_ 7 /_ NO NO.. -_" 632413 t , -" _ _ 1 632243 2-._ i '__ _17 _ I _ 15 2 632244 ',' @. / 35A 63224 630738 27--,,.,_ @ to _ 14- "_ 4 650506 4 29 _=_ _:_f "° 5 630766 ..[...]

  • Page 43

    SUGGESTED GUIDE FOR SUGHTING SLOPES FOR SAFE OPERATUON SIGHTING .GUIDE ONLY RiDE UP AND DOWN HiLL NOT ACROSS HILL SIGHT AND HOLD THiS LEVEL WiTH SKY LINE OR TREE t5 ° MAX. Operate your Tractor up and down the face of slopes (not greater than 15°); never across the face. Make turns gradu- ally to prevent tipping or loss of control. Exermse extreme[...]

  • Page 44

    OWNERS MANUAL MODEL NO. 917.255741 HOW TO ORDER REPAIR PARTS 12 H.P. 38" RID JNG LAWN TRACTOR ELECTRIC START The Model Number will be found on the Model Plate attached to the Fender,, Always mention the Model Number when requesting service or parts for' your Lawn Tractor. Al! parts listed herein may be ordered from any Sears Service Cente[...]