_.ARS nFTSMnN° ILl MODEL NUMBER 917.256710 • • • • • OWNER'S MANUAL Assembly Operation Customer Responsibilities Service and Adjustments Repair Parts CAUTION: Read and follow all safety rules and instructions before operating this equipment.
SAFETY Practices RULES for Ridden Safe Operation Mowers ==J= IMPORTANT: THIS CUTTING MACHINE IS CAPABLE OF AMPUTp, TING HANDS AND FEET AND THROWING OBJECTS. FAILURE TO OBSERVE THE FOLLOWING SAFETY INSTRUCTIONS COL_LD RESULT IN SERIOUS INJURY OR DEATH. I. • • • • III. CHILDREN GENERAL OPERATION Read, understand, and follow all instructions in the manual and on the machine before starting. Only allow responsible adults, who are familiar with the instructions, to operate the machine.
PRODUCT CONGRATULATIONS _: on your purchase of a Sears tractor. It has been designed, engineered and manufactured to give you tht_ best possible dependability and performance. Should you expedei_ce any problem you cannot easily remedy, please contact your nearest Sears Service Center/Department. We have competent, well-trained technicians and the proper_ools to service or repair this tractor. Please read and ret_'_q this manual.
TABLE OF CONTENTS SAFETY RULES ............................................................ 2 PRODUCT SPECIFICATIONS ...................................... 3 CUSTOMER RESPONSIBILITIES ..................... 3, 17-20 WARRANTY .................................................................. 3 TRACTOR ACCESSORIES .......................................... 5 ASSEMBLY ............................................................. 7-10 OPERATION ..........................................................
ACCESSORIES AND ATTACHMENTS ,7 These accessorias and attachments were available through most Sears reta _outlets a_d serwce centers when the tractor was purchased. Most Sears stores can order these items for you when you provide the model number of your tractor. MAINTENANCE ENGINE SPARK PLUG GAS CAN ENGINE OIL FUEL STABILIZER BLADES BELTS PERFORMANCE Sears offers a wide variety of attachments that fit your tractor. Many of these are listed below with brief explanations of how they can help you.
CONTENTS OF HARDWARE PACK ,i Parts Bag contents shown full size Parts packed separately in carton (1) Knob F-q Seat w (1) Shoulder Bolt 5/16-18 Video Cassette Mulcher Plate Steering Wheel (1) Washer 17/32 x 1-3/16 x 12 Gauge Manual ta ner Springs (double loop) Parts Bag Parts bag contents not shown full size (4) Retainer Springs (single loop) {_]]]]]1_ (2) Shoulder Bolts (2) Washers 3/6 x 7/8 x 14 Gauge s #10 x 5/8 (2) Lock Washers Q (2) Centerlock Nuts (2) Gauge Wheels #10 _--_(2)
ASSEMBLY Your new tractor has been assembled at the factory with exception of those parts left unassembled for shipping purposes. To ensure safe and proper operation of your tractor, all parts and hardware you assemble must be tightened securely. Use the correct tools as necessary to insure proper tightness. TOOLS REQUIRED FOR ASSEMBLY ..I A socket wrench set will make assembly easier. Standard wrench sizes are listed. STEERING WHEEL INSERT _...
ASSEMBLY CONNECT BATTERY I_STALL (See Fig. 2) • Lift hood to raised position. • Open terminal access doors, remove terminal protective caps and discard. • If this battery is put into service after month and year indicated on label (label located between terminals) charge battery for minimum of one hour at 6-10 amps. • First connect RED battery cable to positive (+) battery terminal with hex bolt, flat washer, lock washer and hex nut as shown. Tighten securely.
ASSEMBLY INSTALL MOWER Figs. 4 and 7) AND DRIVE BELT (See Be sure tractor is on level surface and mower suspension arms are raised with a'_tachment lift control. Engage parking brake. • Cut and remove ties securing anti-sway bar and belts. Swing anti-sway bar to left side of mower deck. • Slide mower under tractor with discharge guard to right side of tractor. • IMPORTANT: CHECK BELT FOR PROPER ROUTING IN ALL MOWER PULLEY GROOVES, INSTALL BELT INTO ELECTRIC CLUTCH PULLEY GROOVE.
ASSEMBLY INSTALL MULCHER PLATE TO CONVERT TO BAGGING _)R. (See Figs. 5 & 6) DISCHARGING • Simply remove mulcller plate and store in.a safe place. Your mower is now ready for dischargir_g ot_rlstallationof optional grass catcher accessory. Install two latch hooks to mulcher plate using screw, washer, lock washer, and weld nut as shown. NOTE: Pre-assemble weld nut to latch hook by inserting weld nut from the top with hook pointing down. • Tighten hardware securely.
OPERATION These symbols may appear on your tractor or in literature supplied with the product. Learn and understand their meaning.
OPERATION r i KNOW YOUR TRACTOR READ THIS OWNER'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR TRACTOR Compare the illustrations with your tractor to familiarize yourself with the locations of various controls_3ndadjustments, Save this manual for future reference. AMMETER CHOKE ATI'ACHMENTCLUTCH SWITCH CONTROL _" ..... ~_ LIFT LEVER PLUNGER THROTTLE CONTROL LIGHT SWITCH ATTACHMENT LEVER LIFT CLUTCH/BRAKE PARKING BRAKE LEVER HEIGHT ADJUSTMENT KNOB MOTION CONTROL FREEWHEEL CONTROL FIG.
OPERATION The operation of any _ractor can result in foreign objects thrown into the eyes, which can result in severe eye damage. Always wear safety glasses or eye shields while operating your tractor or perfo_ing any adiustments or repairs. We recommend a wide vision safety mask over the spec_*3cles or standard safety glasses.
OPERATION TO OPERATE MOWER (See Fig. 9) • Slowly move motion control lever to slowest setting. Your tractor is equipped with an operator presence sensing switch. Any attempt by the operator to leave the seat with the engine running and the attachment clutch engaged will shut off the engine. • Make all turns slowly. • • When pushing or towing your tractor, be sure to disengage transmission by placing freewheel control in freewheeling position.
OPERATION I ADD GASOLINE NOTE: If at a high altitude (above3000 feet) or in cold temperatures (below 32°F), the carb,_rator fuel mixture may need to be adjusted for best engine performance. See "TO ADJUST CARBURETOR" in the_ervice and Adjustments section of this manual. • Fill fuel tank. Use fresh, clean, regular unleaded gasoline with a minimum of 87 octane. (Use of leaded gasoline will increase carbon and lead oxide deposits and reduce valve life). Do not mix oil with gasoline.
OPERATION i MOWING - TIPS MULCHING • Tire chains cannot be used when the mower housincl is attached to tractor. • Mower should be propef, f leveled for best mowing performance. See "TO LEVEL MOWER HOUSING" in the Service and Adjustments section of this manual. The left hand side of mower should be used for trimming. • • Ddve so that clippings are discharged onto the area that has been cut. Have the cut area to the right of the machine.
CUSTOMER RESPONSIBILITIES FILL IN DATES AS You cO PL E ;" REGULARSERVICE Check Brake Operation CheckTirePressure _T Checkfor LooseFasteners R Sharpen/Replace Mower Blades T _ _ Vw_ LubricationChart i/ Check Battery Level/Recharge V' CleanBatteryand Terminals R CheckTransaxleCooling If Adjust Blade Belt(s) Tension V's Adjust Moti.onDrive Belt(s)Tension I_s Check Engine Oil Level Change EngineOil I_ I_ V' 1_1.2.
CUSTOMER RESPONSIBI61TIES TRACTOR TO SHARPEN BRAKE OPERATION If tractor requires more than six (6) feet stopping distance at high speed in highest gear, then brake must be adjusted. (See "TO ADJUST BRAKE" in the Service and Adjustments section of this manual). TIRES To check blade balance, you will need a 5/8" diameter steel bolt, pin, or a cone balance r. (When using a cone balancer, follow the instructions supplied with balancer).
CUSTOMER TRANSAXLE RESPONSIBILITIES COOLING TO CHANGE ENGINE OIL (See Fig. 15) The fan and cooling fins of transm=ss=onsho_d clean to assure proper coolmg. Determine temperature range expected before oil chang_ All o_lmust meet API service classification SF or SG. • Be sure tractor is on level surface be kept Do not attempt to clean fan or transm=ss=on wh_le engine is runnmg or wh=le the transmission ts hot • Oil will dram more freely when warm. Catch o_1in a suitable container.
CUSTOMER RESPONSIBILITIES TO SERVICE PRE-CLEANER ENGINE OIL FILTER • Replace the engine oilfilter every season or every other oil change if the tractor is used more than 100 hours in one year. Slide foam pre-cleaner off cartridge. Wash it in liquid detergent and water. • Squeeze it dry in a clean cloth. • Saturate it in engine oil. Wrap it in clean, absorbent cloth and squeeze to remove excess oil.
SRRVICE AND ADJUSTMENTS CAU_ONi _ • • TO REMOVE I_EFORE PERFORMING ANY SERVICE OR ADJUSTMENTS: Pla_e r_otion control lever in neutral (N) position. Depres_ Place #/tachment clutch/brake clutch pedal in "DISENGAGED" fully and set parking position. brake. Turn ignition key "OFF" and remove key. Make sure the blades and all moving parts have completely stopped. Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with plug.
SERVICE AND ADJUSTMENTS TO LEVEL MOWER HOUSING FRONT-TO-BACK ADJUSTMENT (See Figs. 22 and 23) IMPORTANT: DECK MUST BE LEVEL SIDE-TO-SIDE. tF THE FOLLOWING FRONT-TO-BACK ADJUSTMENT IS NECESSARY, BE SURE TO ADJUST BOTH FRONT LINKS EQUALLY SO MOWER WILL STAY LEVEL SIDE-TOSIDE. Adjust the mower while tractor is parked on level ground or ddveway. Make sure tires are properly inflated (See "PRODUCT SPECIFICATIONS" on page 3 of this manual).
SERVICE TO REPLACE MOWER DRIVE AND ADJUSTMENTS BELT • MOWER DRIVE BELT REMOVAL (See Fig. 24) • Park tractor on a level surface. Engage parking brake. • Remove four screws from L.H. mandrel cover and remove cover. Remove any dirt or grass which may have accumulated around .mandrels and entire upper deck surface. • Roll belt over the top of L.H. mandrel pulley. Remove belt from idler pulleys. Remove any dirt or grass clippings which may have accumulated around mandrels and entire upper deck surface.
SERVICE AND ADJUSTMENTS li TO REPLACE (See Fig. 28) WITH PARKI_IG BRAKE "ENGAGED" MOTION DRIVE BELT Park the tractor on level surface. Engage parking brake. For assistance, there is a belt installation guide decal on bottom side of left footrest. Remove mower (See "TO REMOVE MOWER" in this section of this manual.) Disconnect clutch wire harness. NUT'A" JAM NUT OPERATING ARM • Remove clutch Iocator. • Remove upper belt keeper. • Remove belt from stationary idler and clutching idler.
SERVICE AND ADJUSTMENTS TO ADJUST MOTION (See Fig. 29) CONTROL LEVER TO ADJUST STEERING If for any reason the motion control lever will not hold its position while at a selected speed, itmay be adjusted at the fdction pack located on the right side of transmission. Park tractor on level surface. Stop tractor by turning ignition key to "OFF" position, and engage parking brake.
SERVICE AND ADJUSTMENTS TO REPLACE HEADLIGHT BULB • Raise hood. • Pull bulb holder out of the hole in the backside of the grill. • Replace bulb in holder and push bulb holder securely back into the hole in the backside of the grill. Close hood. • INTERLOCKS TO REMOVE HOOD (See Fig. 32) AND GRILL ASSEMBLY Raise hood. • Unsnap headlight wire connector. Stand in front of tractor. G rasp hood at sides, tilt toward engine and lift off of tractor. To replace, reverse above procedures.
• o SERVICE AND ADJUSTMENTS ENGINE ACCELERATION TO ADJUST THROl-I'LE (See Fig. 33 & 34) CONTROL • CABLE The throttle control has bden preset at the factory and adjustment should not be necessary. Check adjustment as described below before loosening cabte. If adjustment is necessary, proceed as follows: • With engine net running, move throttle control lever to fast (,_,) position. • Check that speed control lever isagainst step screw.
STORAGE ENGINE Immediately prepare your tractor for storage at the end of the season or if the tractor will not be used for 30 days or more. FUEL SYSTEM IMPORTANT: IT IS IMPORTANT TO PREVEN_ GUM DEPOSITS FROM FORMING IN ESSENTIAt. FUEL SYSTEM PARTS SUCHAS CARBURETOR, FUEL FILTER, FUEL HOSE, OR TANK DURING STORAGE. ALSO, EXPERIENCE INDICATES THAT ALCOHOL BLENDED FUELS (CALLED GASOHOL OR USING ETHANOL OR METHANOL) CAN ATTRACT MOISTURE WHICH LEADS TO SEPARATION AND FORMATION OF ACIDS DURING STORAGE.
TROUBLESHOOTING PROBLEM Will not start CAUSE 1, Out of fuel. 2. 3. 4, 5, 6. 7. Engine not"CHOKED" Engine flooded. Bad spark plug. Dirty air filter. Dirty fuel filter. Water in fuel. POINTS C_RRF_.TI_N 8. 9. 10. Loose or damaged widng. Carburetor out of adjustment. Engine valves out of adjustment. 8. 9. 10. Fiil fuer/'tank. See "_. _.START ENGINE" in Operation section. Wait _e_ecal m;nutes before attempting to start. Replace spark plug. Clean/replace air tilter. Replace fuel filter.
| TROUBLESHOOTING POINTS J PROBLEM CAUSE CORRECTION Engine c_ttinues to run when op_thr leaves seat with atta_;ffment clutch engaged 1. Faulty operator-safety presence control system. 1. Check widng, switches and connections. If not corrected, contact an authorized service center/ department. Poorcut-uneven 1. 2. Worn, bent orloose blade. Mower deck not level. 1. 2. Replace blade. Tighten blade bolt. Level mower deck. 3. 4. Buildup of grass, leaves, and trash under mowsr_.
TRACTOR - - MODEL-NUMBER 917.256710 SCHEMATIC O-..__Q_ow._ HEADLIGHT SWITCH (OFF) HEADL GHTS • IGNITION SWITCH POSITION CIRCUIT OFF ON START M+G B+L B + S+ L (_ CONNECTIONS CONNECTIONS NON-REMOVABLE REMOVABLE WIRING INSULATED CLIPS NOTE: IF WIRING INSULATED CLIPS WERE REMOVED FOR SERVICING OF UNIT, THEY SHOULD BE REPLACED TO PROPERLY SECURE YOUR WIRING 31 /-/'7 GFC E D _ [0 _ _ Da B .
REPAIR PARTS TRACTOR - - MODEL NUMBER 917.256710 ELEGTRICAL 40 42 41 36 35 39 19 34 33 52 31 49 - - J 45 d 3O 11 '
REPAIR PARTS TRACTOR - - MODEL NUMBER 917.256710 ELECTRICAL KEY NO. PART NO.
REPAIR PARTS TRACTOR CHASSIS -- Mt_lrDEL NUMBER 917.
REPAIR PARTS TRACTOR CI..fASSIR AND - - MODEL NUMBER 917.256710 ENCLOSURES KEY NO. PART NO.
REPAIR PARTS TRACTOR -- MODEL NUMBER 917.
REPAIR PARTS TRACTOR - - MODEL NUMBER 917.256710 DRIVE KEY NO. 1 2 3 8 9 10 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 PART NO.
REPAIR PARTS TRACTOR STEERING - - MODEL NUMBER 917.256710 ASSEMBLY / i , _~_ • ' , / # 38 _ _ !c _ ' i_--_'-1 ;-!., t _ '.
REPAIR PARTS TRACTOR STEERING - - MODEL NUMBER 917.256710 ASSEMBLY KEY NO. PART NO.
REPAIR PARTS TRACk'OR - - MODEL NUMBER 917.256710 ENGINE 13 _26 32 17 31 34 33 37 39 40 41 33 29 23 \ OPTIONAL Spark EQUIPMENT Arrester 40 "10
REPAIR PARTS TRACTOR - - MODEL NUMBER 917.25671 ENGINE KEY NO. PART NO, 1 2 132755 17720410 3 141948 4 5 6 7 8 10 11 12 13 149723 136215 136216 2751R 150176 145552 STD551131 74570512 ........ 14 15 16 17 23 24 25 26 29 31 32 33 34 37 38 13280336 13200300 11050600 17490624 128953 STD601005 138672 73610600 137180 141069 123549X 123487X 106082X 8543R 39 40 41 81 109227X 3645J 139277 128861 DESCRIPTION Control, Throttle Screw, Hex Head, Thread Cuffing 1/4-20 x 5/8 Engine, Kohler, Model No.
REPAIR PARTS TRACTOR :-"p MODEL NU MBER 917.256710 SEAT ASSEMBLY 5 21 5 11 KEY NO. PART NO. 1 2 5 5 7 10 11 12 13 14 15 16 140123 140551 145006 STD541437 124181X 140552 120068X 121246X 121248X 72050411 134300 121250X KEY NO. DESCRIPTION 18 17 21 22 24 25 27 28 Seat Bracket, Pivot, Seat Clip Push-In, Hinged Nut Spring, Seat Pan, Seat Knob, Seat Bracket, Switch Mounting Bushing, Snap, Nylon Bolt, Carriage 1/4-20 x 1-3/8 Spacer, Split Spring PART NO.
REPAIR PARTS TRACTOR - - MODEL NUMBER 917.256710 DECALS 22 18 6 3 16 7 7 4 21 10 5 / 15 19 15 I1 14 23 24 KEY NO. 1 2 3 4 5 6 7 8 9 10 11 13 14 15 16 PART NO. 138955 149516 146705 146706 151400 133644 142243 138048 146709 137537 4900J 151401 146048 149918 147137 WHEELS 2_ 25 DESCRIPTION KEY NO.
REPAIR PARTS TRACTOR MOWER - - MODEL NUMBER 917.256710 LIFT 28 27 26 23 7 8 22 21 37 30 1 3 6 13 19 13 2O 15 32 19 32 / 44 161718 20 \ 20
REPAIR PARTS TR OR MOWER - - MODEL NUMBER 917.256710 LIFT KEY NO. 1 2 3 4 5 6 7 8 10 11 12 13 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 35 36 37 38 40 41 PART NO. 136971 136968 138284 12000002 19211621 120183X 125631X 122365X 122512X 139865 139866 4939M 127218 73350800 130171 73800800 139868 3146R 19151216 12000037 110807X 19131016 137150 76020308 137167 73350600 138057 110810X 140302 73540600 120529X 123933X505 123935X 17490512 19112410 123934X NOTE: DESCRIPTION Wire Asm.
REPAIR PARTS TRACTOR MOWER - - MODEL NUMBER 917.256710 DECK 46 46 I I 47 116 117 119 _.
REPAIR PARTS TRACTOR MOWER - - MODEL NUMBER 917.256710' DECK KEY PART NO. NO, 1 3 5 6 8 9 10 145008 138457 4939M 130832 850857 10030600 14O296 11 12 13 145708 129895 137553 14 15 16 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 137152 110485X 140329 72140505 132827 145055 73680500 134753 131267 105304X 123713X 110452X 145325 19111016 131491 138776 129963 129207 137266 144945 17490_28 19131316 KEY PART DESCRIPTION NO, NO. DeckAsm., Mower 46" Bracket Asm.
REPAIR PARTS, "_RACTOR - - MODEL NUMBER 917.
REPAIR PARTS TRACTOR - - MODEL NUMBER 917.256710 HYDRO GEAR TRANSAXLE - MODEL NUMBER 310-0650 KEY PART NO. NO.
REPAIR PARTS TRACTOR KOHLER ENGINE - MODEL - - MODEL NUMBER¢_17.
REPAIR PARTS TRACTOR KOHLER ENGINE - MODEL - - MODEL NUMBER 917.256710 NUMBER MV18, TYPE NUMBER 7 8 9 AIR INTAKE KEY PART NO. NO. 1 2 X-276-7 52 755 83 3 4 5 6 7 8 9 10 52 096 35 52 123 21 231032 52 082 04 45 083 01 45 083 02 237423 X-67-98 11 12 13 14 15 52 201 06 277093 52 054 39 X-25-79 X-50-37 16 X-50-57 17 X-22-9 18 25 041 06 DESCRIPTION 1 2 3 4 PART NO.
REPAIR PARTS TRACTOR KOHLER ENGINE CRANKCASE - MODEL - - MODEL NUMBER"g17.256710 NUMBER MV18, TYPE NUMB_-B P:558560 I lg-- 17 '14 15 \ 12 $ CARBURETOR I 7 5 52
REPAIR PARTS TRACTOR KOHLI_R EN_IINE - MODEL - - MODEL NUMBER NUMBER MV18, TYPE NUMBER CRANKCASE KEY NO. PART NO. DESCRIPTION 1 2 3 X-82-2 52 468 12 82 755 16 4 5 6 7 8 52 52 52 52 52 Nut, Hex 5/16-18 (12) Washer, Flat 5/16 (12) Kit, #1 Cylinder Barrel (Includes Key Numbers 4 thru 6) Valve, Exhaust Insert, Valve Seat (2) Guide, Valve (2) Kit.
REPAIR PARTS TRACTOR KOHLER ENGINE - MODEL -- MODEL NUMBER NUMBER 917.256710 MV18, TYPE NUMBER PS58560 i =l==l= CRANKSHAFT I DIPSTICK I <::::>4 CYLINDER HEAD EXHAUST I I I S --6 1 m 7 \ ®--2 ELECTRIC STARTER I 8 @ 4w --6 54 4
REPAIR PARTS TRACTOR KOHLER ENGINE - - MODEL NUMbeR - MODEL NUMBER MV18, TYPE NUMBER CRANKSHAFT KEY NO, "l 2 PART NO. DESCRIPTION 5201493 52 468 03 52 468 04 52 468 05 Crankshaft Washer, Thrust .119/.122 (A.R.) Washer, Thrust .128/. 131 Washer, Thrust .137/.140 (A.R.) 3 4 PART NO.
SERVICE NOTES 56
SERVICE NOTES 57
SERVICE NOTES 58
SUGGESTED 'T GUIDE FOR SIGHTING SLOPES FOR SAFE OPERATION _ ONLY RIDE UP AND DOWN HILL, NOT ACROSS HILL SIGHT AND HOLD THIS LEVEL WITH SKY LINE OR TREE. 15° MAX. I Operate your Tractor up and down the face of slopes (not I greater than 15°), never across the face. Make turns gradually to prevent tipping or loss of control. Exercise extreme caution when changing direction on slopes.
I:RRFT$ SEARS OWNER'S MANUAL RN 18.0 HP TWIN CYLINDERi ELECTRIC START 46" MOWER HYDROSTATIC (AUTOMATIC) LAWN TRACTOR MODEL NO. 917.256710 Each tractor has its own model number• its own model number. Each engine has The model number for your tractor will be found on the model plate located under the seat. The model number for your engine will be found on the blower housing of the engine. All parts listed herein may be ordered from any Sears, Roebuck and Co.
