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OPERATOR

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MANUAL

Printed In USA

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769-05769

12.18.09

OUTDOOR

Summary of Contents for 91G Series

Page 1: ... t 4FU 6Q t 0QFSBUJPO t BJOUFOBODF t 4FSWJDF t 5SPVCMFTIPPUJOH t 8BSSBOUZ 8 3 3 0 08 4 5 36 4 4536 5 0 4 5 4 6 03 55 15 50 01 3 5 5 4 63 50 0 1 8 5 5 4 4536 5 0 4 3 46 5 1 340 63 PEFM 4FSJFT BXO 5SBDUPS 1 0 PY FOU WFOVF 5 3 0 5 3 0 769 05769 12 18 09 OUTDOOR ...

Page 2: ...time of printing Review this manual frequently to familiarize yourself with the machine JUT GFBUVSFT BOE PQFSBUJPO 1MFBTF CF BXBSF UIBU UIJT 0QFSBUPS T Manual may cover a range of product specifications for various models Characteristics and features discussed and or illustrated in this manual may not be applicable to all models The manufacturer reserves the right to change product specifications ...

Page 3: ...movable parts Never operate this machine in bare feet or sandals Be aware of the mower and attachment discharge direction 10 and do not point it at anyone Do not operate the mower without the discharge cover or entire grass catcher in its proper place Do not put hands or feet near rotating parts or under the 11 cutting deck Contact with the blade s can amputate hands and feet A missing or damaged ...

Page 4: ... up the slope or if you feel uneasy on it do not mow it For your safety use the slope gauge included as part of this manual to measure slopes before operating this machine on a sloped or hilly area If the slope is greater than 15 degrees as shown on the slope gauge do not operate this machine on that area or serious injury could result Do Mow up and down slopes not across Exercise extreme 1 cautio...

Page 5: ... When practical remove gas powered equipment c from the truck or trailer and refuel it on the ground If this is not possible then refuel such equipment on a trailer with a portable container rather than from a gasoline dispenser nozzle Keep the nozzle in contact with the rim of the fuel d tank or container opening at all times until fueling is complete Do not use a nozzle lock open device Extingui...

Page 6: ...Agency EPA this product has an Average Useful Life of seven 7 years or 270 hours of operation At the end of the Average Useful Life have the machine inspected annually by an authorized service dealer to ensure that all mechanical and safety systems are working properly and not worn excessively Failure to do so can result in accidents injuries or death Do not modify engine To avoid serious injury o...

Page 7: ... deck Contact with the blade s can amputate hands and feet WARNING THROWN OBJECTS This machine may pick up and throw and objects which can cause serious personal injury WARNING THROWN OBJECTS This machine may pick up and throw and objects which can cause serious personal injury BYSTANDERS Keep bystanders helpers children and pets at least 75 feet from the machine while it is in operation WARNING S...

Page 8: ...t s a 1 5 s l o p e 15 Use this page as a guide to determine slopes where you may not operate safely WARNING Do not operate your lawn mower on such slopes Do not mow on inclines with a slope in excess of 15 degrees a rise of approximately 2 1 2 feet every 10 feet A riding mower could overturn and cause serious injury Operate riding mowers up and down slopes never across the face of slopes ...

Page 9: ...the hydrostatic relief valve Doing so will result in serious damage to the tractor s transmission Shipping Brace Removal WARNING Make sure the lawn tractor s engine is off set the parking brake and remove the ignition key before removing the shipping brace Locate the shipping brace if present and warning tag 1 found on the right side of the cutting deck See Figure 3 2 While holding the discharge c...

Page 10: ...ur unit may be over inflated for shipping purposes Reduce the tire pressure before operating the tractor Recommended operating tire pressure is approximately 10 p s i for the rear tires 14 p s i for the front tires Check sidewall of tire for maximum p s i Setting the Deck Gauge Wheels Move the tractor on a firm and level surface preferably pavement and proceed as follows Select the height position...

Page 11: ...into place Gas and Oil Service the engine with gasoline and oil as instructed in the separate engine manual packed with your tractor Read instructions carefully The gasoline tank is located under the hood Do not overfill WARNING Use extreme care when handling gasoline Gasoline is extremely flammable and the vapors are explosive Never fuel the machine indoors or while the engine is hot or running E...

Page 12: ...hat the UISPUUMF DIPLF DPOUSPM JT BMXBZT JO UIF 45 rabbit position JHVSF Brake Pedal The brake pedal is located on the left front side of the tractor along the running board The brake pedal can be used for sudden stops or setting the parking brake NOTE The brake pedal must be fully depressed to activate the safety interlock switch when starting the tractor Seat Adjustment Lever not seen The seat a...

Page 13: ...ems indicator monitor displays the battery s output in volts on its LCD for approximately five seconds after which it displays an hour glass and the hours of tractor operation Once the tractor is started the monitor continually displays an hour glass and the hours of tractor operation on its LCD NOTE Hours of tractor operation are recorded any time the ignition key is rotated out of the STOP posit...

Page 14: ...ngage the power to the cutting deck NOTE 5IF 150 MBEF OHBHF knob must be in the disengaged OFF position when starting the engine when traveling in reverse and if the operator leaves the seat Parking Brake Cruise Control Lever PDBUFE JO UIF DFOUFS PG UIF USBDUPS T EBTI QBOFM CFMPX UIF TUFFSJOH XIFFM UIF 1BSLJOH SBLF SVJTF POUSPM MFWFS JT VTFE to engage the parking brake and the cruise control Refer...

Page 15: ...lace the PTO Blade Engage lever knob in the 2 disengaged OFF position Engage the tractor s parking brake 3 Activate the choke control by moving the throttle choke 4 control all the way forward into the choke position Turn the ignition key clockwise to the START position 5 After the engine starts release the key It will return to the NORMAL MOWING position CAUTION Do NOT hold the key in the START p...

Page 16: ...e is not recommended 8 3 Use extreme caution while operating UIF USBDUPS JO UIF 3 7 34 65 0 0 MXBZT look down and behind before and while backing Do not operate the tractor when children or others are around Stop the tractor immediately if someone enters the area 5P VTF UIF 3 7 34 65 0 0 NOTE The operator MUST be seated in the tractor seat Start the engine as previously instructed on the previous ...

Page 17: ...M TIPVME SFNBJO JO UIF EPXO QPTJUJPO G JU EPFTO U UIF QBSLJOH CSBLF JT not engaged 3FQFBU TUFQT UP FOHBHF UIF QBSLJOH CSBLF To disengage the parking brake lightly press the brake pedal 8 3 FWFS MFBWF B SVOOJOH NBDIJOF VOBUUFOEFE MXBZT EJTFOHBHF 150 TFU QBSLJOH brake stop engine and remove key to prevent unintended starting Cruise Control 8 3 FWFS FOHBHF UIF DSVJTF DPOUSPM MFWFS while traveling in ...

Page 18: ...n using the cutting deck with your tractor WARNING Plan your mowing pattern to avoid discharge of materials toward roads sidewalks bystanders and the like Also avoid discharging material against a wall or obstruction which may cause discharged material to ricochet back toward the operator Do not mow at high ground speed especially if a mulch kit t or grass collector is installed Do not cut the gra...

Page 19: ...e interval To complete an oil change proceed as follows Run the engine for a few minutes to allow the oil in the 1 crankcase to warm up Warm oil will flow more freely and carry away more of the engine sediment which may have settled at the bottom of the crankcase Use care to avoid burns from hot oil 0QFO UIF USBDUPS T IPPE BOE MPDBUF UIF PJM ESBJO QPSU PO UIF 2 right side of the engine Maintenance...

Page 20: ...static Transmission The hydrostatic transmission is sealed at the factory and is maintenance free The fluid level cannot be checked and the fluid cannot be changed Battery 5IF CBUUFSZ JT TFBMFE BOE JT NBJOUFOBODF GSFF DJE MFWFMT DBOOPU be checked and fluid can not be added MXBZT LFFQ UIF CBUUFSZ DBCMFT BOE UFSNJOBMT DMFBO BOE t free of corrosive build up GUFS DMFBOJOH UIF CBUUFSZ BOE UFSNJOBMT BQQ...

Page 21: ...FDL XJUI UIF 4NBSU FU TZTUFN SFUVSO UP UIF PQFSBUPS T QPTJUJPO BOE FOHBHF UIF 150 FFQ UIF DVUUJOH deck running for a minimum of two minutes allowing the underside of the cutting deck to thoroughly dry Lubrication 8 3 FGPSF MVCSJDBUJOH SFQBJSJOH PS JOTQFDUJOH BMXBZT EJTFOHBHF 150 TFU QBSLJOH brake stop engine and remove key to prevent unintended starting Front Wheels Each of the front wheel axles a...

Page 22: ...hould be between 1 4 inch and 3 8 inch lower than the rear of the deck Adjust if necessary as follows Park the tractor parked on a firm level surface and place 1 the deck lift lever in the top notch Rotate the blade nearest the discharge chute so that it is 2 parallel with the tractor Measure the distance from the front of the blade tip to the 3 ground and the rear of the blade tip to the ground T...

Page 23: ... DBO CF QFSGPSNFE EKVTU JG OFDFTTBSZ BT GPMMPXT With the tractor parked on a firm level surface place the 1 deck lift lever in the top notch highest position and rotate both blades so that they are perpendicular with the tractor Measure the distance from the outside of the left blade 2 tip to the ground and the distance from the outside of the SJHIU CMBEF UJQ UP UIF HSPVOE PUI NFBTVSFNFOUT UBLFO T...

Page 24: ... easily SFNPWFE GSPN UIF FMFDUSJD 150 DMVUDI DBSFGVMMZ JOTFSU B 3 8 drive ratchet wrench set to loosen into the square hole found in the EFDL JEMFS CSBDLFU BOE QJWPU JU UPXBSE UIF USBDUPS T MFGU TJEF UP SFMJFWF UFOTJPO PO UIF CFMU 4FF JH 8 3 WPJE QJODIJOH JOKVSJFT FWFS QMBDF your fingers on the idler spring or between the belt and a pulley while removing the belt Looking at the cutting deck from t...

Page 25: ...BOHFSPVT CZ not disengaging completely For a proper working machine use factory approved belts MM CFMUT PO ZPVS USBDUPS BSF TVCKFDU UP XFBS BOE TIPVME CF replaced if any signs of wear are present To change or replace the deck belt on your tractor proceed as follows Remove the deck as previously instructed 1 Remove the belt covers by removing the hex washer 2 TDSFXT UIBU GBTUFO UIFN UP UIF EFDL 4FF...

Page 26: ...er to 1 Cutting Deck Removal earlier in this section then gently flip the deck over to expose its underside 1MBDF B CMPDL PG XPPE CFUXFFO UIF DFOUFS EFDL IPVTJOH 2 baffle and the cutting blade to act as a stabilizer 4FF JH Remove the hex flange nut that secures the blade to the 3 TQJOEMF BTTFNCMZ 4FF JH To properly sharpen the cutting blades remove equal amounts of metal from both ends of the blad...

Page 27: ...as on a water heater space heater furnace clothes dryer or other gas appliances 65 0 8IFO DIBSHJOH ZPVS USBDUPS T CBUUFSZ use only a charger designed for 12V lead acid CBUUFSJFT 3FBE ZPVS CBUUFSZ DIBSHFS T 0XOFS T BOVBM QSJPS UP DIBSHJOH ZPVS USBDUPS T CBUUFSZ MXBZT GPMMPX JUT JOTUSVDUJPOT BOE IFFE JUT XBSOJOHT If your tractor has not been put into use for an extended period of time charge the bat...

Page 28: ...damaged Drain fuel tank Refill with clean fresh 5 gasoline Replace air cleaner paper element or clean 6 foam precleaner Engine overheats Engine oil level low 1 JS GMPX SFTUSJDUFE 2 Fill crankcase with proper amount and 1 weight of oil Clean grass clippings and debris from around 2 UIF FOHJOF T DPPMJOH GJOT BOE CMPXFS IPVTJOH Engine hesitates at high 31 Spark plug s gap too close 1 Remove spark plu...

Page 29: ...or use with any type of ground engaging attachments e g tiller or moldboard plow Use of this type of equipment WILL void the tractor s warranty Model Number Description 19A30005100 Mulch Plug 46 19A70002000 Mulch Kit 42 OEM 190 032 Snow Thrower 42 19A30003100 Twin Bagger OEM 190 215 Wheel Weights 190 679 101 Bumper OEM 190 833 46 Snow Blade OEM 190 916 Tire Chains 20 x 10 OEM 19A 218 Rear Bracket ...

Page 30: ...eel Front 734 0973 Deck Wheel Rear optional 725 1707D Battery 751 0603A Fuel Tank Cap NOTE This Operators Manual covers a range of product specifications for various models Characteristics and features discussed and or illustrated in this manual may not be applicable to all models The manufacturer reserves the right to change product specifications designs and equipment without notice and without ...

Page 31: ...ines HOJUJPO FZ JTDIBSHF IVUF TTFNCMZ w w NOTE PXOMPBE B DPNQMFUF 1BSUT BOVBM SFGFS UP DVTUPNFS TVQQPSU PO QBHF F TVSF UP IBWF ZPVS NPEFM OVNCFS BOE TFSJBM number ready These can be found on the model plate located under the seat Refer to page 2 for more information regarding locating your model and serial numbers SECTION 9 REPLACEMENT PARTS ...

Page 32: ... Inc s application for certification The warranty period begins on the date the lawn mower is delivered to an ultimate purchaser or first placed into service The warranty period is two years Subject to certain conditions and exclusions as stated below the warranty on emission related parts is as follows 1 Any warranted part that is not scheduled for replacement as required maintenance in the writt...

Page 33: ...stem s OLD START ENRICHMENT SYSTEM SOFT CHOKE s ARBURETOR AND INTERNAL PARTS s UEL PUMP s UEL TANK 2 Air Induction System s IR CLEANER s NTAKE MANIFOLD 3 Ignition System s 3PARK PLUG S s AGNETO IGNITION SYSTEM 4 Exhaust System s ATALYTIC CONVERTER s 3 2EED VALVE 5 Miscellaneous Items Used in Above System s 6ACUUM TEMPERATURE POSITION TIME SENSITIVE VALVES AND SWITCHES s ONNECTORS AND ASSEMBLIES 6 ...

Page 34: ...arpening tune ups brake adjustments clutch adjustments deck adjustments and normal deterioration of the exterior finish due to use or exposure d Service completed by someone other than an authorized service dealer e MTD does not extend any warranty for products sold or exported outside of Canada including possessions and territories f Replacement parts that are not genuine MTD parts g Transportati...

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