TECHNICAL MANUAL

1 TECHNICAL MANUALL itho in DeereLawn & Grounds Care DivisionF911, F915, F925, F932and F935 Front MowersSerial No. (010001 )TM1487 (01 OCT95)Replaces TM1487 (15 JAN93)FOREWORDThis MANUAL is written for an experienced tools required in performing certain servicework are identified in this MANUAL and arerecommended for with safety: Read the safety messages in theintroduction of this MANUAL and the cautionspresented throughout the text of the is the safety-alert symbol. When you seethis symbol on the machine or in this MANUAL ,be alert to the potential for personal manuals are divided in two parts: repairand diagnostics. Repair sections tell how to repair thecomponents. Diagnostic sections help you identify themajority of routine failures is organized in groups for the variouscomponents requiring service instruction. At thebeginning of each group are summary listings of allapplicable essential tools, service equipment andtools, other materials needed to do the job, andservice parts 10, Group 15 Repair Specifications, consistof all applicable specifications, near tolerances andspecific torque values for various components oneach individual , binder labels, and tab sets can be orderedby John Deere dealers direct from the John DeereDistribution Service MANUAL is part of a total product MANUALS REFERENCETECHNICAL MANUALS MACHINE SERVICECOMPONENT MANUALS COMPONENT SERVICEF undamentals of Service (FOS) Manuals cover basictheory of operation, fundamentals of troubleshooting,general maintenance, and basic type of failures andtheir causes.

2 FOS Manuals are for training newpersonnel and for reference by Manuals are concise guides for specificmachines. TECHNICAL manuals are on-the-job guidescontaining only the vital information needed fordiagnosis, analysis, testing, and TECHNICAL Manuals are concise serviceguides for specific components. Component technicalmanuals are written as stand-alone manuals coveringmultiple machine ,TM1487,IFC -19-21 NOV90 IntroductionTM1487 (21 NOV90) 900 Series010395 InformationNOTES CONCERNING THIS REVISION OF TM1487:The 900 Series Front Mowers have three serial number ranges that dictate the correct repair and other procedures to be followed: ( 010001 120000)Units with a PTO engagement lever, a water-in-fuel indicator (diesel only) and without a Park Lock Switch ( 120001 150000)Units with a PTO engagement lever and a Park Lock Switch ( 150001 )Units with a PTO Solenoid Switch, a PTO Solenoid and Relay, and a Park Lock SwitchNot all pages have been changed to include references to the F925, please refer to the Contents Page for each Section to find the repair procedures or other information for the F925.

3 Otherwise, for all repair information concerning the F925, use the following as a guide: Same Fuel system as the F915 All other procedures are the same as the F935 SERIAL NUMBER RANGES WITH AFFECTED CHANGESF911 1991 1992 with s 10001 120000 have a PTO engagement lever. 1993 1995 with s 120001 150000 have a park lock switch added. 1995 1996 with s 150001 150081 have a wiring harness with integrated diodes and a new PTO actuation system. 1995 1996 with s starting at 150082 have a wiring harness with a diode pack and a new PTO actuation 1987 1989 with s 420001 750000 are covered by TM1350. 1990 1992 with s 010001 120000 have a PTO engagement lever. 1993 1995 with s 120001 150000 have a park lock switch 1993 1995 with s 120001 150000 have a park lock switch. 1995 1996 with s 150001 150089 have a wiring harness with integrated diodes and a new PTO actuation system. 1995 1996 with s starting at 150090 have a wiring harness with a diode pack and a new PTO actuation 1988 1989 with s 475001 750000 have no TECHNICAL MANUAL available.

4 1990 1992 with s 010001 120000 have a PTO engagement lever. 1993 1995 with s 120001 150000 have a park lock switch added. 1995 1996 with s 150001 150060 have a wiring harness with integrated diodes and a new PTO actuation system. 1995 1996 with s starting at 150061 have a wiring harness with a diode pack and a new PTO actuation 1986 1989 with s 360001 750000 are covered by TM1350. 1990 1992 with s 010001 120000 have a PTO engagement lever and a water-in-fuel indicator. 1993 1995 with s 120001 150000 have a park lock switch added and no water-in-fuel indicator. 1995 1996 with s 150001 150228 have a wiring harness with integrated diodes and a new PTO actuation system. 1995 1996 with s starting at 150229 have a wiring harness with a diode pack and a new PTO actuation 10 GENERAL INFORMATIONG roup 05 SafetyGroup 10 General SpecificationsGroup 15 Repair SpecificationsGroup 20 Fuels and LubricantsGroup 25 Serial Number LocationsGroup 30 Features & AttachmentsSECTION 20 ENGINE REPAIRG roup 05 Engine F911 Group 06 Engine F915/F925/F935 Group 07 Engine F932 Group 10 Cooling SystemSECTION 30 FUEL AND AIR REPAIRG roup 05 Fuel System F911/F932 Group 06 Fuel System F915/F925/F935 Group 10 Air SystemSECTION 40 ELECTRICAL REPAIRG roup 05 Alternator F911 Group 06 Alternator F915 Group 07 Alternator F932 Group 08 Alternator F925/F935 Group 10 StarterGroup 15 Ignition and ChargingSystemGroup 20 PTO ClutchGroup 25 Wiring HarnessSECTION 50 POWER TRAIN REPAIRG roup 05 TransmissionGroup 10 DifferentialGroup 15 AxlesGroup 20 Drive ShaftGroup 25 PTO ShaftGroup 30 Speed Control LinkageSECTION 60 STEERING AND BRAKE REPAIRG roup 05 Steering RepairGroup 10

5 Brake RepairGroup 15 Rear AxleSECTION 70 HYDRAULIC REPAIRG roup 05 Hydraulic Control ValveGroup 10 Hydraulic Lift CylindersGroup 15 Weight Transfer ValveGroup 20 Oil CoolerSECTION 80 MISCELLANEOUS REPAIRG roup 05 Rear WheelsGroup 10 Mower Deck RepairGroup 15 ROLL-GARDSECTION 210 TEST & ADJUSTMENTSPECIFICATIONS/OPERATIONALCHEC KOUT PROCEDUREG roup 05 Test and Adjustment SpecificationsGroup 10 Operational Checkout ProceduresSECTION 220 ENGINE OPERATION, TESTSAND ADJUSTMENTS F911 Group 05 Component LocationGroup 10 theory of OperationGroup 15 Diagnosis, Tests, and AdjustmentsSECTION 220 ENGINE OPERATION, TESTSAND ADJUSTMENTS F915/F925/F935 Group 05 Component LocationGroup 10 theory of OperationGroup 15 Diagnosis, Tests, and AdjustmentsSECTION 220 ENGINE OPERATION, TESTSAND ADJUSTMENTS F932 Group 05 Component LocationGroup 10 theory of OperationGroup 15 Diagnosis, Tests, and AdjustmentsSECTION 230 FUEL/AIR OPERATION, TESTS & ADJUSTMENTS F911 Group 05 Component LocationGroup 10 theory of OperationGroup 15 Diagnosis, Tests, and AdjustmentsContinued on next pageiiAll information, illustrations and specifications in this MANUAL are based on the latest information available at the time of publication.

6 The right is reserved to make changes at any time without 1995 DEERE & COMPANYM oline, IllinoisAll rights reservedA John Deere ILLUSTRUCTION ManualPrevious EditionsCopyright 1995 Deere & CompanyContentsSECTION 231 FUEL/AIR OPERATION, TESTS & ADJUSTMENTS F915/F925/F935 Group 05 Component LocationGroup 10 theory of OperationGroup 15 Diagnosis, Tests, and AdjustmentsSECTION 232 FUEL/AIR OPERATION, TESTS & ADJUSTMENTS F932 Group 05 Component LocationGroup 10 theory of OperationGroup 15 Diagnosis, Tests, and AdjustmentsSECTION 240 ELECTRICAL OPERATION, TESTS & ADJUSTMENTS F911 Group 05 Component LocationGroup 10 theory of OperationGroup 15 Diagnosis, Tests, and AdjustmentsGroup 20 Electrical SchematicSECTION 241 ELECTRICAL OPERATION, TESTS & ADJUSTMENTS F915/F925/F935 Group 05 Component LocationGroup 10 theory of OperationGroup 15 Diagnosis, Tests, and AdjustmentsGroup 20 Electrical SchematicSECTION 242 ELECTRICAL OPERATION, TESTS & ADJUSTMENTS F932 Group 05 Component LocationGroup 10 theory of OperationGroup 15 Diagnosis, Tests, and AdjustmentsGroup 20 Electrical SchematicSECTION 250 POWER TRAIN OPERATION, TESTS & ADJUSTMENTS F932 Group 05 Component LocationGroup 10 theory of OperationGroup 15 Diagnosis, Tests, and AdjustmentsSECTION 260 POWER TRAIN OPERATION, TESTS & ADJUSTMENTSG roup 05 Component LocationGroup 10 theory of OperationGroup 15 Diagnosis, Tests, and AdjustmentsSECTION 260 STEERING & BRAKES OPERATION, TESTS & ADJUSTMENTSG roup 05 Component LocationGroup 10 theory of OperationGroup 15 Diagnosis, Tests, and AdjustmentsGroup 20 System Schematic DiagramSECTION 299 FABRICATED TOOLSG roup 00 Dealer Fabricated ToolsiiiContentsPagePageSection 10 GENERAL INFORMATIONG roup 05 Safety.

7 10-05-1 Group 10 General SpecificationsMachine SpecificationsF911 and F932 ..10-10-1F915, F925 and F935..10-10-3 Group 15 Repair SpecificationsF911..10-15-1F915..10-15-5 F932..10-15-9F925, F935..10-15-13 Inch Series Torque Chart..10-15-17 Metric Series Torque Chart ..10-15-18 Service Recommendations For O-RingBoss Fittings..10-15-19 Service Recommendations For Flat FaceO-Ring Seal Fittings ..10-15-20 Group 20 Fuels and LubricantsGasoline..10-20-1 Diesel Fuel..10-20-2 Diesel Fuel Storage ..10-20-2 Hydrostatic Drive OilNorth America..10-20-3 Europe ..10-20-4 Grease..10-20-5 Group 25 Serial Number LocationsSerial Numbers ..10-25-1 Product Identification Number ..10-25-1 Engine Serial Number ..10-25-2 Transmission Serial Number ..10-25-2 Differential Serial Number ..10-25-3 Control Valve Serial Number ..10-25-3 Group 30 Features and AttachmentsStandard FeaturesF911.. 10-30-1F915/F925/F932/F935.. 10-30-2 New Features F915/F925/F932/F935 .. 10-30-3 OptionsFactory.. 10-30-4 Field Installed.

8 10-30-4 Attachments .. 10-30-510-1 ContentsTM1487 (21 NOV90) 10-2900 Series01039510 RECOGNIZE SAFETY INFORMATIONThis is the safety-alert symbol. When you see thissymbol on your machine or in this MANUAL , be alert tothe potential for personal recommended precautions and safe -UN-07 DEC88 UNDERSTAND SIGNAL WORDSA signal word DANGER, WARNING, or CAUTION isused with the safety-alert symbol. DANGER identifies themost serious or WARNING safety signs are located nearspecific hazards. General precautions are listed onCAUTION safety signs. CAUTION also calls attention tosafety messages in this -19-30 SEP88 FOLLOW SAFETY INSTRUCTIONSC arefully read all safety messages in this MANUAL and onyour machine safety signs. Keep safety signs in goodcondition. Replace missing or damaged safety signs. Besure new equipment components and repair parts includethe current safety signs.

9 Replacement safety signs areavailable from your John Deere how to operate the machine and how to usecontrols properly. Do not let anyone operate your machine in proper working modifications to the machine may impairthe function and/or safety and affect machine you do not understand any part of this MANUAL andneed assistance, contact your John Deere -UN-23 AUG88DX,ALERT -19-04 JUN90DX,SIGNAL -19-04 JUN90DX,READ -19-04 JUN90 Group 05 SafetyTM1487 (21 NOV90) 10-05-1900 Series01039510051 HANDLE FLUIDS SAFELY AVOID FIRESWhen you work around fuel, do not smoke or work nearheaters or other fire flammable fluids away from fire hazards. Do notincinerate or puncture pressurized sure machine is clean of trash, grease, and not store oily rags; they can ignite and -UN-23 AUG88 PREVENT BATTERY EXPLOSIONSKeep sparks, lighted matches, and open flame awayfrom the top of battery.

10 Battery gas can check battery charge by placing a metal objectacross the posts. Use a volt-meter or not charge a frozen battery; it may explode. Warmbattery to 16 C (60 F).TS204 -UN-23 AUG88 PREPARE FOR EMERGENCIESBe prepared if a fire a first aid kit and fire extinguisher emergency numbers for doctors, ambulanceservice, hospital, and fire department near -UN-23 AUG88DX,FLAME -19-04 JUN90DX,SPARKS -19-04 JUN90DX,FIRE2 -19-04 JUN90 SafetyTM1487 (21 NOV90) 10-05-2900 Series01039510052 PREVENT ACID BURNSS ulfuric acid in battery electrolyte is poisonous. It isstrong enough to burn skin, eat holes in clothing, andcause blindness if splashed into the hazard by:1. Filling batteries in a well-ventilated Wearing eye protection and rubber Avoiding breathing fumes when electrolyte is Avoiding spilling or dripping Use proper jump start you spill acid on yourself:1.