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Model 992073, 074
Page 1: ...Promaster 260Z 272Z 8 04 Printed in USA Service Manual 992036 037 038 039 309 992073 074 075 076 318 319...
Page 2: ...tery 19 Basic Engine Maintenance 20 Belts 20 PTO Belt Removal 21 Tires 22 Mower Drive Belt Removal 22 Sharpening Mower Blade 22 Steering Control Neutral Adjustment 23 Adjusting Unit To Track Straight...
Page 3: ...imi Nazwa handlowa Nome da Marca Gravely Model Mod le Modell Model Model Modello Modelo Modell Modell Malli Model Modelo 992318 992319 Cutting Width cm Largeur de coupe cm Schnittbreite cm Maaibreedte...
Page 4: ...SA Signature Signature Unterschrift Handtekening Underskrift Firma Firma Signatur Namnteckning Allekirjoitus Podpis Assinatura 11 24 2003 Date Date Datum Datum Dato Data Fecha Dato Datum P iv ys Data...
Page 5: ...please fill out sign and return the product registration card to Gravely UNAUTHORIZED REPLACEMENT PARTS Use only Gravely replacement parts The replacement of any part on this unit with anything other...
Page 6: ...n and others away from unit while operating Never direct discharge toward other people Thrown objects can cause injury Look down and behind before and while backing Never carry children Go up and down...
Page 7: ...ople Keep people away from unit while operating Shut off engine remove key and read manual before you adjust or repair unit NO STEP Always keep feet away from rotating parts 3 WARNING Always stand cle...
Page 8: ...eur sur le canal d ejection ou sans le bac monte No operar segadora a menos que las defensas esten en posicion de operacion o el recogedor este fijo 07742300B DANGER PELIGRO Read the operator s manual...
Page 9: ...T operate unit if safety interlock is damaged or disabled Start and operate unit only when seated in operator s position Steering control levers must be in neutral PTO disengaged and parking brake set...
Page 10: ...in fuel tank indoors Replace fuel cap securely and clean up spilled fuel Never fill containers inside a vehicle or on a truck or trailer bed with a plastic liner Always place containers on the ground...
Page 11: ...as stated contact your Gravely dealer for repairs NOTE For all models when parking brake is engaged steering levers are locked in neutral For models 992318 and 319 engine must not start or run with h...
Page 12: ...tarter Electric Battery 12 Volt Power Take Off Electric PTO Clutch Brake Fuel Fuel Type Refer to Engine Manual Fuel Tank Capacity gal L 14 53 Transmission Type Hydrostatic Drive Transmission Oil Mobil...
Page 13: ...l Starter Electric Battery 12 Volt Maintenance Free Power Take Off Electric PTO Clutch Brake Fuel Fuel Type Refer to Engine Manual Fuel Tank Capacity gal L 14 53 Transmission Type Hydrostatic Drive Tr...
Page 14: ...linder Stops 14 Mower Deck with Chute Deflector 15 Belt Cover 16 Foot Board Latch 17 Cylinder Stop Storage Post 18 Headlights 19 PTO Power Take Off Switch 20 Ignition Switch 21 Oil Pressure Light 22 B...
Page 15: ...faces with automotive type wax Follow Engine Manual Maintenance Schedule Perform scheduled engine maintenance Refer to Engine Manual for detailed instructions Check Cooling System IMPORTANT Do not use...
Page 16: ...service is complete lower hood and secure with hood latches Figure 4 MOVING UNIT MANUALLY Figure 5 IMPORTANT Never tow unit Every 400 Hours Change Coolant 992075 076 318 319 See Changing Coolant on p...
Page 17: ...se ignition key wait and then repeat Once engine has started ignition key will return to the Run 2 position Figure 6 To shut off 1 Disengage PTO 2 Set parking brake 3 Turn ignition key to Off 1 positi...
Page 18: ...FUEL TANK Add fuel to the tank as needed IMPORTANT Refer to Engine Manual for correct type and grade of fuel See Specifications on page 31 for fuel tank capacity To add fuel to the fuel tank 1 Refuel...
Page 19: ...le Figure 9 3 Remove battery hold down bracket and battery from unit Install 1 Install battery on unit with battery hold down bracket 2 Connect positive cable first then negative cable 3 Coat terminal...
Page 20: ...op of the battery The battery must be recharged monthly or when the cell specific gravity reads less than 1 255 Before reinstalling the battery in the spring it should always be fully recharged BASIC...
Page 21: ...ed from blade spindle pulleys prior to removing mower drive belt The PTO belt does not need to be removed from electric clutch 1 Remove PTO belt from blade spindle pulleys 2 Remove mower drive belt fr...
Page 22: ...s Figure 15 Removal Figure 14 1 Block mower blades to prevent rotation Figure 14 2 Remove bolts washers and mower blades from spindle shafts Installation Figure 14 1 Install mower blades washers and b...
Page 23: ...g when steering levers are in neutral adjust as follows Adjusting Steering Levers to Line Up Match Figure 16 1 Place hood in the full service position 2 Loosen damper ball nut on the same side as stee...
Page 24: ...eps 7 though 12 ADJUSTING UNIT TO TRACK STRAIGHT Check and adjust tire pressure Increase pressure on side unit tracks to DO NOT exceed maximum recommended tire pressure See Specifications on page 12 f...
Page 25: ...se to increase the distance until there is 1 16 to 1 8 in 1 5 to 3 1 mm between return nuts and trunnion 5 Tighten return nuts together MOWER DECK REMOVAL Removal Figure 20 NOTE Only remove PTO belt f...
Page 26: ...ignition key 4 Loosen the locknuts on the side where the chains are slack and slide the bolt down the slot until the chains are tight 5 Tighten the locknuts 6 Lift mower and remove blocks 7 Measure he...
Page 27: ...on pipe 2 Bad electrical connection 23 Sticking throttle restricted movement 44 Choked oil filter 3 Faulty starter motor 24 Exhaust pipe restriction 45 Bad solenoid switch 4 Incorrect grade of lubrica...
Page 28: ...sition see Service Positions on page 16 2 Check coolant reservoir Coolant should be between the low and full marks with engine cold 3 If coolant is below the low mark remove cap and add coolant to the...
Page 29: ...er neck with coolant 14 Fill coolant reservoir to the FULL mark IMPORTANT Air in cooling system must be removed 15 Install radiator cap 16 Start engine warm engine up thoroughly and then shut off engi...
Page 30: ...filter another 1 2 turn NOTE See Specifications on page 12 for hydraulic system capacity 6 Add 15W 50 synthetic oil as needed to hydraulic reservoir Do not overfill 7 Install cap dipstick 8 Start engi...
Page 31: ...le unit down for a few seconds and shut off engine 13 The acceptable flow drop would be less than 1 GPM difference between the low and high pressure settings If flow drop is greater than 1 GPM the hyd...
Page 32: ...low markings Figure 28 HYDRAULIC DECK LIFT PRESSURE TEST Use this test for trouble shooting the hydraulic lift system if the lift becomes sluggish or loss of lift occurs 1 Place unit into the service...
Page 33: ...33 6 The hydraulic system is self bleeding Check hydraulic fluid level after running the engine The dipstick should read between the high and low markings Figure 29 Lift Valve...
Page 34: ...34 HYDRAULIC DIAGRAM Models 992073 074 075 076 318 319 PD0630...
Page 35: ...linder Oil Filter Left Wheel Motor Upper Lower Right Wheel Motor Upper Lower PRESSURE RETURN SUCTION Right Pump Left Pump Oil Tank Deck Lower Deck Lift Lift Valve Reverse High Pressure Forward High Pr...
Page 36: ...belts 4 Install blade using flat washer lock washer and bolt Torque to 70 ft lbs 95 Nm ANTI SCALP ROLLERS All of the anti scalp rollers are maintenance free If any roller shaft or weldment shows exce...
Page 37: ...t Figure 31 To Replace the Caster Wheel 1 Support the axle to keep the wheel off the ground 2 Remove dust cap and spindle nut at top of spindle 3 Lift axle to allow caster spindle to drop out of sleev...
Page 38: ...an the part would cost and the results may not be as good ELECTRICAL MEASUREMENTS In many electrical circuits there is some visible effect which indicates that the circuit is functioning properly A sw...
Page 39: ...he switches are secure and that a switch is being activated properly before performing electrical test on switches Safety switches on speed selector and clutch levers may be out of adjustment and not...
Page 40: ...voltmeter The voltage should read 12 volts with the ignition switch in the start position If no voltage appears the defect is in the start circuit If the voltage is correct turn off the power and che...
Page 41: ...an external part It may also contain a regulator to prevent overcharging the battery Servicing of rectifiers built into the engine should be done by an approved engine manufacturer s service center Su...
Page 42: ...S1 A RED VIOLET BROWN WHITE STARTER SOLENOID RELAY START RELAY 30 86 85 87 87a 30 86 85 87 87a BLACK BLACK BLACK PTO CLUTCH BLACK WHITE 1 2 SEAT SWITCH 1 2 YELLOW RED WHITE BLACK OIL PRESSURE LIGHT FU...
Page 43: ...GE OIL PRESSURE LIGHT ALTERNATOR BATTERY SOLENIOD STARTER KEY SWITCH GLOW PLUG RELAY AUXULIARY POWER SUPPLY SEAT SWITCH WATER TEMP GAUGE WATER TEMP SENDER ENGINE OIL PRESSURE SWITCH ENGINE RED BLUE WH...
Page 44: ...44 Model 992073 074...
Page 45: ...45 Models 992075 076 318 319...
Page 46: ...Refer to Engine Manual or see your Gravely Dealer Battery light does not light up when starting engine 1 Discharged battery 1 Charge battery see Charging the Battery on page 20 Oil pressure light is...
Page 47: ...regular schedule See the Owner s Manual 3 Check the mower deck for clogging or debris Check the electrical system to the clutch for damage or wear 4 See your Gravely Dealer Unit does not drive 1 Parki...
