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Gravely 992310 19HP-144Z Hydraulic Diagram, Model 992077, 078, 079, 080, Lift Cylinder Lift Valve

Models: 992078 21HP-148Z 992082 25HP-160Z 992080 23HP-160Z 992077 19HP-144Z 992081 25HP-152Z 992079 23HP-152Z 992311 21HP-148Z 992310 19HP-144Z

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HYDRAULIC DIAGRAM

Model 992077, 078, 079, 080, 081, 082, 310, 311

Lift

Cylinder

Lift

Valve

Return

Deck Lower

Deck Lift

Inlet

Left

Wheel

Motor

Left Pump

B A

ReverseForward

HighHigh

Pressure Pressure

Upper

Lower

Oil

Filter

Right

Pump

B A

Reverse Forward

HighHigh

Pressure Pressure

Upper

Right

Wheel

Motor

Lower

Oil

Tank

PRESSURE

RETURN

SUCTION

PD0740

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Gravely 992310 19HP-144Z manual Hydraulic Diagram, Model 992077, 078, 079, 080, Lift Cylinder Lift Valve, Left Wheel Motor

Contents

Promaster 144Z / 148Z / 152Z / 160Z Parts ManualModels 992077 19HP-144ZSERVICE AND REPLACEMENT PARTS UNAUTHORIZED REPLACEMENT PARTSTHE MANUAL PRODUCT REGISTRATIONTABLE OF CONTENTS MODELSDECALS Model 992077, 078, 079, 080, 081DANGER / PELIGRO DANGER / PELIGRODECALS Model 992077, 078, 079, 080, 081Description Decal, Instructional SteeringFRAME Model 992077, 078, 079, 080, 081, 082Description Screw, Tapping .38-16 x 1.00 Hex Washer HeadSEAT Model 992077, 078, 079, 080, 081, 082Description Nut, Locking Top Flange .31-18 077, 078, 079, 080, 081Model 992077, 078, 079, 080 ENGINE AND CLUTCHDescription see Engine and Clutch FUEL TANKS AND HOSESModel 992077 Model 992077, 078, 079, 080, 081, 082 TRANSMISSIONQty. Description MOTORS AND WHEELS Model 992077, 078, 079, 080, 081Description Wheel, Tire 23 x 10.50 - 12 Multi-TracBRAKES Model 992077, 078, 079, 080, 081, 082, 310Description PD3570LIFT VALVE AND CYLINDER Model 992077, 078, 079, 080Description Screw, Tapping .38-16 x .50 Hex Washer HeadModel 992077, 078, 079, 080, 081, 082, 310 HYDRAULIC TANK, FILTER AND PUMP TO TANK CIRCUITModel 992077, 078, 079, 080, 081, 082 DECK LIFT AND MOTORS TO PUMP CIRCUITSPD3690 HYDRAULIC DIAGRAM Model 992077, 078, 079, 080Lift Cylinder Lift Valve Left Wheel MotorCONTROL PANEL Model 992077, 078, 079, 080, 081Model 992077, 078, 079, 080, 081 STEERING CONTROLSPD3630 STEERING CONTROLS Model 992077, 078, 079, 080, 081, 082, 310DECK LIFT Model 992077, 078, 079, 080, 081, 082CONTINUITY DIAGRAM Key SwitchSeat Switch PTO SwitchModel 992077, 078, 079 ELECTRICAL SYSTEMPD3620 Model 52992077, 078, 079 ELECTRICAL SYSTEMWIRING DIAGRAM Model 992077, 078, 079, 080, 081, 082, 310MOUNTING BRACKETS 60 DeckDeck DecksDECK, DISCHARGE CHUTE AND BAFFLES Model 992077, 078, 079, 080, 081Description PD3701MOUNTING ARMS AND BELT GUARDS Model 992077, 078, 079, 080, 081, 082Description PD0770BELTS, SPINDLES, IDLERS AND BLADES DeckModel 992077, 078, 079, 080, 081, 082, 310 DeckBELTS, SPINDLES, IDLERS AND BLADES Model 992077, 078, 079, 080, 081, 082ROLLERS Model 992077, 078, 079, 080, 081, 082Description PD3780GRAVELY A Division of Ariens Company 655 West Ryan Street P.O. Box Brillion, WI 54110-0157