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Yanmar YM2000 Service Manual

Yanmar YM2000
16 pages
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DIESEL
TmACTQm
((HYDRAULIC
DEVICE))
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Yanmar YM2000 Specifications

General IconGeneral
Engine TypeDiesel
Horsepower20 HP
TypeCompact Utility Tractor
CoolingLiquid-cooled
Drive2WD
Hydraulic SystemOpen center
PTO Speed540 RPM
Transmission Gears6 forward, 2 reverse
PTO Power18 hp
Weight1, 300 kg

Summary

Hydraulic Piping System

Hydraulic System Nomenclature

Raising the Lift Arm

Lowering the Lift Arm

Control Valve Neutral Position

Lift Arm Fully Raised

Describes hydraulic fluid flow and cylinder state when the lift arm is fully raised and the control valve is neutral.

Lift Arm Fully Lowered

Details hydraulic fluid flow and cylinder state when the lift arm is fully lowered and the control valve is neutral.

Relief Valve Operation

Work Under Normal Conditions

Explains relief valve operation when fluid pressure exceeds the specified value under normal conditions, protecting the circuit.

Work Under a Sudden Shock

Details relief valve activation due to sudden shock and overload pressure, preventing damage to hydraulic components.

Implement Operation

For Outlet B

Explains finding the neutral position and using hydraulic pressure outlet B for operating implements.

For Outlet A & B

Describes using a five-port, three-action valve for outlets A & B and connecting the tank port to the reservoir.

Troubleshooting Guide

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