HYDRALADA COMPANY LTD 702 Omahu Road Hastings, 4120 New Zealand
HYDRALADA FORK SYSTEM
From LH Drive Section and Pump
Oil to reservoir
Central Collector Block Aux Oil Cartridge
Aux oil to Cage
Relief Valve 2000psi
Tank ports
OIL TO RESERVOIR
Fork Block From RH Drive Section and Pump Flow Control Cartridge
2
1
2
1
Fork Cylinder
Fork Cartridge
Operation. The fork system hydraulic oil supply comes form the central collector on the control valve. The Aux oil cartridge when energized blocks the oil return to tank porting fluid to the pressure ports. This supply is used for the Aux oil in cage and the fork block. Fork block at rest 1 allows oil from the central collector into the fork ram to raise the forks and is held up by a check valve in the fork cartridge. To lower the forks the Fork cartridge is energised 2 allowing oil out through a flow control valve. The forks use gravity to lower.
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