Vestil HIPM series User Manual

Page 7

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7

Air Bleed Procedure

If the forks descend very slowly or will not descend at all, air is likely trapped in the hydraulic cir-

cuit and must be bled from the system. The High Rise Lift Truck utilizes a bleeder screw at the top of
the cylinder. To bleed air from the hydraulic circuit, follow these directions.

1.)

Loosen the bleeder screw at the to of the cylinder approximately 1/4 to 1/2 turn to allow trapped
air to escape. Depressed the foot pump treadle or job the motor to push the out of the system.

2.)

When the cylinder is free of air only clear hydraulic fluid will be visible at the bleeder screw. Tighten
the hose fitting.

HYDRAULIC SCHEMATIC

ELECTRIC POWER UNIT

HYDRAULIC DIAGRAM

MANUAL FOOT PUMP

HYDRAULIC DIAGRAM

1.5" X 18" DISPLACEMENT

CYLINDER W/INTERNAL

VELOCITY FUSE

LC/TC

LC/TC

LY/FC

PRESSURE
CHECK VALVE

ADJ. PRESSURE
RELIEF VALVE

PRESS. COMPENSATED
FLOW CONTROL

LOWERING VALVE

RETURN
FILTER

10 Micron

SUCTION
FILTER

100 Micron

1 MTR.

HYD.

PUMP

1.5" x 18" DISPLACEMENT CYLINDER
W/INTERNAL VELOCITY FUSE

TWO-SPEED
FOOT PUMP

PRESSURE
CHECK VALVE

ADJ. PRESSURE
RELIEF VALVE

LOWERING VALVE

PRESSURE

CHECK VALVE

PRESS. COMPENSATED
FLOW CONTROL

1 GPM

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