REPAIR OF HYDRAULIC SYSTEM
Section I. GENERAL DESCRIPTION
mounted on a plate at the fan end of the engine and
which is gear-driven by the engine. The reservoir, from
which the hydraulic fluid is supplied, is built into the truck
The main hydraulic system uses a hydraulic lift cylinder
frame. The flow of hydraulic fluid is controlled by a lever
mounted on the mast assembly to raise the loads being
operated hydraulic control valve. A brief description of
handled by the lift truck. Two hydraulic tilt cylinders,
each component is provided as an introduction to the
mounted between the mast and the truck frame, tilt the
paragraph covering that component.
mast to the required attitude.
Hydraulic power is
supplied by a vane-type hydraulic pump which is
Section II. LIFT CYLINDER
The lift cylinder is a single-acting, two-stage hydraulic
Remove the lift cylinder (para 2-6).
cylinder. It provides power to lift. It is lowered by the
weight of the carriage or mast. When the limit of the first
stage of the hydraulic cylinder is reached, the second
stage operates to continue the lifting effort.
Refer to figure 4-1 and disassemble the lift cylinder.
Note the following: