Section XIX. HYDRAULIC LIFT COMPONENTS

Section XIX. HYDRAULIC LIFT COMPONENTS

3-72. General

c. Installation. Refer to figure 3-63 and install

hydraulic reservoir breather as follows:

a. Power to raise, lower, and tilt the mast and car-

(1) Install filter element in cap and secure with

riage is supplied by the hydraulic system (fig. 3-59).

screw.

Hydraulic oil is stored in a reservoir and pumped by

(2) Check oil level on level gage. Add oil (OE) to

the hydraulic pump to a control valve. Manipulation

bring level to FULL mark on gage.

of the control valve levers opens and closes ports to

(3) Install breather on reservoir.

the various cylinders, providing motion.

(4) Install floor plate.

b. The system also supplies the hydraulic oil pres-

sure for the power steering system.

3-74. Hydraulic Oil Filter

c. The main components as illustrated on figure

a. Genera1. The micron-type hydraulic oil filter is

3-60 are the hydraulic oil reservoir, hydraulic pump,

mounted under the right hand cowl next to the hy-

control valve, filter, lift and tilt cylinders, and hoses

draulic control valve. Hose assemblies lead from the

and tubes.

control valve to the filter and from the filter to the

3-73. Hydraulic Reservoir Breather

reservoir.

b. Service. Service of the filter consists of replacing

a. Removal. Refer to figure 3-63 and remove the

the filter element. Refer to figure 3-64 to service the

breather from the hydraulic reservoir as follows:

hydraulic oil filter.

(1) Remove floor plate.

(1) Remove the right hand cowl.

(2) Remove breather from hydraulic oil reservoir.

(2) Place a suitable container or rags beneath fil-

(3) Remove screw from top of breather and re-

ter to catch oil as element is removed.

move filter element.

(3) Support filter base and unscrew head bolt

b. Cleaning and Inspection. Clean the filter ele-

to lower filter base.

ment with hydraulic oil or with a reverse flow of

(4) Lower filter base and remove filter element

compressed air. If element cannot be cleaned or is

and gasket from base.

damaged, replace breather.

3-55