Hydraulic fluid change – DR Power Hydraulic 22-Ton User Manual

Page 33

Hydraulic Fluid Change

Tools needed:

• Screwdriver

• 10" crescent wrench

• Spark plug socket and Ratchet

1. Drain the head end of the cylinder.

a. Remove the spark plug wire and spark plug to help

reduce the back pressure on the engine and to prevent
it from starting.

NOTE: The total amount of hydraulic fluid in the system is

9.5 gallons.

b. Disconnect the return hose from the hydraulic fluid

filter housing and place it in a waste fluid container
(Figure 53). (Please properly dispose of the waste
hydraulic fluid per local regulations.)

c. Extend the cylinder by holding the hydraulic control

valve handle forward and have someone pull on the
engine’s pull start cord until fluid from the return line
stops flowing. This step drains the head end of the
cylinder.

2. Drain the hydraulic tank.

a. Place a waste fluid container under inlet hose (Figure

53).

b. Remove the inlet hose from the pump.

c. Slightly lower the front of the WOOD SPLITTER by

folding the leg assembly to completely drain the tank.

. Remove and replace the hydraulic fluid filter.

a. Remove the existing hydraulic fluid filter and properly

dispose of it (Figure 54).

b. Apply a thin coat of hydraulic fluid to the rubber seal of

the new hydraulic fluid filter.

Screw the filter onto the filter head. Once the filter seal
makes contact with the filter head, turn it an additional
¾ turn. Hand-tighten only.

Figure 54

Hydraulic
Fluid Filter

Filter
Head

NEVER RUN THE WOOD SPLITTER UNLESS THE HYDRAULIC FLUID TANK IS FULL.

Figure 53

Return
Hose

Inlet
Hose

Pump