Warning – SkyTrak 6036 Service Manual User Manual

Page 278

Hydraulic System

8.62

Model 6036 Legacy

8.11.2

Pump Replacement

a. Pump Removal

1. Park the vehicle on a firm, level surface, fully retract the

boom, raise the boom, place the travel select lever in
(N) NEUTRAL position, place the neutral lock lever in
the (N) NEUTRAL LOCK position, engage the park
brake switch and shut the engine OFF.

2. Place an Accident Prevention Tag on both the

ignition key switch and the steering wheel, stating
that the vehicle should not be operated. Refer to
Section 1.5, “Accident Prevention Tag Usage.”

3. Temporarily block up or support the raised boom.

4. Unlock and open the rear door. Allow the hydraulic

fluid to cool.

5. Drain the oil in the hydraulic reservoir into a suitable

container. Refer to the Model 6036 Legacy Owners/
Operators Manual.

6. Remove the four hex-head capscrews (Fig. 8 -28, 1)

and four lockwashers (2) securing the flange halves
(3) to the pump (4). Remove the inlet hose (5) and
o-ring (6).

Note: It is not necessary to remove the T-bolt band
clamp (Fig. 8-28, 7) and inlet hose (5) from the hydraulic
reservoir outlet connection.

7. Disconnect the outlet hose (Fig. 8-28, 8) from the

connector (9). Cap the outlet hose to prevent
unnecessary fluid spillage.

8. Remove the four hex-head capscrews (Fig. 8-28, 10),

four lockwashers (11) and four plain washers (12)
securing the pump (4) to the transmission. Remove
the pump and o-ring (13) from the vehicle. Wipe up
any hydraulic oil spillage.

Figure 8- 28 Pump Removal

b. Tools Required for Pump Repair

The following tools are required for servicing the pump:

1. A seal removal tool made by heating the tip of a

quality forged screwdriver and bending it (Fig. 8-29).
Grind off the tip to fit the notch behind the pump
shaft seal.

Figure 8-29 Seal Removal Tool

WARNING:

DO NOT get under a raised

boom unless the boom is blocked up. Always
block the boom before doing any servicing that
requires the boom to be up. Unexpected lowering
of the boom may cause death or serious injury.

WARNING:

Hot hydraulic fluid can cause

severe burns. Wait for hydraulic fluid to cool
before servicing any hydraulic component.

WARNING:

Escaping hydraulic fluid

under pressure can penetrate the skin, causing
death or serious injury. Relieve hydraulic pressure
before servicing any hydraulic component.

MA7330

1/4 INCH

MA0801