Skytrak 6042 Service Manual User Manual download pdf (Page 319)

8.87

Model 6042 Legacy Origin 7/02

Hydraulic System

c. Secondary Function Manifold Installation

1. Align the secondary function manifold with its mount

holes on the frame.

2. Align gaskets, bolt holes, etc., with component

mount holes. Secure the secondary function

manifold with the necessary fasteners. Torque

fasteners to specification. Refer to the fastener

torque chart in Section 2.3, “Torques.”

3. Before attaching the hoses, prime the secondary

function manifold by filling the hydraulic hose ports

with fresh, filtered hydraulic fluid from a clean

container.

4. Use new oiled o-rings as required. Reattach and

secure all diagnostic test nipples, hoses, clamps,

wiring, etc.

5. Check the routing of all hoses, wiring and tubing for

sharp bends or interference with any rotating

members, and install tie wraps and/or protective

conduit as required. Tighten all tube and hose

clamps.

6. Start the engine and run at approximately one-third to

one-half throttle for about one minute without moving

the vehicle or operating any hydraulic functions.

7. Inspect the secondary function manifold for leaks

and check the level of the hydraulic fluid in the

reservoir. Shut the engine OFF.

Note: Check for leaks and repair as required before

continuing. Add hydraulic fluid to the reservoir as needed.

8. Wipe up any hydraulic fluid spillage in, on, near and

around the vehicle, work area and tools.

d. Secondary Function Manifold Test

Conduct a pressure check of the park brake and steering

hydraulic circuits. Refer to Section 8.7, “Hydraulic System

Testing.”

8.12.4 Service Brake Valve

The service brake valve (Fig. 8-51, 1) is secured with

four capscrews and four lockwashers at the base of the

steering column support (2), concealed by the lower dash

cover.

The service brakes themselves are part of the axles (the

park brake is part of the front axle only). Refer to Section

5, “Axles, Drive Shafts, Wheels and Tires”, for further

information.

Figure 8-51 Service Brake Valve Location

and Connections (Bottom)

a. Service Brake Valve Removal

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

all hydraulic cylinders, ground the attachment (if

any), place the travel select lever in (N) NEUTRAL,

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.”

WARNING: Avoid prolonged engine

operation in closed areas with inadequate

ventilation. Failure to properly ventilate exhaust

fumes can result in death or serious injury.

WARNING: Hydraulic oil leaking under

pressure can penetrate the skin and cause

severe personal injury. DO NOT use your hand

or any part of your body to check for hydraulic

leaks. When checking for hydraulic leaks, wear

safety glasses and gloves to help provide

protection from spraying hydraulic oil. Use a

piece of cardboard or paper to search for leaks.

MA7060

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Skytrak 6042 Service Manual User Manual Page 319

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