SkyTrak 8042 Service Manual - Manual (Page 171)

8-27 6036, 6042, 8042, 10042, 10054
Hydraulic System
8.7.4 Brake Test
Carefully bleed the brake lines as soon as the brake valve
is installed in the machine. Air in the system will not allow
the brakes to apply properly. There are four brake
bleeder locations on the axles. Work with an assistant to
perform this procedure.
1. Place the travel select lever in (N) NEUTRAL,
engage the park brake, and start the engine.
2. Remove the plastic cap from the brake bleeder (2).
Attach one end of a length of transparent tubing over
the brake bleeder. Place the other end of this tubing
in a suitable transparent container that is partially
filled with hydraulic oil. The end of the tubing must
be below the oil level in the container.
3. DO NOT open the brake bleeder without holding the
tubing firmly on the bleeder. There is pressure at the
brakes. Carefully open the bleeder with a wrench.
Have the assistant depress the brake pedal. Close
the brake bleeder when air bubbles no longer
appear in the oil. Release the brake pedal. Remove
the tubing from the brake bleeder.
4. Repeat Steps 2 and 3 for the remaining brake
bleeders.
5. Conduct a pressure and function check of the
service brake. Refer to Section 8.4.1, “Hydraulic
Pressures.”
8.7.5 Power Steering Valve
The power steering valve (3) is located at the base of the
steering wheel shaft, concealed by the lower dash cover.
The valve is not serviceable and must be replaced in its
entirety if defective. For detailed information refer to
Section 4.3.1, “Steering Column and Steering Valve.”
MH6220
2
MZ0370
3