SkyTrak 8042 Service Manual - Manual (Page 590)

8.175 Model 8042, 10042, 10054 Legacy Rev. 10/03
Hydraulic System
g. Side Tilt Carriage Cylinder Pressure Checking
and Circuit Bleeding
1. Attach a 4000 psi (276 bar) gauge to the test fitting
on the main control valve to test the system
pressure. Pressure readings should be
3000 ±100
psi (207 ±7 bar). Refer to Section 8.7, “Hydraulic
System Testing.” To check the cylinder pressure,
consult the factory.
2. Start with the side tilt carriage cylinder balanced,
that is, with the carriage level and centered, not
tilted.
3. Tilt the carriage fully left. Hold the joystick at full tilt
left for several seconds, then tilt the carriage fully
right and hold the joystick at full tilt right for several
seconds. Observe the readings on the gauge during
the carriage tilting operations.
4. Center and level the carriage. While levelling the
carriage, check the pressure reading on the gauge.
5. Repeat Steps 3 and 4 five times.
8.13.13 Steering Cylinders
The steering cylinders (8 and 9) are secured to the axle
assemblies. Steer cylinders are covered in the
appropriate manufacturer’s axle literature. For the front
steering cylinder (8), refer to the ZF Axle Repair Manual,
Model MS-T 3060 P/N 8990419
(ZF P/N 5871 560 002). For the rear steering cylinder (9),
refer to the ZF Axle Repair Manual, Model MS-T 3045 P/N
8990430 (ZF P/N 5871 550 002).
MH3730
Front
8
9