AR32.50-P-0001N Remove/Install Front Axle Valve Unit

Remove/Install Front Axle Valve Unit

Shown On Model 215:

DANGER
- Risk of death. Death may result if vehicle slips or topples from the lifting platform.
- Align vehicle between the columns of the hydraulic hoist and position the four support plates below the hoist support points specified by the vehicle manufacturer.
- Risk of injury to skin or eyes from hydraulic fluid spraying out under pressure. Risk of poisoning from swallowing hydraulic fluid.
- Release the pressure in the hydraulic system completely before starting any work on the system. Wear protective clothing and safety glasses.


NOTE: See notes on active body control suspension

1.1 Remove lower engine compartment paneling

NOTE: Only front sections

1.2 Remove bottom part of noise encapsulation

NOTE: Only center section or front sections

2 Depressurize ABC system by opening bleed screws (56)

CAUTION: The engine must be shut off for at least 5 minutes.

- Open bleed screws (56) carefully so that the hydraulic fluid can drain out slowly to prevent the body from dropping too rapidly.

NOTE: Collect hydraulic fluid that flows out.

3 Remove front axle pressure reservoir (14)
4 Unscrew pressure line to left front suspension strut (FB1) and pressure line to right front suspension strut (FB2) from the ABC front axle valve unit (Y36/1).
5 Detach line to expansion reservoir (T) and pressure line from tandem pump (P) from front axle ABC valve unit (Y36/1)

CAUTION: Wait 15 minutes after switching off the engine before detaching the line to the expansion reservoir (T) and pressure line from tandem pump to ensure that the ABC system is completely depressurized.

6 Unscrew nuts (14b) and remove front axle ABC valve unit (Y36/1) with mounting plate
7 Disconnect electrical connectors (14c, 14d) from ABC front axle valve unit (Y36/1)

NOTE: Installation: The electrical connector and the connections to the ABC front axle valve unit (Y36/1) are color-coded and must not be misconnected.

8 Detach ABC front axle valve unit (Y36/1) from mounting plate
9 Install in the reverse order

DANGER:
- Risk of accident. Accidents may result if the vehicle starts off unintentionally with the engine running.
- Risk of injury as working around the engine during start-up or while running may result in contusions and burns.
- Secure vehicle to prevent it from moving. Wear closed and snug-fitting work clothes. Do not grasp hot or rotating parts.

10 Fill and bleed ABC system.