Valve Assembly Internal Leakage Test

Hydraulic Test Program - Valve Assembly Internal Leakage Test

Preliminary work: "Leveling Valve Pressure Test"

Preparation for Test
1. Check oil level in oil reservoir, correct if necessary.
2. Unscrew connecting rod at front and rear leveling valve levers (set levers to neutral position).
3. Disconnect leak oil line of suspension struts at front axle and close steel line.
4. Check pressure supply screw (50a) for proper seating.
5. Disconnect return line (T) at oil reservoir.

Special Tools







Component Locations



2 Hydraulic oil reservoir
3 Rear axle leveling varve
6 Front axle leveling valve
50a Pressure supply screw
54 Front axle connecting rod
55 Rear axle connecting rod
LL Leak oil return line - left suspension strut, front axle distributor/valve unit
T Return line - oil reservoir distributor/valve unit
038f Coupling (from hydraulic kit)
038n Vent screw (from hydraulic kit)

Test: