Servicing Work
Instructions on Design, Operation, Maintenance and Inspection
9
For vehicles with ZF Servocom RAS (Rear Axle Steering System)
C
heck the oil level in the straight ahead driving position.
If the oil level is above the top mark, there may be a leakage in the master cylinder of the ZF
Servocom RAS steering.
Check the ZF Servocom RAS as specified in the Instructions for the Functional Check, Mainte-
nance and Inspection of ZF Servocom RAS steering gears.
Oil level check with the engine stopped:
The oil must be topped up to the upper mark of the oil dipstick.
Oil level check with the engine running:
When the engine is running, the oil level must be between the lower and the upper marks.
When the engine is stopped, the oil level may rise by 1...2 cm (depending on the capacity of the
steering system)
If the oil level rises by more than 2 cm, the steering system has to be bled
Start the engine.
For vehicles equipped with an additional ground-driven emergency steering pump: jack up the
drive axle of the emergency steering pump ¡ and engage a gear.
¡ see vehicle manufacturer’s instructions