Servicing Work
12 Instructions on Design, Operation, Maintenance and Inspection
Attention:
Below is a list of all work that has to be carried out on the steering gear within the scope of the
safety inspection (SP).
This list represents the currently valid status and is not subject to the Updating Service.
3.5 Steering gear play (part of SP)
S
tart the engine
Rotate the steering gear to the straight ahead driving position.
Slowly turn the steering wheel and, simultaneously, watch the front wheel to see
how far the steering wheel has to be turned to make the front wheel move.
perm. total displacement (stg. wheel ∅ 500 mm): max. 50 mm
max. 55 mm for version with bevel box
3.6 Hydraulic steering limitation (part of SP)
The hydraulic steering limitation causes the pressure to drop in the area of the steering stop, thus
protecting the steering pump and the steering linkage and preventing increased temperatures.
For a check of the setting please refer to Chapter III., para. 5.
3.7 Light operation of the steering gear (part of SP)
If the steering system has a hydraulic defect, this is indicated by increased steering efforts.
Start the engine.
At vehicle standstill, quickly rotate the steering gear twice from lock to lock and look out for
stiff operation of the steering.
3.8 Points of stiff operation (part of SP)
Defective transmission elements (steering column, universal joints, ...) may cause a temporarily
st
iff operation of the steering gear.
Relieve the front axle (conform to vehicle manufacturer’s instructions)
With the engine cut off, rotate the steering gear from lock to lock and look out for points of
stiff operation.
3.9 Automatic return to neutral (part of SP)
The axle geometry ensures automatic return to neutral during driving.
Test drive the vehicle on a cordoned-off ground.
During the test drive, rotate the steering gear to full lock.
Release the steering wheel and find out whether the steering gear automatically
returns to mid-position.
3.10 Steering wheel (part of SP)
C
heck whether the steering wheel is properly fastened.
Check the steering wheel for damages.
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