Servicing Work
8 Instructions on Design, Operation, Maintenance and Inspection
2 Maintenance
Maintenance intervals:
W
e recommend to carry out the following work within the scope of the general maintenance
work.¡
2.1 Test driving
During the test drive, in particular look out for the following chacteristics:
r
eturn to neutral
sticking
increased friction
play
2.2 Checking and inspecting for external leakproofness/damages
Check the steering gear (with bellows), the protecting caps, the pumps (engine-driven and ground-
driven), the valves and the steering cylinders, the lines and the screwed connections for leakproof-
ness and damages. The piston rod of the steering cylinder may be covered by a thin oil film but
there must not be any oil drops.
Note:
When cleaning with a high pressure cleaning machine, make sure not to direct the water jet di-
rectly towards the sealing elements of the steering system. Ingressing water and impurities can
cause malfunctions.
2.3 Checking the oil level
Oil grade required: please refer to List of Lubricants TE-ML 09
P
rior to pulling out the oil dipstick, thoroughly clean the oil tank and its immediate vicinity to protect
the hydraulic oil from being soiled by impurities.
Attention:
Too low an oil level may cause malfunctions which can entail a failure of the hydraulic assistance
of the steering system.
¡ see vehicle manufacturer’s instructions
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