Linde 350 Series Service Training page 163

Service Training
With engine at idling speed, turn the steering wheel to the right and left through the full cycle, hold it briefly
and assess operation according to the following evaluation table:
Symptoms
1. Stiff steering.
2. Steering wheel can be
turned further at stop
without much effort.
3. Steering wheel can be
turned as far as stop,
then blocked.
To check for leakage in the steer cylinder, proceed as follows.
- Move the steer cylinder to the right as far as the stop.
- Disconnect the right-hand hose at the steer cylinder.
- Move (hold) the steer cylinder (with the steering wheel) to the stop - there should be no oil emerging.
- If oil is running out, check the packing and cylinder tube of the steer cylinder.
Readings
HP less than
120 bar.
Boost pressure 17 bar
or more.
HP under
120 bar.
Boost pressure under
17 bar.
HP under 100 bar,
Boost pressure 17 bar
or over.
HP approx.
120 bar as required.
Boost pressure 17 bar
or over.
Section
02.01
Page
Assessment
Safety valve of
servostat defective
Gear pump 11 cc
defective.
Replace the tandem
pump.
Leak in servostat or
steering cylinder. Check
as described below.
Hydraulic steering system
in order. If still faulty,
replace the steering
control valve.
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