8.9
Pressure test in steering circuit
BOMAG
106
008 921 86
6. Disconnect the hydraulic hoses (Fig. 4) from
ports L and R on the steering cylinder and close
them with plugs.
7. Repeat the pressure test.
Nominal value
approx. 10 bar
Evaluation of test
If the nominal value is reached, replace the steer-
ing cylinder.
If the nominal value is not reached, check the
steering/charge pump.
8. Reconnect the hydraulic hoses to the steering
cylinders.
9. Close the pump outlet (Fig. 5) with a 200 bar
pressure relief valve
10. Run the engine for a short while with idle speed
and read the pressure gauge.
Nominal value
approx. 200 bar
Evaluation of test
If the nominal value is reached, replace the steer-
ing valve.
If the nominal value is not reached, replace the
steering/charge/vibration pump.
Fig. 4
Fig. 5
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