Component Tests and General Diagnostics

- Depressurise system. Service and Repair





- Remove the screw plug from the manifold and screw in, reducer 34 3 160 instead.

WARNING! Do not re-use oil draining from system.

Fitting Instructions:
Replace seal.

- Connect pressure gauge 32 4 000 to reducer. Connect drain hose 37 2 010 to pressure gauge and a suitable collection vessel.





- Close hoses (1) and (2) to reducer and reservoir as well as shut-off valves (3) and (4).





- Push control switch lever into position ''Fill or Lift'' (i.e. towards she rear) until the pressure gauge reads approx. 30 bar.





- Open the cutoff valve (4) slowly and observe the pressure gauge.

- The pressure at which the gauge pointer suddenly falls to 0 bar is the accumulator gas volume pressure.

- Repeat this test to check the correctness of the reading.

- If the test pressure is below 16 bar one or both accumulators must be replaced.





- To test the left hand accumulator the pipe line coming from the right hand accumulator should be detached from the manifold and closed.

- Carry out the test as described above.

- Test the right hand accumulator accordingly.

Fitting Instruction:
Tightening torque 20 Nm.