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Commissioning
Bosch Rexroth AB, Installation and maintenance manual, Hägglunds DOb, RE 15327-WA/05.2017
STEP 3
Unloaded pump at longer intervals
• Run for a period at no load condition until system is stable and control is
established.
• Check fluid level in the tank.
• Filling up the system with fluid may be needed as parts of the system has been
filled up.
• Check for unusual noises or vibrations.
• Check for leakage points.
• Stop the electric motor and correct if any faults discovered on the points above.
• Check all connections, screws etc. and tighten if necessary.
• Restart when finished.
STEP 4
loaded hydraulic system
• The hydraulic system can be loaded when the hydraulic system functions works
satisfactorily in unloaded running condition.
• Gradually increase load until satisfactory operation is obtained.
• It may be necessary at this point to make adjustments to flow, ramp rates, etc.
• Cycle the system until normal operating temperature is reached.
• If system will run with speed feedback, check and adjust feedback regulator
parameters.
STEP 5
Check:
• Unusual noises or vibrations.
• Function of safety equipment.
• Temp in tank and hydraulic loop. Check also that the cooler control is stable.
• Leakage points.
STEP 6
After test
• Correct any faults discovered at the points above.
• Check the filter indicator. It might be necessary to change filter elements due
to particles from the piping. When changing filter elements carefully follow the
instructions in 10.3: Filter change to avoid dirt into the system. If there still is dirt in
the system, additional flushing is necessary in order to prevent premature failure of
system components.
• Check all connections, screws etc. and tighten if necessary.
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