Bertram 540 - Page 338

540
TROUBLESHOOTING
Studio ti 03312 540-04usa
338
15
3. Lack of pressure in the system − Pump doesn’t deliver oil
− Relief valve is not calibrated
− Free discharge of oil to the tank
somewhere into the system
− Verify/Check
− Verify/Check
− Verify/Check
4. System pressure is low or fluctuating − Possible leaks in the piping or elsewhere in
pressurized parts of the system
− Relief valve set at a too low rate
− The relief valve remains open or oscillates
in its housing
− Restriction of the pump suction pipes or
possible obstruction of the filter
− Air in leakages into the suction pipes or by
the pump’s seals
− Worn pump
− Verify/Check
− Verify/Check
− Verify/Check
− Verify/Check
− Verify/Check
− Verify/Check
Problem Cause Action