5
Hydraulic Settings
Check the working pressure by means of test equipment. The test equipment must
comprise a pressure gauge, a flow meter and a valve for adjustment of pressure.
The pressure relief valve is placed on the right side of the valve block.
1. Connect the test equipment, start the powerpack and move the lever to “ON”.
Then close the valve - the pressure gauge must show 110 bar.
Adjust the pressure relief valve by loosening the lock nut and turning the adjust-
ment screw in or out. “In” increases the pressure, and “out” decreases the
pressure.
Retighten the lock nut after adjustment.
2.
When the pressure relief valve has been adjusted correctly, the working pressure
must be set at 100 bar by means of the valve on the test equipment. At 100 bar,
the oil flow should be 18 l. p.m.
Fault Location
Start by checking the hydraulic settings
Before starting, check the oil level at the sight
glass.
Check the working pressure by means of the
test equipment. The test equipment com-
prises a pressure gauge, a flow meter and a
valve for adjustment of pressure.
If correct pressure/oil flow cannot be achieved by following the
above instructions, the powerpack must be re-adjusted. If the
pressure/oil flow is then still incorrect, the pump is defect and
must be replaced.
HYCON Test Equipment
Item No. 4040062
