Hyundai HL960A Operator's Manual page 210

4) 4) RELIEVING THE PRESSURE IN THE HYDRAULIC SYSTEM RELIEVING THE PRESSURE IN THE HYDRAULIC SYSTEM
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Spouting of oil can cause the accident when Spouting of oil can cause the accident when
loosening the cap or hose right after the oper- loosening the cap or hose right after the oper-
ating of the machine as the machine or oil is on ating of the machine as the machine or oil is on
the high pressure on the condition. the high pressure on the condition.
Be sure to relieve the pressure in the system Be sure to relieve the pressure in the system
before repairing hydraulic system. before repairing hydraulic system.
(1) Place the machine in parking position, and stop
the engine.
(2) Rotate the cap nut counter-clockwise by hand
and push the rod to release the air pressure.
Pushing
6-3
Low idling
for 5 minutes
960A4OP07
Cap nut
Rod
Air breather
960A6MI03