OPERATION & MAINTENANCE MANUAL SWE18UF
92
1) Open access panel at the bottom of hydraulic oil tank, and release oil
vent plug ③ by spanner to vent the oil. And fill the scrap oil into
some kind of container.
2) Release the rubber hose connecting oil return hole flange ② and oil
sucking hole flange ④.
3) Remove the oil return hole flange ② and oil sucking hole flange ④.
4) Remove the oil suction filter element and oil return filter element.
5) Clean the interior of oil suction filter element and oil tank, if change
filter, fit new filter on the flange.
6) Connect the clean filter element (or new filter element ) with their
connect flange, fasten the fuel tank, then connect the rubber hose.
7) Clean, fit on, and screw down oil outlet plug ③.
8) Fill the new clean hydraulic oil from poisition A to the oil tank. Keep
the oil level reach the position between the marks of oil level meter.
9) Reinstall the mounting plate of left control box.
Exhaust
1) Release exhaust plug of hydraulic pump.
2) Once hydraulic oil overflows from the exhaust plug plug, screw the plug down immediately.
3) Start engine and run it idle for 10 mins.
4) Idle the engine, make all hydraulic cylinders do incomplete stroke extending & retracting operation
for four or five times.
5) Run engine at high speed, make all the hydraulic cylinders do incomplete stroke extending &
retracting operation for four or five times.
6) Idle the engine again, extend or retract all hydraulic cylinders fully for four or five times.
Before screwing the screw plug, or
separating the oil pipe, stand at the
side of the part, screw it slowly to
release pressure, and keep your face
and body away from the screw plug.
After the replacement of hydraulic
oil, exhaust the air from hydraulic
circuit and hydraulic device. If this
work has not been properly done, it may
cause damage to the hydraulic devices.
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