SUNWARD SWE215F-5, Operation & Maintenance Manual

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OPERATION & MAINTENANCE MANUAL SWE215F
155
4.5.8.3 Changing Oil Return Filter Element
Warning

After the engine is stopped, parts and oil
are still in high temperature which may
result in serious burns. Wait for
temperature to cool down.

There is pressure inside hydraulic oil
tank. Release pressure before opening oil
fill cap located on top of hydraulic oil
tank.

To facilitate access, swing upper-structure 90°,
then stop the machine at level ground.

Position excavator with arm cylinder fully
retracted and bucket cylinder fully extended.

Lower bucket to ground, run engine unloaded
at low speed for 5 minutes, then stop the engine,
remove key, set pilot control lever to LOCK
position.

Clean up upper hydraulic oil tank to prevent
dirt getting into hydraulic system, press down
lock cap to release internal pressure.

Loosen 6 bolts to release internal pressure, and
remove the cap (1). This time, the spring (2)
may pop up, thus, when dismantling the bolts,
press down the cap.

Pull out upper end of bar (3), remove spring (2)
and filter (4).

Check bottom filter shell for dirt, if any dirt is
found, remove it. Pay attention not to let any
dirt get into hydraulic oil tank.

Place removed parts into fresh diesel oil or
washing oil to rinse (except filter), replace with
new filter.

Reinstall filter element (4), insert it to the bulge
(5) in oil tank.

When installing, the bulge under cap (1) must
secure spring (2), then use bolt to fasten it.