SUNWARD SWE50B, Руководство по эксплуатации и техническому обслуживанию

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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.

Clean up upper hydraulic oil tank to prevent dirt getting into
hydraulic system, press down lock cap to release internal
pressure.

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 (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.
5.5.8.4 Replace Pilot Oil Filter.
Warning

After engine is stopped, parts and oil are still in high
temperature which may result in serious injury. Wait for
temperature to cool down before stating maintenance
operation.

There are pressures in hydraulic system. Release the
pressure before starting maintenance work.

To facilitate access, swing upper turret 90 degree, 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.

Rotate filter wrench counter-clockwise to remove shell (4)
off mounting seat.

Clean up mounting seat (1) and shell (4).

Replace filter (2) and seal ring (3), apply a layer of fresh oil
when installation.

Secure shell (4) clockwise on headstock (1).