OPERATION & MAINTENANCE MANUAL SWE50E/SWE60E/SWE70E/SWE80E9/SWE100
4.5.2.5 Clean oil return filter.
Warning
With engine shut, parts and oil are
still at high temperature. Wait for
engine to cool down, before starting
operation.
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 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.
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 cap (1) at which moment, the
cap might be ejected under spring (2)
force, therefore it’s necessary to hold the
cap down when removing these bolts.
Pull out upper end of bar (3), remove
spring (2) and filter (4).
Remove dirt adhered on filter (4), rinse it
with fresh diesel oil or washing oil. If the
filter (4) is damaged, replace it with new
one.
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.