SUNWARD SWE155F, Operation & Maintenance Manual

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OPERATION & MAINTENANCE MANUAL SWE155F
143
3) Clean up filter bracket, use clean fuel to rinse new
filter and apply engine oil to contact surface. Then
position it to filter bracket.
4) During installation, fasten until sealing surface
contacts with the sealing surface of filter bracket. Then
fasten another half turn.
Fastening too much may cause damages to contact
surface and leading to signs of oil leakage.
If fastening too loose, fuel may leak from contact
surface. Therefore it must be tighten appropriately.
Note: With filter replaced, it
’
s necessary to exhaust
air from fuel system.
Exhausting Air from Fuel System
1) Loosen exhaust plug.
2) Loosen oil pump button, press on it repeatedly until
fuel oil overflows from air bleeding plug.
3) Fasten oil pump button and air bleeding plug.
4)
Start engine to check filter sealing surface for
leakage.
4.5.2.5 Cleaning Oil Suction Filter Element
Warning

With engine shut, parts and oil are at high
temperature which may lead to serious burns.
Wait until temperature cools down before
starting maintenance operation.

There is pressure in hydraulic oil tank. Release
pressure first before opening oil fill cap on top
of hydraulic oil tank.
1) To facilitate access, swing upper-structure 90
o
, then
stop excavator at level ground.
2) Position excavator with arm cylinder completely
retracted and bucket cylinder completely extended.
3) Lower bucket to the ground, run the engine unloaded
at low speed for 5 minutes. Stop the engine, remove
key and set pilot control lever to LOCK position.
4) Clean up upper hydraulic oil tank to prevent dirt
getting into hydraulic system. Press lock cap to
release internal pressure.
2
1
Fuel primary
filter