OPERATION & MAINTENANCE MANUAL SWE18UF
91
Vent hydraulic oil tank
sediment…every 250 hours
1) For easy access, rotate upper-structure 90°,and park
the machine on level ground.
2) Lower bucket to the ground.
3) Run engine idle for 5 minutes.
4) Stop engine, and take out key switch. (before start-up)
5) Pull pilot control lever to lock position.
6) Keep your body and face far away from oil outlet
plug.
7) Loosen vent plug at the bottom of hydraulic oil tank
after oil cools down, vent water and sediments.
8) Screw down vent plug after water and sediments
have been vented.
Replace hydraulic oil…
every 1000 hours
Clean oil suction filter element, oil return filter element
…every 1000 hours
1) Park the machine on level ground.
2) Arm cylinder retract fully and bucket cylinder extend
completely to fix excavator.
3) Lower the bucket to ground.
4) Run engine at low revs for 5 minutes.
5) Stop engine, and take out key.
6) Remove all bolts of mounting plate of left control box, lift the control box and mounting plate slightly
together, and turn outward for 90°, and then turn air plug A slowly to release pressure in the oil tank.
The replacement interval of
hydraulic oil is different with
its specification. (Refer to the
table recommended hydraulic oil
table 5.2.11).
The hydraulic oil may be hot,
cool it down before operation.
Never start engine when the
hydraulic oil tank is empty.
Don’t loosen vent plug before oil
cools down, the hydraulic oil may
be hot enough to cause scald.
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