67
Replace hydraulic oil…every 2000 or 1500 hours
Clean oil inhaling filter …when replace hydraulic oil
1) For easy access, rotate superstructure 90
o
，and park
the machine on level ground.
2) Arm cylinder extracts and bucket cylinder extends
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) Pull pilot control lever to lock position.
7) Screw the screw plug ① of vent hole, release the
inner pressure of fuel tank.
1) Release oil vent plug ③ at the bottom of
hydraulic oil tank by spanner to vent the oil. And
fill the scrap oil into some kind of container.
2) Release the rubber hose connecting oil return
hole flange ② and oil sucking hole flange ④.
3) Remove the oil return hole flange ② and oil
sucking hole flange ④.
4) Remove the oil sucking filter core and oil
returning filter core.
5) Clean the interior of oil sucking filter core and oil tank, if change filter, fit new filter on the
flange.
The replacement interval of
hydraulic oil is different with
its specification. (Refer to the
recommended oil table of this
part)
Before screwing the screw plug, or
separating the oil pipe, stand at the
side of the part, screw it slowly to
release pressure, and keep your face
and body away from the screw plug.
FIG.4-12
The hydraulic oil may be hot,
cool it down before
FIG. 4-11
To Next Page
Loading...
