68
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.
6)
Connect the clean filter core (or new filter core )
with their connect flange, fasten the fuel tank, then connect the rubber hose.
7)
Clean, fit on, and screw down oil outlet plug.
8)
Fill the new clean hydraulic oil from point A to the oil tank. Keep the oil level reach the
position between the marks of oil level meter.
9)
Screw down screw plug
①
of air vent hole.
Exhaust air
1)
Release exhaust plug of hydraulic pump.
2)
Once hydraulic oil overflows from the exhaust plug plug, screw the plug down
immediately.
3)
Start engine and run it idle for 10 mins.
4)
Run engine idle, do 4-5 times incomplete journey extending & contracting operation all
the hydraulic cylinders.
5)
Run engine at high speed, do 4-5 times incomplete journey extending & contracting
operation with all the hydraulic cylinders.
6)
Run engine idle again, do 4-5 times complete journey extending & contracting operation
with all the hydraulic cylinders.
After the replacement of hydraulic
oil, exhaust the air from hydraulic
circuit and hydraulic device. If this
work has not been properly done, it may
cause damage to the hydraulic devices.
FIG.4-12
Summary of Contents for SWE20F 2019
Page 101: ...99 8 ATTACHMENT 8 1 20FNELECTRIC DRAWING...
Page 102: ...100 8 2 20FHYDRAULIC DRAWING...