Komatsu WA470-6 2006, Operation & Maintenance Manual

Page: 306 / 392

4.9 Service procedure
Every 100 hours service
Maintenance
4-56
WA470-6H – VEAM946100
4.9.7 Every 100 hours service
Maintenance for every 50 hours service should be carried out at
the same time.
Lubricate rear axle pivot pin
(3 places)
1. Using a grease pump, pump in grease through the grease
fittings marked by the arrows.
2. After greasing, wipe off any old grease that was pushed out.
Check oil level in hydraulic tank, add oil
WARNING
!
The parts and oil are at high temperature after the engine is
stopped, and may cause burns. Wait for the temperature to
go down before starting the work.
!
When removing the oil filler cap, turn it slowly to release the
internal pressure, then remove it.
1. Lower the bucket horizontally to the ground and stop the
engine. Wait for 5 minutes, then check sight gauge (G). The
oil level should be between the H and L marks.
NOTE
Do not add oil above the H line. This will damage the hydraulic
circuit or cause the oil to spurt out. If oil has been added to
above the H level, stop the engine and wait for the hydraulic oil
to cool down, then drain the excess oil from drain plug.
2. If the oil level is below the L mark, remove mounting bolts (2)
of cover (1) at the top of the tank, remove cover (1), then add
oil through oil filler port (F).
GK038107
GK047040
G
F
1
2