5-41
MAINTENANCE
EVERY 250 HOURS
INSPECTING THE SLEW MOTOR GEAR
OIL
• Stop the engine and allow each part of
the machine to cool down before
performing maintenance.
· The slew motor is hot immediately
after the engine is stopped. Touching
it will cause burns.
· The gear oil is also hot and under high
pressure immediately after the engine
is stopped.
Be careful not to touch the oil when
loosening the plugs. Working on the
machine under these conditions could
result in burns or injuries.
• When performing maintenance on the
machine, clean up the foot area and
strictly observe the following so as not
to fall:
· Do not spill oil or grease.
· Do not leave tools scattered around.
· Watch your step when walking.
• Never jump down from the machine.
Use the steps and handrails when
climbing up and down the machine, and
always support your body at three
points with your hands and feet.
• The pressure in the reduction gear case
of slew motor may cause oil or the plug
to fly out. Loosen the plug slowly to
release the pressure.
Inspection
1. Take out the level gauge (1) and wipe off
the oil with a rag.
2. Fully insert the level gauge (1) again, and
then pull it out.
3. Check the oil left on the level gauge (1).
The level should be between the upper
limit (H) and the lower limit (L).
If it is below the lower limit (L), replenish.
Replenishing
1. Remove the oil filler cap (2).
2. Add oil up to between the upper limit (H)
and the lower limit (L) of the level gauge
(1).
Problems could arise if the oil level is either
too low or too high.
3. Tighten the oil filler cap (2).
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