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5.5.8.2 Change Travel Redactor Gear Oil (2×4.7 L)
Stop the machine at level ground, set the connect line of
travel redactor oil fill port 1 and drain port 3 is vertical
from horizontal level.
Shut auto-idle speed switch, run the engine unloaded at low
speed for 5 minutes.
【Important】
Stopping the engine improperly may damage
turbocharger.
Set start key to OFF position, stop the engine, remove the
key from starting lock, set safety lock lever to LOCK
position.
Note
After work, the temperature of gear oil might be very
high. Wait for the temperature to cool down before
gradually loosen the plug of oil fill port 1. Keep face and
body away from plug of oil fill port, during the process
of work.
With the oil cooled down, gradually loosen the plug to
release pressure.
Place a container under drain port3 to collect oil.
Follow the given sequence to remove oil fill port 1, check
port 2 and plug screw of drain port 3 and drain the oil.
Check the o-ring on plug for damages. Replace it with new
one if necessary.
Tighten the plug of drain port 3.
Add oil through oil fill port1, when the oil overflows from
inspection port 2; tighten the plug of oil fill port 1 and
inspection port 2.
Replace travel redactor gear oil on the other side in the
same manner.
5.5.8.3 Change Oil Returning Filter
Warning
After the engine is stopped, parts and oil are still in high
temperature which may result in serious burns. Wait for
temperature to cool down.
There is pressure inside hydraulic oil tank. Release
pressure before opening oil fill cap located on top of
hydraulic oil tank.
To facilitate access, swing upper turret 90 degree, then stop
the machine at level ground.
Position excavator with arm cylinder fully retracted and
bucket cylinder fully extended.
Lower bucket to ground, run engine unloaded at low speed
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