Track Drive Unit - Volvo EC330B Operator's Manual

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Track drive unit

General
IMPORTANT
Always clean around the check plug before you check the oil
level. Dirt in the oil damages the track drive case.
It is very important that the oil level is always correct and that it is
checked at working temperature.
Therefore remember:
– The track drive case may not drive correctly and thus be dam-
aged if there is too little oil.
– Too much oil makes the oil foam, which causes the track drive
case to overheat.
WARNING!
Immediately after operating the machine, the oil is hot.
Allow the oil to cool. Residual pressure in the drive unit,
may cause the plug to be dislodged suddenly and oil to jet
out.
Checking oil level in track drive unit
Check the oil level every 250 hours.
1 Turn the case so that drain plug (A) is at the bottom.
2 Remove oil level check plug (B). If the oil is about to overflow
from the hole, the level is correct.
If the oil is low, top up the oil to the correct level, through the level
check plug (B).
Oil specification: See Recommended lubricants on page 177.
S83009
Changing oil in track drive unit
Change the oil after the first 500 hours and every 2000 hours.
1 Find a container (above 11 litres) for receiving the drained oil.
2 Turn the case so that drain plug (A) is at the bottom.
3 Place a container under drain plug (A).
4 Remove drain plug (A) and oil level check plug (B) and drain
the oil.
5 Check the O-ring on the plugs, if damaged, replace it.
6 Install drain plug (A).
7 Fill the oil to the correct level through oil level check plug hole
(B).
Oil specification: See Recommended lubricants on page 177.
Install the filling port plug (B)
Service and maintenance
Track drive unit 159