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8.
Remove the screws (4) from the filter cap (5) and remove the cap.
9.
Remove the filter insert (6).
10.
Clean the interior of the filter. Before cleaning, check whether there
are any foreign particles inside the filter.
11.
Insert a new filter insert. Retighten the cap.
If the O-ring (7) of the cap is no longer in perfect condition, replace
it by a new one.
12.
Tighten the cap screws evenly.
13.
Top up with oil at the oil filler inlet until the prescribed oil level has
been reached. Retighten the filler cap.
Details of recommended oil, see section
"LUBRICANTS AND OPERATING AGENTS".
14.
Clean the venting filter in fuel and re-screw it.
15.
Check the oil level. See section "MAINTENANCE EVERY 100
OPERATING HOURS" for further details.
CAUTION
The piston rings will be damaged by the air in the cylinders if
•
the engine is run idle at a too high speed during the
extraction or retraction of the cylinders,
•
the cylinders are extracted up to the limit stop!
Therefore, let the engine only run at low speed.
16.
Run the engine idle at low speed and extract and retract the
steering, bucket and boom cylinders about 5 times each. Pay
attention that the cylinders are not extracted fully in order to prevent
excessive pressure being caused in the hydraulic system (stop
a
b
100 mm from the end of the stroke).
17.
Now extend the steering, bucket and boom cylinders completely
for 3 to 4 times each. Switch off the engine.
18.
Check the oil level in the inspection glass and top up oil to required
level. Wait for five minutes and recheck the oil level . The oil level
must now be visible in the centre of the inspection glass.
19.
Run the engine at high speed and repeat the process described
under step 17.
20.
Recheck the oil level.
21.
Check for leaks.
MAINTENANCE EVERY 2000 OPERATING HOURS
o
u
t
3-49
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