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MAINTENANCE
12. Put back the drain plug (P), the lower flange (7) with the
filter (8), checking the soundness of the gasket, and the
suction pipe (5) with the clamps (4).
13. Fill with prescribed oil until reaching the level (G).
Use only oil of the prescribed type (see "FUEL, COOLANT
AND LUBRICANTS (4-12)").
14. Close the cab floor.
15. Extend the boom, arm and bucket cylinders completely, as
shown in the figure, and remove the filler cap (F).
Put back the cap and pressurize the tank by lowering the
equipment to the ground.
16. Make sure that all control levers are in neutral position and
run the engine at idle for 2-3 minutes before activating the
working tools.
Move piston many times each to remove air from the
system; Check again and if necessary, restore the level.
Do not start the engine with empty tank, since this would
certainly damage the pump.
NOTICE
I n m a c h i n e s e q u i p p e d w i t h b r e a k e r h y d r a u l i c o i l
deteriorates more rapidly than in machines used for
simple digging operations.
Change the oil following the instructions given in the table.
(B): Hydraulic oil replacement interval
(X): Demolition hammer - use percentage (%).
(Y): Change interval (H)
CAUTION
WEAM014500
MAINTENANCE PROCEDURES
4-65
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