Komatsu PC22MR-3, Operation & Maintenance Manual

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MAINTENANCE PROCEDURES
MAINTENANCE
4-60
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.
On new machines, change the filter after the first 100-150
hours of operation and for the successive changes keep to
the instructions given in the table on the right.
q
(A): Hydraulic fluid filter - replacement interval.
q
(X): Demolition hammer - use percentage (%).
q
(Y): Change interval (H)
CHANGING THE OIL IN THE FINAL REDUCTION
GEARS
4
WARNING
q
As soon as the machine has been stopped the oil is very hot and may cause burns; let the oil cool
down until reaching 40–45°C before changing it.
q
Loosen the cap slowly to release any residual pressure.
q
Oils, filters, the coolant and the battery are considered special waste and must be collected and
disposed of according to the regulations in force.
This operation must be carried out on each reduction gear with the machine parked on level ground and at a
temperature of 40–45°C, so that the oil becomes fluid and can be drained easily, which facilitates the elimination of
any suspended solid particles.
1. Move the machine until the drain plug (P) is in low position
and perpendicular to the ground.
2. Remove the drain plug (P) and let the used oil flow out
completely, gathering it into a container with suitable
capacity.
While the oil flows out, remove the level plug (G).
3. Once the oil has been drained, put back the plug (2) and
pour oil of the prescribed type through the hole (G), until
reaching the lower edge of the hole itself.
4. Put back the plug (G).
Carry out some forward and backward movements, stop the
machine and check the levels again. Always use oil of the
prescribed type (see "FUEL, COOLANT AND LUBRICANTS
(4-12)").
WEAM014500