Changing The Braking System Oil - Komatsu WB93S-5 F50003 Operation & Maintenance Manual

4.8.12.c CHANGING THE BRAKING SYSTEM OIL
Oil spilled on the floor may cause the floor to become
q
slippery; immediately clean any dirty area.
Oils, filters, the coolant and the battery are considered
q
special waste and must be collected and disposed of
according to the regulations in force.
Before changing the braking system oil, it is advisable to brake a
few times in order to warm up and fluidize the oil and therefore
facilitate draining. The oil change and the bleeding of the braking
system must be carried out with the machine positioned on level
ground and parking brake applied. Drain the oil and wash the
system, proceeding as follows:
1 - Apply a small pipe for the collection of the oil to the drain
screws (1) and loosen them. Use a 13 mm wrench.
2 - Remove the front guard (2) and the cap (3).
3 - Operate the brake pedals (connected with each other) until
the oil contained in the reservoir (3) runs out.
4 - Fill the reservoir (3) with new oil and keep pressing the pedal;
repeat this operation more than once until the used oil (about
0.8 l) has been changed completely; bleed to release the
residual air (see "4.8.1.h BLEEDING THE BRAKING
CIRCUIT").
For details on the oil to be used, see "4.3 FUEL, COOLANT
AND LUBRICANTS".
AVVERTENZA
MAINTENANCE PROCEDURES
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RWAA9090
RKAB3770
RKAB3750
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