Maintenance Every 500 Hours Of Operation") Changing The Hydraulic Oil And Cleaning The Intake Filter; Maintenance Every 2000 Hours Of Operation - Komatsu WB93S-5 F50003 Operation & Maintenance Manual

MAINTENANCE PROCEDURES
4.8.12 MAINTENANCE EVERY 2000 HOURS
OF OPERATION
Carry out these operations together with those to be performed every 50, 250, 500 and 1000 HOURS.
4.8.12.a CHANGING THE HYDRAULIC OIL AND CLEANING THE INTAKE FILTER
On machines containing synthetic biodegradable hydraulic
q
oil type HEES, this must be changed after the first 500
hours of operation and successively every 2000 hours, and
in any case at least once a year.
After stopping the engine, with the machine in the correct
q
position for the performance of maintenance operations,
eliminate the residual pressure from the equipment (by
moving the controls more than once) and from the tank (by
slowly loosening the filler cap).
Let the oil cool down until it reaches 40–45°C before
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carrying out this maintenance operation.
If any oil has been spilled, wipe it up immediately, in order
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to prevent the surface from getting slippery.
Oils, filters, the coolant and the battery are considered
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special waste and must be collected and disposed of
according to the regulations in force.
1 - Open the engine hood (see "3.5.1 ENGINE HOOD") and
slowly loosen the filler cap (1) to release any residual
pressure from the tank, then remove it.
2 - Remove the drain plug (2) and let the oil flow out, gathering it
into a container with suitable capacity.
Use a 41 mm wrench.
3 - Remove the plug (3) positioned on the hydraulic pump intake
flange and let the oil flow out, gathering it into a container
with suitable capacity.
Use a 27 mm wrench.
4 - Loosen the clamps and disconnect the intake coupling (4).
5 - Loosen and remove the screws (5) and remove the flange (6)
complete with gasket (7) and filter (8).
6 - Clean the filter (8) using light solvents (kerosene, diesel oil,
etc.); dry the filter with low-pressure compressed air (max. 3
bars).
IMPORTANTE
Carefully check the filtering element grid and if it is not in
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perfect conditions, change it.
7 - Position the gasket (7) and put back the flange (6) complete
with filter (8).
8 - Connect the intake coupling (4) and secure it with the
clamps.
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ATTENZIONE
AVVERTENZA
1
2
4
3
RKA16960
RKAB4040
RKAB4050
RKAB4900