Changing The Hydraulic System Oil Filter; Changing The Engine Oil Filter - Komatsu WB93R-5 Operation & Maintenance Manual

MAINTENANCE PROCEDURES
4.8.10.b CHANGING THE ENGINE OIL FILTER
Soon after the machine has been stopped the engine oil is very hot and may cause burns; let the engine
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cool down until it reaches a temperature of 40÷45°C before draining the oil.
The oil that may be spilled during the oil change will make the ground slippery, therefore use anti-slip
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shoes and immediately remove any trace of oil from the floor.
Oils, filters, the coolant and the battery are considered special waste and must be collected and dis-
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posed of according to the regulations in force.
This operation must be carried out whenever the oil is changed.
Proceed as follows:
1 - Unscrew and remove the old filter (1) using the special
wrench provided.
2 - Clean the contact surface between the seal and the filter sup-
port (2).
3 - Fill the new filter with engine oil, lubricate the seal and screw
thoroughly until the filter rests against the seal.
4 - Give another half turn by hand.
Start the engine, make sure that there are no leakages and that
the low oil pressure warning light goes out.
IMPORTANT
Do not use the wrench to lock the filter, in order to avoid
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damaging the filter itself and causing oil leakages.
4.8.10.c CHANGING THE HYDRAULIC SYSTEM OIL FILTER
Soon after the machine has been stopped the hydraulic oil is very hot; let it cool down until it reaches a
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temperature of 40÷45°C before changing it.
The hydraulic system is under pressure; slowly loosen the filler cap to release any residual pressure.
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Oils, filters, the coolant and the battery are considered special waste and must be collected and dis-
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posed of according to the regulations in force.
On new machines change the hydraulic oil filter cartridge after the first 250 hours of operation and suc-
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cessively every 500 hours.
On machines containing synthetic biodegradable oil type HEES , this must be changed for the first time
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after the first 50 hours of operation and successively every 500 hours.
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WARNING
WARNING
CAUTION
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