Changing The Hydraulic Transmission Oil Filter - Komatsu WB93R-5 Operation & Maintenance Manual

4.8.11.d CHANGING THE HYDRAULIC TRANSMIS-
SION OIL FILTER
Soon after the machine has been stopped the transmission
q
unit is very hot and may cause burns; let the machine cool
down before changing the filter.
The oil that may be spilled during the filter change will
q
cause the floor to become slippery; use anti-slip shoes and
immediately remove any trace of oil from the floor and the
transmission unit.
Oils, filters, the coolant and the battery are considered spe-
q
cial waste and must be collected and disposed of accord-
ing to the regulations in force.
On new machines change the hydraulic transmission filter
q
after the first 250 hours of operation and successively eve-
ry 1000 hours.
Carry out this operation whenever the transmission oil is
changed.
Proceed as follows:
1 - Raise the front mat and remove the cover (1).
Use a 13 mm wrench.
2 - Unscrew and remove the old filter (2) by means of the special
wrench provided.
3 - Clean the contact surface between the seal and the filter sup-
port (3).
4 - Lubricate the seal, fit it in its seat and screw the new filter
thoroughly until it touches the seal.
5 - Give another half turn by hand.
6 - Start the engine and let it idle until the oil warms up and
reaches the operating temperature.
7 - Top up until reaching the MAX. mark on the dipstick (4) (see
"4.8.8.f CHECKING THE HYDRAULIC TRANSMISSION OIL
LEVEL").
Always use oil of the prescribed type (see "4.3 FUEL, COOL-
ANT AND LUBRICANTS").
8 - Put back the cover (1).
WARNING
CAUTION
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MAINTENANCE PROCEDURES
1
2
3
4
RKAB4300
RKAB4310
MAX.
MIN.
RKAB4100
225