MAINTENANCE PROCEDURES
199
4.8.5 MAINTENANCE AFTER THE FIRST 50 HOURS OF OPERATION (Only
for machines in which synthetic biodegradable oil type HEES is
used)
The following maintenance operation must be carried out after the first 50 hours, together with the maintenance
operations to be carried out “EVERY 50 HOURS”.
a - CHANGE THE HYDRAULIC OIL DRAIN FILTER
For further details, see section "4.8.10 MAINTENANCE EVERY 500 HOURS OF OPERATION".
4.8.6 MAINTENANCE EVERY 50 HOURS
OF OPERATION
4.8.6.a CHECKING THE HYDRAULIC OIL LEVEL
WARNING
q The oil level must be checked with cold oil and the machine
positioned on level ground and in lubricating position.
q If it is necessary to top up, stop the engine and eliminate
the residual pressure from the equipment circuits (by
moving the controls more than once) and from the tank (by
slowly loosening the filler cap (2)).
The oil level must be visible through the window (1) provided on
the tank and must be included between the MIN. and MAX.
marks.
If the level is near the MIN. reference mark, open the engine hood
(see "3.5.1 ENGINE HOOD") and top up through the filler (2)
using the prescribed type of hydraulic oil (see "4.3 FUEL,
COOLANT AND LUBRICANTS"). Put back the filler cap (2) and
close the engine hood.
IMPORTANT
q Do not exceed the MAX. reference mark. This would
damage the hydraulic circuit and cause the oil to overflow.
q If you notice a constant, unusual decrease in the oil level,
contact your Komatsu Dealer.
RKA14230
RKAB3830
1
RKAB3840
2
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