Komatsu Utility WB97S-5, Operation & Maintenance Manual

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MAINTENANCE PROCEDURES
211
4.8.9 MAINTENANCE AFTER THE FIRST 500 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 500 hours, together with the maintenance
operations to be carried out “EVERY 500 HOURS”.
a - CHANGE THE HYDRAULIC OIL AND CLEAN THE INTAKE FILTER
For further details, see section "4.8.12 MAINTENANCE EVERY 2000 HOURS OF OPERATION".
4.8.10 MAINTENANCE EVERY 500 HOURS OF OPERATION
Carry out these operations together with those to be performed every 50 HOURS and every 250 HOURS.
4.8.10.a CHANGING THE ENGINE OIL
WARNING
q
Change the oil with the machine parked on level ground
and lifted loader arm with engaged safety lock.
q
Soon after the machine has been stopped the engine oil is
very hot and may cause burns; let the engine cool down
until it reaches a temperature of 40–45°C before draining
the oil.
q
The oil that may be spilled during the oil change will make
the ground slippery, therefore use anti-slip shoes and
immediately remove any trace of oil from the floor.
q
Oils, filters, the coolant and the battery are considered
special waste and must be collected and disposed of
according to the regulations in force.
When changing the engine oil, change also the filter (see
"4.8.10.b CHANGING THE ENGINE OIL FILTER").
Proceed as follows::
1 - Open the engine hood (see "3.5.1 ENGINE HOOD").
2 - Remove the drain plug (1) of the oil pan, gathering the used
oil that flows out into a container with suitable capacity. Use a
19 mm wrench.
While the oil flows out, remove the filler cap (2), so that the oil
can flow out freely.
3 - Change the filter (see "4.8.10.b CHANGING THE ENGINE
OIL FILTER").
4 - Tighten the plug (1) onto the pan and add the prescribed
quantity of new oil, using the dipstick (3) to make sure that
the oil reaches the MAX. level.
5 - Put back the filler cap (2), start the engine, let it run for 5
minutes and then stop it.
Check the level again and top up if necessary.
6 - Close the engine hood.
Use oil suitable for the ambient temperature. (See "4.3 FUEL,
COOLANT AND LUBRICANTS").
RKAB3960
1
RKAB3970
2
RKAB3980
3 MAX.
MIN.
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