Checking The Windshield Wiper Blades; Lubricating The Cab Door Hinges; Fuses And Relays - Check And Change - Komatsu WB93S-5 F50003 Operation & Maintenance Manual

MAINTENANCE PROCEDURES
4.8.1.e

CHECKING THE WINDSHIELD WIPER BLADES

The windshield wiper blades should be checked once the windshield wipers have stopped working, by verifying
the conditions of the windshield. If any lines are left on the windshield after washing and wiping it, this means that
the scraping wire has deteriorated and therefore it is necessary to change the blades.
IMPORTANTE
To ensure optimal operation of the windshield wiper, it is advisable to change the blades at least once a
q
year. Change the blades more frequently if the machine works in difficult environmental conditions.
Always keep the windows clean, removing any residue of dirt, grease or other substances, since these
may prevent the regular operation of the windshield wiper.
4.8.1.f

LUBRICATING THE CAB DOOR HINGES

The cab door hinges should be lubricated when a squealing noise is heard on opening or closing the cab door or
when signs of oxidation are found on the shoulder washers or on the pivots.
The lubrication procedure consists in injecting grease into the nipples provided on the hinge axes.
For further information on the grease to use, see "4.3 FUEL, COOLANT AND LUBRICANTS".
• Inject grease until all the residual old grease has come out.
• After lubrication, remove all the grease that has come out and clean the area.
4.8.1.g FUSES AND RELAYS – CHECK AND CHANGE
IMPORTANTE
When changing a fuse, make sure that the ignition key is in position « ».
q
If the fuses are oxidized, corroded or do not fit perfectly in their seat, replace them only with new fuses
q
having the same capacity.
If the engine does not turn when the ignition key is brought to position «
q
start fuse and if necessary change it.
CENTRAL UNIT FUSES – RELAYS AND ENGINE LINE
The fuses and relays are grouped on a single base positioned in
the right body side of the cab. They can be reached by removing
the cover (1).
For information on the capacity and characteristics of the fuses
and relays to be replaced, see "3.4.1 CENTRAL UNIT FUSES –
RELAYS AND ENGINE LINE".
VENTILATION, HEATING AND AIR CONDITIONING FUSES
AND RELAYS
The fuses and relays are grouped on a single base positioned
under the storage compartment and can be reached after opening
the door (2) and removing the container (3).
For information on the capacity and characteristics of the fuses
and relays to be replaced, see "3.4.2 VENTILATION, HEATING
AND AIR CONDITIONING FUSES AND RELAYS".
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ATTENZIONE
» START, check the engine
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2
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RKAB3240
RKAB6400