Fuses And Relays; Central Unit Fuses - Relays And Engine Line; Fuses - Komatsu WB93S-5 F50003 Operation & Maintenance Manual

3.4 FUSES AND RELAYS

IMPORTANT
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.
3.4.1 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).
The following tables indicate the characteristics and the functions
of the single fuses and relays.
3.4.1.1

FUSES

POSITION COLOUR
F1 Light blue
F2 Light blue
F3 Violet
F4 Violet
F5 Red
F6 Light blue
F7 Brown
F8 Brown
F9 Light blue
F10 Red
F11 Brown
F12 Orange
F13 Red
CAPACITY (A)
15 Central front work lights
15 Central rear work lights
Front left and rear right parking light, parking light warning light,
3
instrument backlighting
3 Front right and rear left parking light, cigarette lighter light
10 Front horn
15 Lateral rear work lights
7,5 Rear windshield wiper, rear horn
7,5 Stop lights, stop light relay
15 Lateral front work lights
10 Front windshield wiper, windshield washer pump
7,5 Boom locking solenoid valve, plate locking solenoid valve
Buzzer power supply, general alarm power supply, instrument and
5
front dashboard warning light power supply
10 Optional equipment power supply, 4 WD solenoid valve
» START, check the engine
1
CIRCUIT INVOLVED
FUSES AND RELAYS
RKAB3240
RKAB3250
117