Komatsu WB93S-5

09.08.2017 (US:08.09.17), Category: Komatsu

Fuse Block

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).

Fuses Specifications
No.	A	Description
F1	15	Central front work lights
F2	15	Central rear work lights
F3	3	Front left and rear right parking light, parking light warning light, instrument backlighting
F4	3	Front right and rear left parking light, cigarette lighter light
F5	10	Front hom
F6	15	Lateral rear work lights
F7	7,5	Rear windshield wiper, rear hom
F8	7,5	Stop lights, stop light relay
F9	15	Lateral front work lights
F10	10	Front windshield wiper, windshield washer pump
F11	7,5	Boom locking solenoid valve, plate locking solenoid valve
F12	5	Buzzer power supply, general alarm power supply, instrument and front dashboard warning light power supply
F13	10	Optional equipment power supply, 4WD solenoid valve.
F14	10	High beam relay, low beam relay, horn relay, safety valve solenoid valves
F15	10	Engine stop solenoid, ancillary functions relay, air conditioner relay
F16	10	Revolving light power supply
F17	10	Hour counter memory, hazard warning light
F18	10	Cigarette lighter power supply, overhead light
F19	15	Left low beam, right low beam
F20	15	Left high beam, right high beam
F21	10	Return-to-dig sensor power supply, LSS solenoid valve, loader arm floating device solenoid valve, retum-to-dig solenoid valve, direction indicator
F22	7,5	Servo control locking solenoid valve, EC power solenoid valve, PPC power supply
F23	10	Steering unit
F24	7,5	Direction indicator power supply
F25	10	Declutch relay, forward gear solenoid valve, reverse gear solenoid valve, reverse alarm
Relay
K1	Safety unit (against repeated start)
K2	Blinking
K3	Low beam relay
K4	High beam relay
K5	Front hom relay
K6	Retum-to-dig relay
K7	Stop light relay
K8	Start enabling relay
K9	Forward gear relay
K10	Reverse relay
K11	Direction indicator power supply relay (declutch)

Main Fuse

Fuses Specifications
No.	A	Description
F27	175	General system fuse, ignition key, start relay, pre-heating consent, heating power supply

Relay Location

Relay Description
No.	Description
K12	Machine functions relay
K13	Start relay

Komatsu WB93S-5 glow plug preheating relay location

Relay Description
No.	Description
K14	Glow plug preheating relay
K15	Multifunction unit

Fuse Block No.2

The fuses and relays are grouped on a single base positioned under the storage compartment and can be reached after opening the door (1) and removing the container (2).

Komatsu WB93S-5 Radiator Fan Fuse Location

Fuses Specifications
No.	A	Description
1	20	1st and 2nd fan speed power supply
2	40	3rd fan speed power supply
3	7,5	Air conditioning compressor

Komatsu WB93S-5 Radiator Fan Relay Location

Relay Description
No.	Description
4	3rd fan speed relay
5	General heating relay
6	Air conditioning compressor relay