Komatsu WB93S-5 – fuse box
Komatsu WB93S-5 – fuse box diagram
Year of production:
Fuse box
| Number | Amperes [A] | Description |
| F1 | 15 | Central front work lights |
| F2 | 15 | Central rear work lights |
| F3 | 3 | Front left and rear right parking lamps;
Parking light warning light; Instrument illumination. |
| F4 | 3 | Front right and rear left parking lamps;
Lighter light. |
| F5 | 10 | Front |
| F6 | 15 | Side rear work lights |
| F7 | 7.5 | Rear window wiper, rear home |
| F8 | 7.5 | Stop lamps, stop lamp relay |
| F9 | 15 | Side front work lights |
| F10 | 10 | Windshield wiper;
Windshield washer pump. |
| F11 | 7.5 | Boom locking solenoid valve;
Solenoid valve blocking the plate. |
| F12 | 5 | Buzzer power supply;
General alarm power supply; Instrument warning lamp and front dashboard power supply. |
| F13 | 10 | Power for optional equipment;
4WD solenoid valve. |
| F14 | 10 | High beam relay;
Dipped beam relay; Horn relay; Safety valve solenoid valves. |
| F15 | 10 | Engine stop solenoid;
Auxiliary function relay; Air conditioner relay. |
| F 16 | 10 | Rotary light driver |
| F17 | 10 | Hour counter memory;
Warning light. |
| F18 | 10 | Cigarette lighter power supply, overhead light |
| F19 | 15 | Left dipped beam;
Right low beam. |
| F20 | 15 | Left high beam;
Right high beam. |
| F21 | 10 | Digging return sensor supply;
LSS solenoid valve; Loader arm float solenoid; Digging return solenoid valve; Direction indicator. |
| F22 | 7.5 | Solenoid valve to block the servo control;
EC supply solenoid valve; PPC power supply. |
| F23 | 10 | Control unit |
| F24 | 7.5 | Turn signal power supply |
| F25 | 10 | Declutch relay;
Forward Solenoid Valve; Reverse solenoid valve; Reverse alarm |
| Relay | ||
| K1 | Safety unit (before restarting) | |
| K2 | Blinker | |
| K3 | Dipped beam relay | |
| K4 | High beam headlamp relay | |
| K5 | Front hom relay | |
| K6 | Digging reverse relay | |
| K7 | Stop the light relay | |
| K8 | Start the enable relay | |
| K9 | Forward gear relay | |
| K10 | Reverse relay | |
| K11 | Turn signal power relay (disengaged) | |
| Number | Amperes [A] | Description |
| F27 | 175 | General system fuse;
Ignition key; Starting relay; Approval for pre-heating; Heating supply. |
| Number | Description |
| K12 | Machine function relay |
| K13 | Start the relay |
| Number | Description |
| K14 | Glow plug preheating relay |
| K15 | Multifunctional unit |
| Number | Amperes [A] | Description |
| 1 | 20 | Power for 1st and 2nd fan speeds |
| 2 | 40 | Power supply to the fans |
| 3 | 7.5 | Air conditioning compressor |
| Number | Description |
| 4 | fan speed relay rd |
| 5 | General heating relay |
| 6 | Air conditioning compressor relay |