Komatsu PC5500-6 Operation & Maintenance Manual page 166

3.4 ELECTRONIC MONITORING AND CONTROL SYSTEM ECS
Level 4: Inputs - Outputs / DIGITAL-OUTPUTS
/ Y14b-1 VALVE FAN DRIVE 1 RADIATOR
-4- Output signals
| OPERATE KEY SWITCH
-4- Valve fan drive 1 radiator
| 0 | 1 |
Level 4: Inputs - Outputs / DIGITAL-OUTPUTS
/ Y14b-2 VALVE FAN DRIVE 2 RADIATOR
-4- Output signals
| OPERATE KEY SWITCH
-4- Valve fan drive 2 radiator
| 0 | 1 |
Level 4: Inputs - Outputs / DIGITAL-OUTPUTS
/ Y17 VALVE PUMP REGULATION QMIN
-4- Output signals
| OPERATE KEY SWITCH
-4- Valve pump regulation Qmin
| 0 | 1 | Qmin
Level 4: Inputs - Outputs / DIGITAL-OUTPUTS
/ Y17a VALVE WARMING-UP TIME 1/2 QMAX
-4- Output signals
| OPERATE KEY SWITCH
-4- Valve warming-up time
| 0 | 1 | 1/2 Qmax
Level 4: Inputs - Outputs / DIGITAL-OUTPUTS
/ Y53-1 Y53-2 GEAR OIL COOLER 1 / 2
BACK - PRESSURE
-4- Output signals
| OPERATE KEY SWITCH
-4- Cooler 1 Y53-1 (A13.3):
| 0 | 1 | Cooler 2 Y53-2 (A13.4):
166
(medium speed)
Y14b-1 (A3.7):
(medium speed)
Y14b-2 (A3.8):
Y17 (A1.4):
Y17a (A1.6):
OPERATION