Operation - Section 3 OM3020.3 02/01 Page 3-36 Instrument Panel & Indicator Lights A3. Parking Brake This amber parking brake indicator will illuminate when the parking brake is applied. Do not attempt to drive truck with parking brake applied. This amber service brake indicator light will illuminate when the service brake pedal is applied or when wheel brake lock or emergency brake is applied. Do not attempt to drive truck from stopped position with service brakes applied, except as noted in “Operating Instructions, Starting On A Grade With A Loaded Truck”. B3. Service Brake C3. Body Up This amber Body Up indicator, when illuminated, shows that the body is not completely down on the frame.
The truck should not be driven until body is down and light is off. D3. Dynamic Retarding This amber dynamic retarding indicator light illuminates whenever the retarder pedal (or retarder lever) is operated, RSC (Retarder Speed Control) is activated, or the automatic overspeed retarding circuit is energized, indicating the dynamic retarding function of the truck is operating. E3. Stop Engine This RED engine monitor warning light will illuminate if a serious engine malfunction is detected in the electronic engine control system. Electric propulsion to the wheelmotors will be discontinued and the maximum engine speed will be reduced to 1250 RPM.
Dynamic Retarding will still be available if needed to slow or stop the truck. Stop the truck as quickly as possible in a safe area and apply parking brake. SHUT DOWN THE ENGINE IMMEDIATELY. Additional engine damage is likely to occur if operation is continued. If engine governor senses an overspeed condition, the engine air flaps will close and the engine will be shutdown . If engine flaps are left closed for any reason, the red warning light will illuminate, and engine will not start. Low Oil Pressure - red warning light will illuminate, but engine does not shutdown. Low Coolant Level - red warning light will illuminate, but engine does not shutdown.