Operator Cab and Controls - Section 32 08/11 OM3212 Page 32-16 Air conditioner/heater vent (4, Figure 32-7) swivels on a vertical axis to direct air toward or away from the operator. Air flow (up, down, on, off) through the vent is controlled by manually opening/closing or turning the louver. Air Conditioner & Heater Vent Center Display Panel Center display panel (4, Figure 32-6) consists of a gauge and monitor module (1 - 27, Figure 32-8), with an odometer module (29) and a service/hour meter module (28). Liquid crystal is used for the display area.
ASR Cut (Traction Control) Switch (Option) The gauge and monitor module and the speedome- ter module each have a microcomputer to process and display the signals from the sensors. ASR cut switch (5, Figure 32-7) is used to activate or de-activate the optional traction control system. The monitors and gauges inside the monitor module and speedometer module are actuated by the signal from the gauge and monitor module, and the odome- ter is actuated by signals from the speedometer mod- ule. The rocker switch is an ON/OFF type switch. Depressing the top turns the ASR system off. An amber light will illuminate the switch to notify the operator that ASR is inactive.
Depressing the bottom of the switch turns the ASR system on. A green light will illuminate the switch notifying the operator that traction control is active. The following pages will identify each element of the center display panel and detail the function and pur- pose for the operator. When ASR (Automatic Spin Reduction) is active, the system monitors individual wheel speeds. If it deter- mines one of the rear wheels is slipping (losing trac- tion) during accel, the brake is applied to the rear wheel with the higher speed. Air Pressure Monitor (Not Used) Air pressure monitor (1, Figure 32-8) is not used on this truck. NOTE:
If both rear wheels are slipping approximately the same amount, the system will not provide any braking to the wheels. In this situation, the operator must reduce the throttle angle to prevent slippage. Air Pressure Gauge (Not Used) Air pressure gauge (2, Figure 32-8) is not used on this truck. Coolant Temperature Monitor Coolant temperature monitor (3, Figure 32-8) indicates a rise in the cooling water temperature. When the monitor lamp flashes, run the engine with no load at 1200-1500 rpm until the green range of the engine water temperature gauge lights.