Operation - Section 3 OM3024.3 8/00 Page 3-34 Instrument Panel and Indicators Central Warning Lamp (Red Convex Lens) REAR OF OPERATOR CAB The Central Warning Lamp Monitor lamp (20, Figure 3-12) will illuminate if any of the monitor lamps in the L.H. pod (Figure 3-12) are activated. This lamp is also activated if a fault is registered on the “MOM” display. The following components are located behind the op- erator and passenger seats across the back wall of the operator cab (Refer to Figure 3-13): This lamp flashes, and at the same time an alarm buzzer sounds intermittently , if an abnormality has occurred in any one of the following systems: 1.
Circuit Breaker Panel This panel contains all of the electrical circuit breakers on the truck. Coolant Temperature Monitor; Torque Converter Oil Temperature Monitor; Retarder Oil Temperature Monitor; Engine Oil Pressure Monitor; High Engine Oil Temperature; High Engine Blowby Pressure; High Transmission Lube Oil Pressure; Battery Charging Monitor; Parking Brake Monitor; Body Float Monitor; Automatic Transmission Monitor (Mechatronics); Other Mechatronics Monitor; or Fuel Level Monitor. 2 & 3. Relay Boards These panels contain relays for various electrical circuits on the truck. Refer to the Service/Shop Manual for specific information regarding the relay boards. 4.
RCM - Retard Control Monitor This panel controls and monitors the fully hydrau- lic retarder system. Refer to the Service/Shop Manual for specific information regarding this device. 5. RCM Data Port This lamp will also flash and the alarm buzzer will sound, if the parking brake is applied and the range selector lever is not at Neutral . This is a connector to be used when communica- tions are required between the RCM and a per- sonal computer. 6. ASC - Automatic Suspension Controller ( Op- tional ) NOTE: The warning lamp and buzzer will not actuate when "MOM" detects a problem and displays the ac- tion code "01".
This panel (when installed) controls and monitors the Varible Rate Suspension units. Refer to the Service/Shop Manual for specific information regarding this device. AC/Heater Vent The AC/Heater vent (21, Figure 3-12) is provided for circulation of cooled or heated air through the cab. 7. ATC - Automatic Transmission Controller This panel controls and monitors the Komatsu fully automatic transmission. It controls the Shift schedules and Lock-up Clutch modulation and monitors numerous other sensor inputs. Refer to the Service/Shop Manual for specific information regarding this device. 8.
PMC - Powertrain Management Controller This panel controls, monitors, and manages all of the other monitors and controllers listed above. Refer to the Service/Shop Manual for specific information regarding this device. 9. Terminal Strips - Terminals for various electrical circuits. Refer to the Service/Shop Manual Elec- trical Schematic for specific information.