Operation - Section 3 OM3006.2 04/98 Page 3-16 Operator Cab and Controls RADIO SPEAKERS AIR CLEANER VACUUM GAUGES Radio Speakers (9, Figure 3-1) for the AM/FM Stereo radio are located at the far left and right of the overhead panel. The air cleaner vacuum gauges (14, Figure 3-1) provide a continuous reading of maximum air cleaner re- striction reached during operation. The air cleaner(s) should be serv- iced when the gauge(s) shows the following maximum recommended restriction: ‘‘MOM’’ DISPLAY SCREEN This panel (10, Figure 3-1) contains an electronic dis- play to provide the operator or service technician with important messages concerning selected truck func- tions. Cummins Engine: . . .
25 inches of H 2 O Vacuum. Refer to ‘‘ELECTRONIC DISPLAYS AND MESSAGES’’ later in this Section, for a detailed description of the messages provided and the functions monitored by this display. NOTE: After service, push the reset pin on the face of the gauge to allow the gauge to return to zero . PAYLOAD METER The Payload Meter (15, Figure 3-1) is used to provide management with operational data such as tonnage hauled and cycle times. Refer to Section 5, Optional Equipment, for a more complete description of the payload meter and its functions. WARNING ALARM BUZZER This alarm (11, Figure 3-1) will sound when activated by any one of several truck functions.
Refer to ‘‘INSTRUMENT PANEL AND INDICATOR LIGHTS’’, for a detailed description of functions and indicators that will activate this alarm. WINDSHIELD WIPERS CAB RADIO The windshield wipers (16, Figure 3-1) are powered by an electric motor. Refer to ‘‘TURN SIGNAL / HEAD- LIGHT DIMMER LEVER’’, for a description of the wind- shield wiper and washer controls. This panel will normally contain an AM/FM Stereo radio (12, Figure 3-1). Refer to Section 5, Optional Equipment, for a more complete description of the radio and its functions. Individual customers may use this area for other pur- poses, such as a two-way communications radio.
PMC INTERFACE CONNECTOR The ‘‘PMC’’ Interface Connector (13, Figure 3-1) is used to communicate data between a computer and the PMC. Refer to the Shop Manual, Powertrain Management Controller section, for a more complete description of the PMC and its functions.