OM3214 Operation - Section 3 Operator Cab and Controls Page 32-5 INSTRUMENT PANEL The Instrument Panel (7, Figure 32-1) includes a wide variety of switches, gauges, and indicators. Refer to INSTRUMENT PANEL AND INDICATOR LIGHTS, for a detailed description of function and location of these components. RADIO SPEAKERS Radio Speakers (9, Figure 32-1) for the AM/FM Ste- reo radio are located at the far left and right of the overhead panel. WARNING ALARM BUZZER GRADE/SPEED WARNING CHART This alarm (10, Figure 32-1) will sound when acti- vated 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. The Grade/Speed WARNING chart (8, Figure 32-1) provides the recommended MAXIMUM truck speeds for descending various grades with a loaded truck. CAB RADIO This panel will normally contain an AM/FM Stereo radio (11, Figure 32-1). Refer to Section 7, 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. WARNING LIGHTS DIMMER CONTROL This control knob (12, Figure 32-1) permits the oper- ator to adjust the brightness of the Warning Indicator Lights.
This Control may not be on all Model trucks. WARNING INDICATOR LIGHT PANEL This panel (13, Figure 32-1) contains an array of indi- cator lights to provide the operator with important sta- tus messages concerning selected truck functions. Refer to INSTRUMENT PANEL AND INDICATOR LIGHTS, for a detailed description of these indica- tors. AIR CLEANER VACUUM GAUGES The air cleaner vacuum gauges (14, Figure 32-1) provide a con- tinuous reading of maximum air cleaner restriction reached dur- ing operation. The air cleaner(s) should be serviced when the gauge(s) display the following MAXIMUM recommended restriction: FIGURE 32-6.
GRADE SPEED CHART The operator should reference this chart before descending any grade with a loaded truck. Proper use of Dynamic Retarding will maintain a safe speed. DO NOT exceed these recommended MAXIMUM speeds when descending grades with a loaded truck. This decal may change with OPTIONAL truck equip- ment such as: wheel motor drive train ratios, retarder grids, tire sizes, etc. Komatsu Engine: . . . . . . 25 inches of H2O vacuum. NOTE: After service, push the reset button on face of gauge to allow the gauge to return to zero. ALWAYS refer to this decal in the operator's cab , and follow these recommendations for truck opera- tion.
WINDSHIELD WIPERS The windshield wipers (15, Figure 32-1) are powered by an electric motor. Refer to OPERATOR CAB AND CONTROLS, for a location and description of the windshield wiper and washer controls.