OM3020.3 02/01 Operation - Section 3 Instrument Panel & Indicator Lights Page 3-25 INSTRUMENT PANEL AND INDICATOR LIGHTS CONTROL SYMBOLS Many control functions are identified with “International” symbols that the operator should learn to recognize immediately. The operator must understand the function and operation of each instrument and control. This knowledge is essential for proper and safe operation of the machine. The following symbols are general indicators and may appear in multiple locations and combinations on the instrument panel. This symbol may be used alone or with another symbol. This symbol identifies the “Off” position of a switch or control.
This symbol when it appears on an indicator or control identifies that this indicator or control is NOT used. This symbol may be used alone or with another symbol. This symbol identifies the “On” position of a switch or control. This symbol identifies a rotary con- trol or switch. Rotate the knob clockwise or counterclockwise for functions. This symbol identifies the “Pushed- In” position of a push-pull switch or control. This symbol identifies a switch used to test or check a function. Press the switch on the side near the sym- bol to perform the test. This symbol identifies the “Pulled- Out” position of a push-pull switch or control.
INSTRUMENT PANEL (Figure 3-6) The operator must understand the function and opera- tion of each instrument and control. Control functions are identified with “International” symbols that the op- erator should learn to recognize immediately. This knowledge is essential for proper and safe operation. Items that are marked OPTIONAL do not apply to every truck.