Instruments and Controls Identification responsibility of the driver to adjust the seat to prevent damage to the seat and the cab interior. lever in this position, move the steering wheel up- ward or downward to the desired position. Release the control lever to lock the steering wheel in place. Dome Light Switches WARNING For vehicles with a single dome light mounted on the roof inside of the cab, the light is operated by a three-position switch mounted in the dome light. The switch provides both a low- and a high-intensity set- ting; in the middle position, the dome light is off. Make sure that the control lever is in the locked (neutral) position before driving the vehicle.
Never try to adjust the height of the steering wheel or tilt the steering column while driving the vehicle. Doing so could cause loss of vehicle control, personal injury, and property damage. For vehicles with a single dome light and two reading lights mounted on the roof inside of the cab, each light is operated by its own on/off switch, mounted in the dome light. Warning and Indicator Lights Tilt Steering Wheel All of the standard and optional warning and indicator lights are housed in a lens and bezel assembly, lo- cated above the speedometer and tachometer. The tilt steering wheel ( Fig. 2.18 ) has a tilt range of 15 degrees, and a telescoping range of 2-5/8 inches (67 mm).
A control lever is located just below the turn signal switch on the steering column. For pre-EPA07 vehicles, up to six rectangular indica- tor lights may be installed on the center dash panel between the tachometer and speedometer. See Fig. 2.19 . The pre-EPA07 standard installation in- cludes one parking brake indicator light and two an- tilock braking system (ABS) lights, the tractor warn- ing light and the wheel spin indicator light. One other ABS light, the trailer warning light, is optional. The other two lights represent a variety of optional func- tions that may not be installed on all models.
For EPA07 vehicles, up to ten rectangular indicator lights may be installed on the center dash panel be- tween the tachometer and speedometer. See Fig. 2.20 . The EPA07 standard installation includes three indicator lights for the after treatment device; an engine malfunction indicator light (MIL), a diesel particulte filter (DPF) regen light, and a high exhaust system temperature (HEST) light. Details of the after- treatment lights can be found in Chapter 7 , under the heading EPA07 Aftertreatment System (ATS). The other standard lights are the parking brake indi- cator light, and two antilock braking system (ABS) lights.
The other lights are for optional functions that may not be installed on all models. 1 2 f460309a 03/09/94 1. Control Lever 2. Tilt Wheel Assembly Fig. 2.18, Tilt Steering Wheel Parking Brake Indicator Light After adjusting the seat to the desired ride position, unlock the steering column by pushing the control lever and holding it all the way down. Tilt the steering column to the desired position, then release the con- trol lever to lock the steering column in place. The red parking brake indicator light ( Fig. 2.19 ) comes on whenever the parking brakes are activated and the ignition is on. Additional optional lights may be installed in the cen- ter dash.
To adjust the height of the steering wheel, pull up- ward on the control lever. While holding the control 2.13