Driver Controls have electronic shift controls that can be pro- grammed to allow the use of different numbers of geared speeds. See Fig. 4.22 . To turn the windshield wipers on at a constant speed, press the upper half of the ON–WIPER–INT DELAY switch. Press the upper half of the HIGH/LOW switch to select high speed; press the lower of the HIGH/ LOW switch to select low speed. To turn the windshield wipers off, move the WIPER–INT DELAY switch to the middle (WIPER) position. 1 To turn the windshield wipers on intermittently, press the lower half of the ON–WIPER–INT DELAY switch. The default intermittent interval is six seconds.
2 The interval can be changed by turning the wipers off for a specific period of time, then pressing the lower half of the ON-WIPER-INT DELAY switch again to activate the desired interval. See Table 4.1 for settings. Setting Intermittent Wiper Operation Switch Off Interval Wiper Interval Less than 1 second 1 second 10/31/94 f600369a 1 to 25 seconds Interval set to the period switch is in the Off position (1 to 25 seconds) 25 to 50 seconds 25 seconds More than 50 seconds 6 seconds 1. Indicator Panel 2. MODE ID Lamp Fig.
4.22, Allison Shift Selector Windshield Wiper Controls Table 4.1, Setting Intermittent Wiper Operation The windshield wipers are operated by two rocker switches located on the lower right-hand dash control panel. See Fig. 4.23 . The 3-position ON–WIPER– INT DELAY switch turns the wipers on and off, and controls intermittent wiper operation. The HIGH/LOW switch controls constant speed wiper operation. The windshield washers are operated by a rocker switch labeled WASHER, located on the lower right- hand dash control panel. See Fig. 4.23 . Press and hold the upper half of the washer switch to spray the windshield. Release the switch when enough washer fluid has been sprayed on the windshield.
Brake Controls NOTE: See Chapter 12 for detailed information about brake systems. ON HIGH WASHER Parking Brake Control Valve LOW −WIPER− The parking brake control valve applies both the trac- tor and trailer spring parking brakes. See Fig. 4.24 , Item 2. Pushing the knob in releases the spring park- ing brakes. INT DELAY If the trailer is not equipped with spring parking brakes, pulling out the parking brake valve applies the tractor parking brakes and the trailer service brakes. 08/23/2011 f545824 Fig. 4.23, Windshield Wiper Switches 4.11