OM3223 Operation - Section 32 Operator Cab and Controls Page 32-13 Engine Shut down Switch with Timer Delay Engine shut down switch (2) is a three-position rocker-type switch (OFF-ON-MOMENTARY). Refer to Operating Instructions section, delayed engine shutdown procedure, for a complete detailed opera- tion of this switch. If the engine does not turn off with key switch, use the engine shutdown switch on the operator cab center console. Hold this switch down until the engine stops. The ground level shut down switch will also stop the engine during this time- out. 1.
Press the top of the switch to the ON (center) position, then press firmly to the Momentary (upper position) and hold this position briefly to activate the five minute idle timer (switch is spring- loaded to return to ON posi- tion when released). Fog Lights (Optional) Fog lights (3) are optional equipment that are useful in foggy conditions and heavy rain. Pressing the top of the rocker switch turns the lights on. Pressing the bot- tom of the switch turns the lights off. 2. When the engine shutdown timer has been acti- vated, the timer delay indicator light in the over- head display panel (C4, Figure 32-12) will illuminate to indicate that the timing sequence has been started.
The engine will continue to run at idle rpm for approximately five minutes to allow for proper engine cool-down before stop- ping. Ladder Light Switch Ladder light switch turns the lad- der lights (4) on or off after or before using ladder. Pressing the top of the rocker switch turns the lights on. Pressing the bottom of the switch turns the lights off. Another switch is mounted at the front left of truck near the base of ladder. 3. The engine shutdown Timer switch does not turn off the 24 vdc electric power. Turn Key switch counterclock- wise to the OFF position to cause the engine to turn off when the timing sequence is complete.
When the engine stops after the five minute idle period, the hydraulic bleeddown timer will be activated and turn off the 24 vdc electric circuits con- trolled by the key switch. Manual Backup Switch Manual backup switch (5) allows the backup lights to be turned on providing added visibility and safety when the selector switch is not in the REV position. When the switch is pressed toward the on position, the manual backup light indicator (B4, Overhead Panel) will be illuminated. The engine will not shut down, if key switch is not turned to the OFF position. Panel Illumination Lights Panel illumination lights (6) provide illumination for the instrument panel.
Brightness is controlled by panel light dimmer switch (28). NOTE: To cancel the five minute idle timer sequence, press the timer delay shutdown switch to the OFF (lower) position. • If the key switch is in the OFF position, the engine will stop. Cab Air Conditioner / Heater Vents Cab air conditioner / heater vents (7) are spherically mounted and may be directed by the operator to pro- vide the most comfortable cabin air flow. • If the keyswitch is in the ON position, the engine will continue to operate.