INSTRUMENTS AND CONTROLS

The following optional listed alphabetical order , may appear Panel D , shown , page

• Accessory Switch (Battery Power) – This switch may used power optional accessory equipment that requires battery voltage, with the key switch turned OFF .

• Accessory Switch (Ignition Power) – This switch may used power optional accessory equipment that requires ignition voltage, with the key switch turned ON.

• Air Suspension Control Switch – This switch exhausts the air from the air bags the may used when coupling uncoupling

Caution

When eparing connect a tractor a trailer , make sur e that the height the 5th wheel matches the height the underside the trailer Failur e will r esult the trailer being impr operly After the trailer has been coupled and the trailer landing gear has been make sur e that the 5th wheel jaws have operly engaged the trailer king pin, and ther e gap between the 5th wheel plate and the bottom the trailer .

Caution

DUMP BODY : Always exhaust the air the bags befor e raising the dump body otect the air bags and impr ove chassis stability while dumping. the dump body raised while the air suspension essurized, damage the air bags may r esult.

Caution

not drive the vehicle with the air bags Repr essurize the air bags befor e driving the

Note: Engine speed and road speed will automatically limited the vehicle moved with the air bags

For information concerning trailer coupling and refer the OPERA TION section this

Instruments And Controls

• Automatic T raction Control Switch/Heavy Mud/Snow – Activate for increased traction control heavy mud snow (See T raction Control TC) (If , page 160 the OPERA TION section this manual for more When the operator presses the top the rocker the heavy mud/snow function A indicator lamp blinks continuously The A lamp stops blinking when the A mode switch pressed again ignition key

Caution

sur e deactivate the heavy mud/snow function when longer needed. Continued operation with the heavy mud/snow function active will r esult vehicle damage. after a r easonable amount time (no mor e than five minutes) the vehicle still not moving, deactivate the A and put chains.

• Body W arning Lamp – The Body Lamp illuminates a RED warning icon the "D" panel alert the driver a body function defined the bodybuilder . example, the body warning lamp will illuminate alert the driver that the dump body not fully down.

• Daytime Running Lights (DRL) Override Switch – Daytime Running Lights (DRL) come standard all MACK vehicles and can optioned w i t h w i t h o u t override switch. When the DRL override switch has been specified, dif ferent conditions can selected that cause the DRL automatically activate, DRL can automatically turned when the parking brake released, the engine running both. Only one these choices may selected. Using DRL will illuminate the low beam headlamp bulbs a slightly reduced intensity . The DRL function will monitor high beams well. the high beams are activated, the DRL will temporarily turned f until high beam use ceases.