Harness/Cable and Connector Protection

T o help protect your s external high amperage electrical cables and connections from corrosion due the fects newer salts (calcium chloride and magnesium chloride) the MACK fering a corrosion inhibitor part 20916273 for purchase through the MACK recommends coating all high amperage (positive and ground) exposed electrical connections a minimum every 6 months , whenever the connector has been The following list contains the recommended connections that should liberally coated with the corrosion inhibitor;

• Battery connections

• Battery main shut f switch connections

• Maxi and/or Mega fuse connections

• All ground stud connections

• Electrical pneumatic pass - thru connections

• All alternator connections

• All starter connections

• Intake preheater and preheater relay connections

• Electrical power inverter connections

All connections should cleaned and free previously applied dust other contaminants prior Allow time for the product dry before use (drying time may vary depending humidity ,

For more information regarding this corrosion inhibitor produced LPS W visit their web site www

Lighting W ARNING

Using incorrect bulbs lamps may result failures that could lead a fire a vehicle accident caused improper

Check all lights the vehicle daily for proper function. Replace burned out inserts and bulbs. Replace any broken cracked side rear reflectors. Headlights should checked for aim least once per year .

Precautions When Installing Electrical Equipment

Connecting electrically powered electrically controlled equipment a vehicle may cause interference with other vehicle electrical electronic equipment (such ABS systems, Rollover Stability Systems, The amount interference depends upon the operating frequency any new signals and the degree which transient signals are coupled the vehicle

Note: Whenever new electrical equipment the obligation the installer ensure that the new equipment does not interfere with the proper operation all other electrical systems the new electrical equipment a vehicle checkout procedure should

1 Perform the checkout procedure under the following conditions:

• Engine running

• Brake system air pressure operating range

• V ehicle stationary

• Brake pedal fully depressed

2 Operate the new equipment under all running and sutdown

3 Listen for signs air exhausting from the ABS modulator valves (which indication interference condition).

4 Correct all interference conditions before operating the Note: The center pin the standard seven - pin trailer electrical connector has been standardized the dedicated connection for uninterrupted power for trailer ABS. This pin always hot when the tractor ignition turned on.

Danger

Some trailers manufactured prior the trailer ABS regulations may use the center pin power certain trailer auxiliary The possibility exists that this auxiliary equipment may unexpectedly activated the truck tractor electrical resulting personal injury damage Caution must used when connecting the trailer electrical connector ensure that power the center pin will not unintentionally activate any trailer auxiliary