Product Manual

16
PART 7: ELECTRICAL/LIGHTING TESTING
Complete the pretesting checklist prior to all testing procedures.
The MUTT
®
is microprocessor controlled and features a special diagnostic fi rmware,
designed to seamlessly integrate with your preferred methods of testing. The MUTT
®
will power the selected electrical circuits and instantly alert you to any signs of a faulty
condition. To properly utilize the diagnostic features, a complete scan of the
trailer’s electrical system should be performed at the front of the trailer using the
MUTT
®
prior to a walk-around inspection. If any wiring faults are present, the MUTT
®
will blink or sound, alerting you to the issue. Only a one-time, walk-around/visual
inspection is needed to confi rm that each individual light bulb is properly illuminating.
NOTE: Some advanced functions may not be listed on the face panel, so it’s
important to read the manual in its entirety to ensure that you are getting the full use
of this diagnostic system.
7.1 SELECTING A CIRCUIT
Circuits can be selected for testing manually, via remote control or by initiating Auto
Cycle Mode.
OPERATING WITH MANUAL CONTROL
1. Turn the control knob to select a circuit. The control knob
is automatically set to Ground Integrity when power is
turned on.
OPERATING WITH THE REMOTE CONTROL
1. Press and release the UP ARROW to select the next
circuit in clockwise rotation.
2. Press and release the DOWN ARROW to select the next
circuit in a counterclockwise rotation.
AUTO CYCLE MODE
Auto Cycle Mode automatically tests one circuit at a time
in a clockwise rotation.
1. Press and release the control knob. The Auto Cycle
Indicator should illuminate.
2. A fi ve second delay commences before power is
automatically applied to the fi rst circuit.
3. Circuits are automatically tested one at a time in a clockwise rotation, starting from
the Ground Integrity Indicator.
4. To cancel Auto Cycle Mode, momentarily press and release or turn the control knob.
NOTE: Auto Cycle Mode does not work when ABS or Brake Light Circuits are selected.
25
8.4 ACTUATING AIR BRAKES
This feature allows you to see the slacker adjustments and the pushrod travel in real
time. Brakes can be activated manually or with the remote control.
ACTUATE BRAKES MANUALLY
1. Charge the Emergency Side to the desired working pressure and leave both the
Emergency and Service Side Air Ball Valves in the OPEN position.
2. To engage the brakes, push the Service Side Brake Control Switch to
PRESSURIZE.
3. To disengage brakes, push Service Side Brake Control Switch to EXHAUST.
4. Repeat as necessary.
ACTUATE BRAKES WITH REMOTE CONTROL
1. Charge the Emergency Side to the desired working pressure.
2. With both Air Ball Valves in OPEN position, set the Service Side Brake Control
Switch to REMOTE.
3. Point the remote in the general direction of the MUTT
®
.
4. Press the ON/OFF once to engage the service air brakes.
5. Press the ON/OFF again to disengage the brakes.
6. Repeat as necessary.
Engage Brakes Disengage Brakes
Press ON/OFF Button
Set Service Side and Emergency Air Ball Valves to Open