IPA Tools 9007A Smart MUTT Head - Manual (Page 9)

9
OPERATING INSTRUCTIONS
This section contains information on the usage of the #9007A Series Mobile Universal
Trailer Tester. (MUTT®)
FUNCTIONAL DESCRIPTIONS
The Mobile Universal Trailer Tester (MUTT®) is a fleet maintenance and diagnostic
aid for trailer electrical operations, wired to North American style 7 round pin
configuration.
A. CONTROL KNOB (Fig. 2)
Knob activates all electrical test modes and circuits to be diagnosed.
• Manual Mode
• Auto Cycle Mode
• Warning Sound Bypass • “All Circuits On” Mode
• Brake Light Exercise Mode
B. VOLTAGE INDICATOR (Fig. 2)
Shows battery supply voltage integrity.
• Operating Voltage: 12/24 Volt DC
• Voltage Cut Off: 11/23 Volt DC
C. GROUND INTEGRITY (Fig. 2)
Large green LED above the Control Knob indicates ground status. Ground integrity
is automatically verified when power is turned on. If a ground fault is indicated, attach
the supplied 10 foot ground cord to the chassis of the trailer. If the fault clears, the
problem is in the chassis ground. If the fault continues, the problem is with the ground
return in the plug.
D. AUTO CYCLE INDICATOR (Fig. 2)
Illuminates when Auto Cycle is engaged.
Auto Cycle tests all circuits in 5 second intervals in clockwise rotation (you cannot ac-
cess Auto Cycle Mode when in Auxiliary or Brake Mode). To enter Auto Cycle Mode,
press control knob once and then a second time to cancel Auto Cycle Mode.
Fig. 2 – Control & Information Panel
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