MK Products Prince XL MM Com ACWC - Manual (Page 17)

Prince ® XL Millermatic Compatible Gun Owner's Manual - Page 10
Testing The Gun
Reference the “X” clocked Amphenol diagram
the Prince XL Millermatic Compatible electrical diagram
for information about pin-outs and locations.
Motor Check
Remove the gun connector from the cabinet.
Using the gun Amphenol connector, check the resistance across pins “A”
and “B” (motor leads).
If an open circuit (more than K ohms) or short exist (less than 2 ohms)
exists, check the motor leads and motor independently.
Testing the Gun Potentiometer
Using the amphenol connector, check the resistance across pin “F”
(wiper) and pin “E”. The resistance should vary from 0 - 5K ohms as the
potentiometer is turned.
Check the resistance across pin
“F” (wiper) and pin “H”. The resistance
should vary from 5K - 0 ohms as the potentiometer is turned.
Testing the Micro Switch
Using the amphenol connector, check for continuity across pins “D” and “G”
when the trigger is pressed.