Testing The Torch - Lincoln Electric PRINCE IM818 Operator's Manual

T T T
ESTING HE ORCH
M C
OTOR HECK
Remove the torch connector from the cabinet.
Using the torch Amphenol, check the resistance across pins "A" and "B"
(motor leads). The resistance across the motor should be between 5-10
ohms.
If an open circuit or short exist, check the motor leads and motor indepen-
dently.
T P
ESTING THE OTENTIOMETER
Using the torch Amphenol, check the resistance across pin "D" (wiper) and
pin "C". The resistance should vary from 0 - 5K ohms.
Check the resistance across pin "D" (wiper) and pin "G". The resistance
should vary from 5K - 0 ohms.
T M S
ESTING THE ICRO WITCH
Using the torch Amphenol, check for continuity across pins "E" and "F" when
the trigger is pressed.
Prince XL ® - Owner's Manual - Page 16