Testing the gun – MK Products Prince XL Fronius Com ACWC User Manual

Page 17

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Prince

®

XL Fronius Compatible Gun Owner's Manual - Page 10

Testing The Gun

Reference the 9-pin rectangular diagram

on the Prince XL

Fronius Compatible

electrical diagram

for information about pin-outs and locations.

Motor Check

Remove the connector from the cabinet.

Using the 9-pin connector, check the resistance across pins

“1” and “6”

(motor leads). The resistance across the motor should be between

5 - 10

ohms as the potentiometer is turned.

If an open circuit or short exist, check the motor leads and motor

independently.
Testing the Gun Potentiometer

Using the 9-pin connector, check the resistance across pin

“3” (wiper) and

pin

“2”. The resistance should vary from 0 - 5K ohms as the potentiometer

is turned.
Check the resistance across pin

“3” (wiper) and pin “7”. The resistance

should vary from

5K - 0 ohms as the potentiometer is turned.

Testing the Micro Switch

Using the 9-pin connector, check for continuity across pins

“9” and “5” when

the trigger is pressed.

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