Tweco Spray Master Series, Safety And Operating Instructions Manual, Page: 19 / 36

SAFETY AND OPERATING INSTRUCTIONS
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SECTION 5: OPTIONAL FEATURES
In addition to the standard Spray Master MIG gun, TWECO also makes a dual schedule gun and one with a locking
trigger, only offered in 350 and 450 AMP guns.
5.01 DUAL SCHEDULE
A rocker-style switch, located at the top of the handle, allows the user dual schedule functionality. To operate:
1. Press and hold trigger.
2. Press switch to change mode.
3. To end operation, hold trigger and press switch back to original position.
5.02 LOCKING TRIGGER
A steel pin is located on the side of the handle, in close proximity to the trigger.
To lock trigger:
1. Press and hold trigger.
2. Press steel pin down completely and release trigger to lock.
3. To unlock, press trigger completely and steel pin will release out to original position.