26
maintenance
NOTICE
If using Teflon tape, be certain no tape gets inside any plumbing to
prevent the possibility of a plugged spray nozzle.
a. SMALL FRAME:
1. If the test is greater than a #3 smoke, turn the shutter arm clockwise
to increase the air flow into the combustion chamber.
2. If the test is yellowish in color, turn the shutter arm counterclockwise
to decrease the air flow into the combustion chamber.
b. LARGE FRAME:
1. If the test is greater than a #3 smoke, turn the shutter arm
counterclockwise to increase the air flow into the combustion
chamber.
2. If the test is yellowish in color, turn the shutter arm clockwise to
decrease the air flow into the combustion chamber.
3. Hold onto the air shutter adjusting arm and loosen the locking
nut. Move the shutter in 1/8” increments and retighten the locking nut
after each 1/8” movement.
4. Trigger the gun on and off slowly to make sure there is
proper ignition. Slight or no puffing on the ignition, and a smoke
spot test of less than #3 smoke is good.
5. Repeat steps 2 and 3 until step 4 is attained.
LEAKS: Promptly eliminate any leaks found in the pumping system by
removing suspect parts, applying thread sealant to the threads and
reinstalling.
