HOT WATER PRESSURE WASHER
OPERATOR’S MANUAL
13
97-6131, 97-6140 • Rev. 3/04
Air Adjustment
Machines are preset and performance tested at the fac-
tory — elevation 100' above sea level. A one time cor-
rection for your location will pay off in economy, perfor-
mance and extended service life. If a smoky or eye-burn-
ing exhaust is being emitted from the stack, two things
should be checked.
First, check the fuel to be certain that kerosene or No. 1
home heating fuel is being used.
Next, check the air adjustment on the burner. An oily, black,
smoky fire indicates a lack of air and the air band should
be moved to allow the air to flow through the burner. Sharp,
eye-burning white fumes indicate too much air flowing
through the combustion chamber. The air band should be
moved to allow less air to flow through the burner.
To adjust: start machine and turn burner ON. Loosen the
two locking screws found in the air shutter openings (refer
to illustrations) and close air shutter until black smoke ap-
pears from burner exhaust vent. Note air band position.
Next, slowly open the air shutter until white smoke just
starts to appear. Turn air shutter halfway back to the black
smoke position previously noted. Tighten locking screws.
If the desired position cannot be obtained using only the
air shutter, lock the air shutter in as close a position as can
be obtained, then repeat the above procedure on the air
band setting.
FUEL AIR ADJUSTMENT: WAYNE
Air Band
Adjustment
Screw
Pressure
Gauge Port
Air Band
Fuel Pump
Pressure
Adjustment
Screw
FUEL AIR ADJUSTMENT: BECKETT
Air Band
Transformer
Fuel Pump
Pressure
Adjustment Screw
Air Band
Adjustment
Screw
Pressure
Gauge Port