HOTSY 771/772 • 8.941-246.0 • Rev. 12/10
OPERATOR’S MANUAL
PRESSURE WASHER
14
OPERATION INSTRUCTIONS
at any one time or damage to pump may occur.
WARNING: If ignition or flame failure is experienced,
discontinue use of burner at once by turning burner
switch off. Have cause of failure corrected by an
authorized service technician. After corrections are
made, refer to OPERATION for start-up instructions.
1. Connect electrical cord and test GFCI device.
2. Turn on water supply.
3. Turn on gas supply.
4. Grasp wand firmly. Turn on pump switch.
5. Turn on burner switch, and adjust thermostat to
desired temperature.
6. Squeeze trigger of trigger gun. The pilot will auto-
matically ignite, quickly followed by the firing of the
burner ring. If ignition does not take place within 5 to 7
seconds see
Troubleshooting Guide in this manual.
When the trigger of the trigger gun is released or ther-
mostat setting is reached, the burner will turn off.
To Clean
DANGER: Do not place hands or fingers in front of
high pressure spray. Bodily injury may result.
1. Insert the detergent inlet line into the container of
mixed detergent. The detergent metering valve on the
chassis allows the detergent flow to be controlled.
2. Adjust the width of the pressure nozzle spray pattern
to meet your cleaning needs. Adjustment is made
by rotating the outer housing of the pressure nozzle,
(refer to
Figure 9). The spray pattern can be adjusted
from 0 degrees solid stream to 80° fan spray. Release
the trigger of the trigger gun prior to making any spray
pattern adjustments.
3. Wash from the bottom to the top, using side to side
motions. This washes away heavy dirt and allows the
detergent to soak as you work toward the top.
4. Do not wash at a 90
°
angle to work (straight at
it). This will allow water to splash back at you and
reduces your cleaning power. Wash at a 30
°
to 60
°
angle to the work. This will allow the water to splash
away from you and the water will wash the dirt away
faster and easier.
5. Use the full width of the spray pattern to wash in a
wide path. Overlap spray paths for complete cover-
age. Wash from side to side, using slow, steady
motions.
6. The nozzle should be 12" to 24" from work, closer
for tough areas. Be careful on painted or delicate
surfaces, the pressure may damage surface if nozzle
is too close.
7. Small parts should be washed in a basket so the
pressure does not push them away. Larger, lightweight
parts should be clamped down so the pressure does
not push them away.
8. To rinse, turn the detergent metering valve clockwise.
Always rinse with cold water after using detergent.
Rinse from the top to the bottom to prevent detergent
from dripping onto a rinsed area. For the best results,
contact your Hotsy dealer to help you select the best
detergent for your application.
To Stop
NOTE: If the machine is unplugged, the GFCI must
be reset prior to use. Always test GFCI before each
use.
1. If detergents were used, draw clean water through
the detergent inlet line to purge detergent. Failure to
do so may clog detergent metering valve.
2. If burner was used, turn OFF burner switch and
allow pump to run cold water through coil for several
minutes.
3. Turn OFF pump switch.
4. Turn OFF water supply.
5. Squeeze trigger of trigger gun to relieve system pres-
sure.
6. Turn off main shut-off valve on gas supply.
Figure 9 - Pressure Nozzle
Solid
Stream
Fan
Spray
Outer
Housing
