1800 SERIES PRESSURE WASHER
OPERATOR’S MANUAL
11
Hotsy 1800
•
97-6244 Rev. 7/06
to clean
WARNING: Risk of injection or severe injury - Keep clear
of nozzle - DO NOT direct discharge stream at per-
sons - This machine is to be used only by qualified
operators.
AVERTISSEMENT: RISQUE D’INJECTION ET DE BLES-
SURES GRAVES. SE TENIR À L’ÉCART DU JET. NE PAS
DIRIGER LE JET DE SORTIE VERS D’AUTRES PER-
SONNES. CONFIER L’UTILISATION DE CE MATÉRIEL
À UN OPÉRATEUR QUALIFIÉ.
1. Refer to the chart in
figure 8.
This machine
has been equipped with three (3) detergent metering
plugs. A red plug has been installed in the detergent
screen. This plug has been factory drilled with a #60 drill
bit. The chart indicates that a #60 hole will allow a 1%
detergent concentration, (or a 1/100 detergent-to-water
ratio). The other two (2) detergent plugs have not been
drilled. Use the chart to determine the hole size needed
to achieve a desired detergent concentration. Install the
plug which will provide the correct concentration for the
detergent to be used before proceeding.
2. Insert detergent inlet line into container of mixed
detergent. Open detergent ON/OFF valve. The
detergent will be pulled automatically into the system.
Allow detergent to reach end of wand before pro-
ceeding to step 3.
3. Select pressure nozzle with spray pattern that matches
your cleaning needs. Engage manual trigger lock, refer
to
figure 6
, and install selected nozzle.
4. 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.
5. Do not wash at a 90°
angle to the 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.
6. Use the width of the spray pattern to wash in a wide
path. Overlap spray paths for complete coverage. Wash
from side to side, using slow, steady motions.
7. 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.
8. Small parts should be washed in a basket and larger,
lightweight parts should be clamped down so the pres-
sure does not push them away.
9. Close the detergent ON/OFF valve to permit rinse.
Always rinse with cold water after using detergents.
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
1. If detergents were used, draw clear water through the
detergent line to purge detergent. Failure to do so may
clog detergent injector valve.
2. If burner was used, turn OFF burner switch and
allow pump to run cold water through coil for several
minutes.
3. Turn pump switch OFF.
4. Turn water supply OFF.
5. Squeeze trigger gun open to relieve system pres-
sure.
6. Depress gas control knob slightly and turn to OFF
position.
7. Turn off main shut-off valve on gas supply.
storaGe
DANGER: Do not store flammable liquids (gasoline,
diesel fuel, petroleum, solvents, etc.) near pressure
washer, or in non-ventilated areas.
IMPORTANT: Machine must be stored indoors.
1. Protect from freezing by storing in a heated area,
or by flushing the system with antifreeze (use an
automotive engine antifreeze or windshield washer sol-
vent to antifreeze). To flush the system fill the float tank
with antifreeze and remove pressure nozzle from wand.
Start the machine and allow it to run until antifreeze runs
from the end of the wand. Place wand into float tank and
circulate the solution through system for several minutes.
Open and close the trigger gun several times to circulate
antifreeze through the unloader valve system. Also draw
antifreeze through the detergent inlet line to antifreeze the
detergent system. For added protection after adding an-
tifreeze, disconnect the pressure hose from machine
and remove the coil drain plug (refer to
component
identification
illustration for location). After coil has
drained, replace pressure hose and coil drain plug. If
the pressure washer is not to be used for an extended
length of time, it is recommended that the system be
flushed with antifreeze for rust protection.
Figure 8 - Detergent Metering System
80
70
60
50
40
30
20
.013 .028 .040 .070 .098 .128 .161
.02%
.05%
1%
2%
4%
6%
8%
10%
12%
1/400
1.200
1/100
1/50
1/25
1/16
1/12
1/10
1/8
RATIO
%
DETERGENT CONCENTRATION
DRILL NO.
DRILL SIZE
DETERGENT/WATER
1/8
12%
1/10
10%
1/12
8%
1/16
6%
1/25
4%
1/50
2%
1/100
1%
1/200
.05%
1/400
.02%
DRILL NO.
80 70 60 50 40 30
20
DRILL SIZE
.013 .028 .040 .070 .098 .128 .161
DETERGENT CONCENTRATION
DETERGENT/WATER
RATIO %
