Hotsy 1075BE Series User manual

8.931-236.0
OPERATOR’S MANUAL
 1.110-565.0 1.110-566.0  1.110-567.0
For technical assistance or the hotsy dealer nearest you,
consult our web page at www.hotsy.com
CHAUD!
89312360-1
965B,
1075BE, 1080BE
L
I
S
T
E
D
®

1075BE (1.110-566.0) SPECIFICATIONS
Pump Volume At Pump Head: 3.8 GPM
 Pump Pressure At Pump Head: 3500 PSI
 Burner Type: Fuel Oil Fired / 385,800 BTU/HR
 Burner Fuel Pressure: NOT TO EXCEED 200 PSI
 Burner Exhaust Stack: 8"
 Machine Power: Honda GX390
 Machine Weight: 560 Lbs.
 Shipping Weight: 650 Lbs.
 Machine Dimensions:
Length = 42" , Width = 27.5" , Height = 39"
965B (1.110-565.0) SPECIFICATIONS
Pump Volume At Pump Head: 3 GPM
 Pump Pressure At Pump Head: 3000 PSI
 Burner Type: Fuel Oil Fired / 248,500 BTU/HR
 Burner Fuel Pressure: NOT TO EXCEED 200 PSI
 Burner Exhaust Stack: 8"
 Machine Power: Honda GX270
 Machine Weight: 535 Lbs.
 Shipping Weight: 625 Lbs.
 Machine Dimensions:
Length = 42" , Width = 27.5" , Height = 39"
1080BE (1.110-567.0) SPECIFICATIONS
Pump Volume At Pump Head: 4.6 GPM
 Pump Pressure At Pump Head: 3500 PSI
 Burner Type: Fuel Oil Fired / 385,800 BTU/HR
 Burner Fuel Pressure: NOT TO EXCEED 200 PSI
 Burner Exhaust Stack: 8"
 Machine Power: Briggs Vanguard
 Machine Weight: 565 Lbs.
 Shipping Weight: 655 Lbs.
 Machine Dimensions:
Length = 42" , Width = 27.5" , Height = 39"

CONTENTS
4
Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
Model Number ______________________________
Serial Number ______________________________
Date of Purchase ____________________________
The model and serial numbers will be found on a decal attached
to the pressure washer. You should record both serial number and
date of purchase and keep in a safe place for future reference.
Introduction & Important Safety Information 5-7
Component Identification 8
Assembly Instructions 9
Installation 10-11
Operation Instructions 12
Detergents & General Washing Techniques 13
Shut Down Instructions & Storage 14
Maintenance 15
Troubleshooting Guide 16-17
Exploded View & Parts List 18-21
Control Box Exploded View & Parts List 22
Coil Outlet Exploded View & Parts List 23
Burner Exploded View & Parts List 24
Hose & Spray Gun/Downstream Injector Expl. Views & Parts Lists 25
Pump & Unloader Exploded View & Parts List 26-27
HD.1 Pumps Exploded Views & Parts Lists 28-29
HM.3 1 Pumps Exploded Views & Parts Lists 30-31
Crossfire Replacement & Parts Lists 32-33
VRT 3 Unloader Exploded View and Parts List 34
Wiring Diagrams 35-37
Warranty

Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
5
PRESSURE WASHER OPERATOR’S MANUAL
INTRODUCTION & IMPORTANT SAFETY INFORMATION
Thank you for purchasing this Pressure Washer.
We reserve the right to make changes at any time
without incurring any obligation.
Owner/User Responsibility:
The owner and/or user must have an understanding of
the manufacturer’s operating instructions and warnings
before using this pressure washer. Warning information
should be emphasized and understood. If the operator
is not fluent in English, the manufacturer’s instructions
and warnings shall be read to and discussed with
the operator in the operator’s native language by the
purchaser/owner, making sure that the operator com-
prehends its contents.
Owner and/or user must study and maintain for future
reference the manufacturers’ instructions.
The operator must know how to stop the machine
quickly and understand the operation of all controls.
Never permit anyone to operate the engine without
proper instructions.
SAVE THESE INSTRUCTIONS
This manual should be considered a permanent
part of the machine and should remain with it if
machine is resold.
When ordering parts, please specify model and
serial number. Use only identical replacement parts.
This machine is to be used only by trained operators.
IMPORTANT SAFETY
INFORMATION
READ OPERATOR’S
MANUAL THOROUGHLY
PRIOR TO USE.
WARNING: To reduce the risk of
injury, read operating instruc-
tions carefully before using.
1. Read the owner's manual
thoroughly. Failure to follow
instructions could cause mal-
function of the machine and
result in death, serious bodily
injury and/or property dam-
age.
2. Know how to stop the machine and bleed pressure
quickly. Be thoroughly familiar with the controls.
3. Stay alert — watch what you are doing.
WARNING
KEEP WATER
SPRAY AWAY FROM
ELECTRICAL WIRING.
WARNING: Keep wand, hose, and
water spray away from electric
wiring or fatal electric shock may
result.
4. All installations must comply
with local codes. Contact
your electrician, plumber,
utility company or the selling
distributor for specific details.
WARNING
EAR PROTECTION
MUST BE WORN
WARNING:This machine exceeds
85 db appropriate ear protection
must be worn.
WARNING
USE PROTECTIVE
EYE WEAR
AND CLOTHING
WHEN OPERATING
THIS EQUIPMENT.
WARNING: High pressure spray
can cause paint chips or other
particles to become airborne
and fly at high speeds. To avoid
personal injury, eye, hand and
foot safety devices must be
worn.
5. Eye, hand, and foot protection
must be worn when using this
equipment.
6. Keep operating area clear of all persons.
RISK OF EXPLOSION:
OPERATE ONLY WHERE
OPEN FLAME OR TORCH
IS PERMITTED
WARNING
WARNING: Flammable liquids
can create fumes which can ig-
nite, causing property damage
or severe injury.
WARNING: Risk of explosion —
Operate only where open flame
or torch is permitted.
RISK OF FIRE.
DO NOT ADD FUEL
WHEN OPERATING
MACHINE.
WARNING
WARNING: Risk of fire — Do not
add fuel when the product is
operating or still hot.
WARNING: Do not use gasoline
crankcase draining or oil con-
taining gasoline, solvents or
alcohol. Doing so will result in
fire and/or explosion.
WARNING: Risk of fire — Do not
Spray flammable liquids.
7. Allow engine to cool for 1-2 minutes before refuel-
ing. If any fuel is spilled, make sure the area is dry
before testing the spark plug or starting the engine.
(Fire and/or explosion may occur if this is not done.)
Gasoline engines on mobile or portable equipment
shall be refueled:
a. outdoors;
b. with the engine on the equipment stopped;
c. with no source of ignition within 10 feet of
the dispensing point; and
d. with an allowance made for expansion of the
fuel should the equipment be exposed to a
higher ambient temperature.

Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
OPERATOR’S MANUAL
PRESSURE WASHER
6
15. Be certain all quick coupler fittings are secured
before using pressure washer.
RISK OF INJECTION
OR SEVERE INJURY
TO PERSONS. KEEP
CLEAR OF NOZZLE.
WARNING
WARNING: High pressure devel-
oped by these machines will
cause personal injury or equip-
ment damage. Keep clear of
nozzle. Use caution when oper-
ating. Do not direct discharge
stream at people, or severe in-
jury or death will result.
WARNING
PROTECT FROM
FREEZING
WARNING: Protect machine from
freezing.
16. To keep machine in best
operating conditions, it is
important you protect machine
from freezing.Failure to protect
machine from freezing
could cause malfunction of the
machine and result in death,
serious bodily injury, and/or property damage. Fol-
low storage instructions specified in this manual.
17. Inlet water must be clean fresh water and no hotter
then 90°F.
WARNING
RISK OF
ASPHYXIATION.
USE THIS PRODUCT
ONLY IN A WELL
VENTILATED AREA.
WARNING: Risk of asphyxiation.
Use this product only in a well
ventilated area.
18. Avoid installing machines in
small areas or near exhaust
fans. Adequate oxygen is
needed for combustion or
dangerous carbon monoxide
will result.
19. Manufacturer will not be liable for any changes
made to our standard machines or any components
not purchased from us.
20. The best insurance against an accident is
precaution and knowledge of the machine.
WARNING
RISK OF INJURY
FROM FALLS WHEN
USING LADDER.
WARNING: Be extremely careful
when using a ladder, scaffolding
or any other relatively unstable
location. The cleaning area
should have adequate slopes
and drainage to reduce the pos-
sibility of a fall due to slippery
surfaces.
IMPORTANT SAFETY INFORMATION
In an overfilling situation, additional precautions are
necessary to ensure that the situation is handled
in a safe manner.
WARNING: Risk of injury. Disconnect battery
ground terminal before servicing.
8. When in use, do not place machine near flammable
objects as the engine is hot.
9. Oil burning appliances shall be installed only in
locations where combustible dusts and flammable
gases or vapors are not present. Do not store or
use gasoline near this machine.
10. Use No. 1 or No. 2 heating oil (ASTM D306) only.
NEVER use gasoline in your fuel oil tank. Gasoline
is more combustible than fuel oil and could result
in a serious explosion. NEVER use crankcase or
waste oil in your burner. Fuel unit malfunction could
result from contamination.
11. Do not confuse gasoline and fuel oil tanks. Keep
proper fuel in proper tank.
WARNING
RISK OF INJURY.
HOT SURFACES
CAN CAUSE BURNS
WARNING: Risk of injury. Hot
surfaces can cause burns. Use
only designated gripping areas
of spray gun and wand. Do not
place hands or feet on non-insu-
lated areas of the pressure
washer.
12. Transport/Repair with fuel tank EMPTY or with fuel
shut-off valve OFF.
HOT DISCHARGE FLUID:
DO NOT TOUCH OR
DIRECT DISCHARGE
STREAM AT PERSONS.
CAUTION: Hot discharge fluid.
Do not touch or direct discharge
stream at persons.
WARNING: This machine pro-
duces hot water and must have
insulated components attached
to protect the operator.
13. To reduce the risk of injury, close supervision is
necessary when a machine is used near children.
Do not allow children to operate the pressure
washer. This machine must be attended during
operation.
TRIGGER GUN KICKS
BACK - HOLD WITH
BOTH HANDS
WARNING
WARNING: Grip cleaning wand
securely with both hands before
starting. Failure to do this could
result in injury from a whipping
wand.
14. Never make adjustments on
machine while in operation.

Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
7
PRESSURE WASHER OPERATOR’S MANUAL
IMPORTANT SAFETY INFORMATION
21. Do not allow acids, caustic or abrasive fluids to pass
through the pump.
22. Never run pump dry or leave spray gun closed
longer than 1-2 minutes.
23. Machines with shut-off spray gun should not be
operated with the spray gun in the off position for
extensive periods of time as this may cause dam-
age to the pump.
24. Protect discharge hose from vehicle traffic and
sharp objects. Inspect condition of high pressure
hose before using or bodily injury may result.
25. Before disconnecting discharge hose from water
outlet, turn burner off and open spray gun to al-
low water to cool below 100° before stopping the
machine. Then open the spray gun to relieve pres-
sure. Failure to properly cool down or maintain the
heating coil may result in a steam explosion.
26. Do not overreach or stand on unstable support.
Keep good footing and balance at all times.
27. Do not operate this machine when fatigued or under
the influence of alcohol, prescription medications,
or drugs.
28. In oil burning models, use only kerosene, No. 1
home heating fuel, or diesel. If diesel is used, add
a soot remover to every tankful.
Follow the maintenance instructions
specified in the manual.

Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
OPERATOR’S MANUAL
PRESSURE WASHER
8
CHAUD!
8931230-2
COMPONENT IDENTIFICATION
Pump — Delivers a specific gpm to the high pressure
nozzle which develops pressure.
Spray Gun — Controls the application of water and
detergent onto cleaning surface with trigger device.
Includes safety latch.
Wand — Must be connected to the spray gun.
High Pressure Hose — Connect one end to water
pump high pressure discharge nipple and the other
end to spray gun.
Unloader Valve — Safety device which, when the
spray gun closes, prevents over pressurization.
Burner
Exhaust
Relief
Valve
Engine
Pump
Unloader
Valve
Control Box
Fuel Oil
Tank
Gasoline
Tank
High
Pressure
Hose
Spray
Gun
Spray Wand

Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
9
PRESSURE WASHER OPERATOR’S MANUAL
ASSEMBLY INSTRUCTIONS
Unpacking
Unpack carefully. Wear safety glasses or goggles while
unpacking, assembling, or operating pressure washer.
If there are missing components or hidden damage,
immediately contact carrier concerning discrepancies.
Parts Included
• Pressure Washer
• Pressure Hose
• Pressure Nozzles (3 Ea.)
• Wand
• Trigger Gun
• Operations Manual
• Gasoline Engine Manual
Pressure Hose, Trigger Gun and Wand
1. Install the pressure hose on the pressure washer as
shown in Figure 3.
NOTE: The pressure nozzle is not to be installed at
this time.
2. Assemble wand components as shown in Figure 4.
3. Make sure all connections are secure.
Figure 4 - Trigger Gun/Wand Assembly
89312360-7
High
Pressure
Nozzle
Wand
Spray Gun
High Pressure Hose
Figure 3 - Pressure Hose Installation
89312360-4
Hose Quick
Disconnect
Outlet
Nipple
Relief
Valve
Manifold
Coil Outlet
Discharge

Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
OPERATOR’S MANUAL
PRESSURE WASHER
10
INSTALLATION
Getting Started
IMPORTANT: Proper initial installation of equipment
will assure more satisfactory performance, longer
service life, and lower maintenance cost.
IMPORTANT: The use of backflow preventer on the
water supply hose is recommended and may be
required by local code.
The pressure washer should be run on a level surface
and in a protected area where it is not readily influenced
by outside forces such as strong winds, freezing
temperatures, rain, etc. The pressure washer should be
located to assure easy access for filling fluids, adjustment
and maintenance. Normal precautions should be taken
by the operator to prevent moisture from reaching the
pressure washer. It is recommended that a partition be
made between the wash area and the pressure washer
to prevent direct spray from the high-pressure wand from
coming in contact with the pressure washer. Moisture
reaching the pressure washer will reduce its service
life. All installations should comply with the local codes
covering such installations.
IMPORTANT: DO NOT run machine indoors or in an
enclosed area where high ambient temperatures
exist. High ambient temperatures (above 100° F) can
cause engine oil failure and will greatly reduce the
engine’s performance.
Venting
CAUTION: All venting must be in accordance with ap-
plicable federal and state laws, and local ordinances.
Consult local heating contractors.
If the pressure washer is to be used in an enclosed area,
a flue must be installed to vent burner and engine exhaust
to the outside atmosphere. Be sure the flue is the same
size as the burner exhaust vent on the pressure washer
lid. Poor draft will cause the pressure washer to soot
and not operate properly.When selecting the location for
installation, beware of poorly ventilated locations or areas
where exhaust fans may cause an insufficient supply of
oxygen. Proper combustion can only be obtained when
there is a sufficient supply of oxygen available for the
amount of fuel being burned. If it is necessary to install the
machine in a poorly ventilated area, outside fresh air will
have to be supplied to the machine. Locate the pressure
washer so that the flue will be as straight as possible and
protrude through the roof at a proper height and location
to provide adequate draft. This oil fired pressure washer
must have a draft regulator installed in the flue (available
from most heating contractors). A draft regulator will
permit proper upward flow of exhaust flue gases.
Battery
WARNING: Batteries generate explosive gases during
normal battery operation. DO NOT expose the battery
to flame or sparks as these gases may ignite.
WARNING: Battery fluid is highly acidic. If battery fluid
contacts skin or clothing, wash immediately with soap
and water. If battery fluid enters eye, immediately flood
eye with running cold water for at least 15 minutes and
get immediate medical attention.
1. Refer to Figure 5.
2. Install battery (battery not included) in battery box as
shown. Use a standard automotive battery minimum
500 CCA (Cold Cranking Amps). It is recommended
that a dual cell battery (a battery with a separate cell
for emergency starting) be used.
3. To reduce the possibility of sparking attach the battery
cables in the following order. First attach the positive
battery cable (red) to the positive “+” terminal of the
battery. Next, attach the negative battery cable (black)
to the negative “-” terminal of the battery.To disconnect
the battery, remove the cables in the opposite order
as installed.
4. Install battery box lid and secure with strap provided.
Oil Burner
Burner Air Adjustment: The oil burner is preset for
operation at altitudes below 3000 feet. If operated at
higher altitudes, it may be necessary to adjust the air band
setting. Adjust the air band for a #1 or #2 smoke spot on
the Baccarat scale.
Figure 5 - Battery Installation
89312360-3
Black
Cable
Red
Cable

Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
11
PRESSURE WASHER OPERATOR’S MANUAL
INSTALLATION
Hotsy Crossfire Oil Burner
Burner Air Adjustment:The oil burner on this machine
is preset for operation at altitudes below 1000 feet. If
operated at higher altitudes, it may be necessary to
adjust the air band for a #1 or #2 smoke spot on the
Bacharach scale.
To adjust, start machine and turn burner ON. Loosen
two locking screws found on the air band and close air
band until black smoke appears from burner exhaust
vent. Note air band position. Next, slowly open the air
band until white smoke just starts to appear. Turn air
band halfway back to the previously noted position.
Tighten locking screws.
Hotsy Crossfire Oil Burner
Reference Numbers
Air Band Locking Screws
Air Band
CAUTION: If white smoke appears from burner ex-
haust vent during start-up or operation, discontinue
use and readjust air bands.
NOTE: If a flue is installed, have a professional service-
man adjust your burner for a #1 or #2 smoke spot on
the Bacharach scale.
Gasoline Engine
This gasoline engine is preset for operation at altitudes
below 3000 feet above sea level. If operated at higher
altitudes, it may be necessary to install a high altitude main
jet in the carburetor. Contact an authorized engine sales
and service center for details.
Water Supply
This machine is designed to be connected to a pressurized
(20 to 100 PSI) water supply, capable of maintaining a
minimum of 6.0 GPM. If it is necessary to use a gravity
feed water tank, the following plumbing modifications will
be required.
A 1/2" NPT 3-way ball valve will need to be installed in the
water inlet line. Refer to Figure 7. Hotsy recommends the
use of Watts Regulator Valve #1/2 B6780 M1 (Hotsy P/N
921363) for this application.With this valve in place this
machine will be capable of using both a pressurized
or gravity feed water supply without additional
modifications. For proper operation it is important that
the valve be fully open for its intended supply. This
will prevent air from being drawn into the system from
the non active source. Also the pressure supply must
still be connected to the float tank. The connection of
a pressurized supply directly to the 3-way valve will
prevent detergent from being drawn into the system.

Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
OPERATOR’S MANUAL
PRESSURE WASHER
12
Before Starting
WARNING: Check hoses, fittings, wand, trigger gun
and fuel connections daily for signs of wear, cracks
and looseness, replace as required.
1. Read all manuals provided with this pressure washer.
Become familiar with location and function of all oper-
ating and safety controls.
2. Connect the water supply hose to the float tank water
inlet (standard garden hose connector). The water
faucet and supply hose must be capable of providing
6.0 GPM.
3. Fill the burner fuel tank. Use kerosene, #1 grade
home heating oil, #1 or #2 diesel fuel. DO NOT USE
GASOLINE.
4. Fill the gasoline tank. Use lead free gasoline minimum
86 octane. DO NOT use gasoline containing more
than 10% ethanol, 15% MTBE, or 5% methanol.
5. Check pump and engine oil levels.
6. If detergents are to be used, only use detergent for
pressure washers. Follow instructions on detergent
container.
IMPORTANT: Before installing the pressure nozzle
on initial start-up, turn on the water supply and allow
water to run from the end of the wand until clear to
prevent the pressure nozzle from clogging.
IMPORTANT: If the pressure washer has not been
used for an extended period of time, remove the pres-
sure nozzle from the end of the wand and turn on the
water supply. Allow water to run from the end of the
wand until clear.
7. Install the proper pressure nozzle for your cleaning
needs on end of wand, refer to Figure 8.
IMPORTANT:The trigger gun provided with this pres-
sure washer is equipped with a manual trigger lock to
prevent accidental operation of the trigger gun, refer
to Figure 8. The manual trigger lock should be used
whenever the trigger gun is not in use.
OPERATION INSTRUCTIONS
To Start
DANGER: DO NOT point wand or spray gun at your-
self or at any person. Bodily injury may result from
water under high pressure.
IMPORTANT: The water must be turned on before
starting. Running the pump dry will cause damage
and void warranty.
IMPORTANT: DO NOT allow the machine to run with
trigger gun closed for more than 3 minutes at any
time or damage to pump may occur.
1. Turn water ON.
2. Hold wand firmly with trigger gun in the closed po-
sition.
3. Turn fuel shut-off valve counterclockwise (CCW) to
open. Move choke lever to full choke position. Choke
may not be needed on warm engine.
4. Move throttle control to half throttle.
5. Turn key on engine clockwise (CW) hold until engine
starts. DO NOT crank engine for longer than 15 sec-
onds at any one time or starter damage may occur. If
the engine does not start, it may have air in the gas
lines and be unable to pull gasoline from the fuel tank.
This symptom may appear if the engine has not been
run recently or had been run until all gasoline was
depleted from gas lines.
6. When the engine starts, move choke lever until
engine runs smoothly. Then move throttle control to
full throttle. When engine warms, move choke to no
choke position.
IMPORTANT:To allow for proper battery charging and
AC generator operation the throttle control MUST be
kept in full throttle position as soon as choke lever
is placed in no choke position.
7. Holding wand firmly, squeeze the trigger gun open.
Allow air to purge from system.
8. If hot water is desired, adjust the thermostat to proper
temperature. Close the trigger gun and turn burner
switch ON.
IMPORTANT: The throttle control must be in the full
throttle position or damage to the AC generator or
burner may result.
9. Open the trigger gun.The burner will fire immediately
with a puff of smoke. If smoke continues, refer to
the Troubleshooting Guide in this manual. When the
trigger gun is closed or the temperature setting is
reached, the burner will automatically turn off.
89312360-5
Figure 8 - Nozzle Installation/Manual Trigger Lock
Manual Trigger Lock
Pressure
Nozzle

Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
13
PRESSURE WASHER OPERATOR’S MANUAL
WARNING: Some detergents
may be harmful if inhaled or
ingested, causing severe nau-
sea, fainting or poisoning. The
harmful elements may cause
property damage or severe
injury.
STEP 1: Use detergent designed
specifically for pressure washers.
Household detergents could dam-
age the pump. Prepare detergent
solution as required by the manu-
facturer. Fill a container with pres-
sure washer detergent. Place the
filter end of detergent suction tube
into the detergent container.
STEP 2: With the engine running, pull trigger to operate
machine. Liquid detergent is drawn into the machine
and mixed with water. Apply detergent to work area.
Do not allow detergent to dry on surface.
IMPORTANT: You must flush the detergent after
each use by placing the suction tube into a bucket
of clean water, open detergent valves then run the
pressure washer for 1-2 minutes.
THERMAL PUMP
PROTECTION
If you run your pressure washer for 3-5 minutes without
pressing the trigger on the spray gun, circulating water
in the pump can reach high temperatures. When the
water reaches this temperature, the pump protector
engages and cools the pump by discharging the warm
water onto the ground. This thermal device prevents
internal damage to the pump.
CLEANING TIPS
Pre-rinse cleaning surface with fresh water. Place de-
tergent suction tube directly into cleaning solution and
apply to surface at low pressure (for best results, limit
your work area to sections approximately 6 feet square
and always apply detergent from bottom to top). Allow
detergent to remain on surface 1-3 minutes. Do not
allow detergent to dry on surface. If surface appears
to be drying, simply wet down surface with fresh water.
If needed, use brush to remove stubborn dirt. Rinse at
high pressure from top to bottom in an even sweeping
motion keeping the spray nozzle approximately 1 foot
from cleaning surface. Use overlapping strokes as you
clean and rinse any surface. For best surface cleaning
action spray at a slight angle.
89312360-6
Recommendations:
 • Before cleaning any surface, an inconspicuous
area should be cleaned to test spray pattern and
distance for maximum cleaning results.
 • If painted surfaces are peeling or chipping,
use extreme caution as pressure washer may
remove the loose paint from the surface.
 • Keepthespraynozzleasafedistancefromthe
surface you plan to clean. High pressure wash
a small area, then check the surface for dam-
age. If no damage is found, continue to pressure
washing.
CAUTION - Never use:
 • Bleach, chlorine products and other corrosive
chemicals
 • Liquidscontainingsolvents(i.e., paintthinner,
gasoline, oils)
 • Tri-sodiumphosphateproducts
 • Ammoniaproducts
 • Acid-basedproducts
These chemicals will harm the machine and will dam-
age the surface being cleaned.
RINSING
It will take a few seconds for the detergent to clear.
Apply safety latch to spray gun and close detergent
valve. Select and install the desired high pressure
nozzle.
WARNING
DETERGENTS & GENERAL WASHING TECHNIQUES

Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
OPERATOR’S MANUAL
PRESSURE WASHER
14
SHUTDOWN INSTRUCTIONS & STORAGE
1. If detergents were used, draw clear water through the
system to purge detergent.
2. If burner was used, turn OFF burner switch, and
allow pump to run cold water through coil.
3. Move throttle control to idle position.
4. Turn key on engine counterclockwise (CCW) to OFF
position.
5. Turn OFF fuel shut-off valve.
6. Turn OFF water supply.
7. Squeeze trigger gun open to relieve system pres-
sure.
STORAGE
DANGER: Do not store flammable liquids (gasoline,
solvents, etc.) near pressure washer, or in non-ven-
tilated areas.
Protect from freezing by storing in a heated area, or by
flushing the system with antifreeze. To flush the system,
fill the float tank with antifreeze and remove spray nozzle
from wand. Start the machine and allow it to run until
antifreeze flows from the end of the wand. Place end of
wand into float tank and circulate the antifreeze through
system for several minutes. Open and close the trigger
gun several times to circulate antifreeze through the
unloader valve. Place detergent line into the float tank.
Open the detergent metering valve to draw antifreeze into
the detergent system.
If the pressure washer is not to be used for a considerable
length of time, it is recommended to flush the system with
antifreeze for rust protection.

Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
15
PRESSURE WASHER OPERATOR’S MANUAL
MAINTENANCE
WARNING: Unauthorized machine modification or
use of non-approved replacement parts may cause
personal injury and/or property damage and will void
the manufacturer warranty.
Pump
Use HOTSY Pump Oil (P/N 315068) or equivalent 30W
non-detergent oil for pump crankcase. Crankcase must be
filled to the full mark on the dipstick or to center of sight
glass window found on the rear of the pump. During the
break-in period, make sure the oil is changed after the
first 25 hours of operation. After that, replace oil every 3
months or 300 hours, whichever comes first.
DO NOT:
1. Pump acids.
2. Fail to winterize in freezing temperatures.
3. Allow pump to run dry.
4. Allow machine to run with trigger gun closed for more
than 3 minutes at any one time or damage to pump
may occur.
DO:
1. Use a water softener on the water system if known to
be high in mineral content.
2. Use only high quality detergents and follow manufac-
turer's mix recommendations.
3. Immediately after using detergent solutions the sys-
tem should be flushed thoroughly with clear water.
4. Clean strainer screen on detergent line periodically.
Unloader Valve
WARNING: The unloader valve on this pressure
washer has been factory set and sealed and is a field
nonadjustable part.Tampering with the factory setting
may cause personal injury and/or property damage,
and will void the manufacturer warranty.
Burner Fuel Filter
Drain water that has accumulated in fuel filter and clean
filter element as needed.
Heating Coil
Coil De scaling: In hard water areas, scale buildup within
the heating coil will occur. Scale deposits will decrease
the water temperature rise and may eventually clog the
heating coil. Contact your local service center when de
scaling is needed.
Coil De sooting: Poor grades of fuel oil or inadequate
combustion air will cause heavy soot buildup on the
outside surface of the heating coil. This will restrict the
airflow through the coil, further aggravating the soot
buildup. Contact your local service center when de sooting
is needed.
Engine
Refer to engine manual provided with this pressure
washer for recommended maintenance.
Oil Burner Blower Motor
The motor bearings are permanently lubricated and will
not require any additional lubrication.
Battery
Refer to battery manufacturer’s literature for
recommended maintenance

Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
PRESSURE WASHER Troubleshooting Guide
16
TROUBLESHOOTING
SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION
ENGINE WILL
NOT RUN
No fuel Replenish supply.
Low battery Charge battery.
Poor battery cable connection Clean battery terminals and check cables.
Refer to provided engine manual for additional troubleshooting
NO WATER
FROM PRESSURE
NOZZLE
Pressure nozzle clogged Clean pressure nozzle.
Inlet water screen clogged Clean.
Pump sucking air Fill the detergent container. Check for
loose hose clamps or fittings.
POOR
OR NO
DETERGENT
FLOW
Low detergent level Replenish supply.
Detergent screen clogged Clean.
Detergent metering valve not
opening
Check that handle or knob is not slipping
on shaft.
Pressure nozzle clogged Clean.
LOW PRESSURE
FROM SPRAY
NOZZLE
Inlet clogged Clean.
Spray nozzle worn or
incorrect size
Replace.
Inadequate water supply Increase water supply.
Pump sucking air Fill the detergent container. Check for
loose hose clamps or fittings.
UNLOADER VALVE
CYCLES WHEN
TRIGGER GUN IS
OPEN OR CLOSED
Air in system Open and close trigger gun several times.
Defective unloader valve Repair or replace.
Water leak between unloader
valve and trigger gun
Check fittings, hose and trigger gun for
leaks. Repair or replace.
BURNER WILL
NOT IGNITE
WHEN TRIGGER
GUN IS OPEN
No fuel Replenish supply.
Adjustable thermostat set too
low
Raise temperature setting.
Defective pressure switch Repair or replace.
Electrodes are dirty or out of
adjustment
Refer to Oil Burner Manual provided with
machine.
No AC generator output Check AC generator.
BURNER
SMOKES OR HAS
OBNOXIOUS ODOR
Air bands need to be adjusted Readjust. Refer to Oil Burner Section
under Installation.
Improper fuel Use kerosene, #1 Grade Home Heating
Oil, #1 or #2 Diesel Fuel.
DO NOT USE GASOLINE.

Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
17
PRESSURE WASHER Troubleshooting Guide
When ordering from your dealer, please provide the following:
Model Number: _______________________________________
Machine Serial Number: ________________________________
Component Part Number: _______________________________
Description: __________________________________________
IMPORTANT
If the pressure washer demonstrates other symptoms or the corrective actions
listed do not correct the problem, contact the local authorized Hotsy Service
Center. The Hotsy Service Center can be identified by visiting www.hotsy.com .
TROUBLESHOOTING

Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
OPERATOR’S MANUAL
PRESSURE WASHER
18
89312360-8
EXPLODED VIEW - LEFT SIDE
73
34
111
16
18
33
34
7
9
10
5
2
4
92
8
44
43
96
74
91
26
29
49, 50
40
41
51
33
28
42
45
46
42
39
90
3
6
95
94
97
48
98
25
11 47
12
13 21
1
27
43
32
34
21
21
38
39
38
32
93
Vanguard Only
For
Detail See
Burner
Page
100
14
104
33
101
101
37
19
15
34
99
31
20
108
42
72
105
109
122
121
129
120
41, 42
107
108
106
130
125
122
123
128
129
123
124
126
118
30
108
110
112
113
115

Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
19
PRESSURE WASHER OPERATOR’S MANUAL
CHAUD!
89312360-9
39
17
36
84
87 62
75
83
88
86
85
89
57
23
35
39
69
67
58
53
52
57
55
66
56
60
68
63
61
38
70
71
76
78
79
59
39
54
81
80
76
65
82
66
77
48
EXPLODED VIEW - RIGHT SIDE
71
22
35
38
48
71
35
70
114
64
71
For Detail See
Pump Illus.
Purge Port
Connection
965B,1075BE
Models
102
103
48
24
117
116
21
21
1080BE
Only
1080BE
Only
119
128
122
127
122

Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
OPERATOR’S MANUAL
PRESSURE WASHER
20
EXPLODED VIEWS PARTS LIST
ITEM PART NO. DESCRIPTION QTY
1 8.931-194.0 Assy, Hotsy 1100 Cage 1
2 8.931-270.0 Coil, Blt Drv Roll Cage 1
3 8.916-076.0 Outer Wrap, Red 1
4 8.911-954.0 Plate Insulation Retainer 1
5 8.719-946.0 Hanger, Hose 1
6 8.719-935.0 Ring, Insul Retain 1
7 8.911-327.0 Top Hat, Weld Assy, 18"
Hotsy Coils 1
8 9.802-825.0 Clip, Retaining U-Type 4
9 8.912-129.0 Strap, Coil 1
10 8.717-442.0 Insulation, Top Head
18 OD x 8.0 ID, Fiberglass 1
11 8.751-741.0 Insulation, Pancake 14" 1
12 8.709.153.0 Filter, Fuel, Hotsy 3/8" 1
13 8.706-958.0 Hose Barb,
1/4" Barb x 1/4" ML Pipe 1
14 9.802-254.0 Hose, 1/4 Push-on 48"
15 8.706-546.0 Grommet, 1-3/4" x 2-1/8" x 3/8" 3
16 8.706-547.0 Grommet, 1/2" x 1" x 1/2" 3
17 8.706-553.0 Mount, Rubber 60 Duro 8
18 8.717-451.0 Insl, 1/2" Cerflt SB Lin Ft 59 in
19 8.931-243.0 Hose Reel Bracket 1
20 8.915-292.0 Hose Reel Retainer 2
21 6.390-126.0 Clamp, Hose, .46-,54 ST 6
22 8.900-282.0 Label, RPM 1
23 9.800-008.0 Label, Danger Cool Engine 1
24 9.802-794.0 Cage Nut, 1/4 x 12 Ga. 2
25 8.706-600.0 Battery, Box, Large (1075BE,
1080BE) 1
26 8.705-975.0 Nipple, 1/2" Hex Steel 1
27 8.706-216.0 Tee, 1/2" Female, Steel Pipe 1
28 9.802-038.0 Nipple, 1/2 JIC, 1/2 Pipe (Steel) 1
29 8.706-243.0 Plug, 1/2" Square, Head, Galv 1
30 9.802-776.0 Nut, 5/16" ESNA 4
31 9.800-001.0 Label, Gas Only (1080BE) 1
32 9.802-756.0 Screw, 5/16" x 1" Whiz 3
(1080BE) 2
33 8.719-000.0 Washer, 5/16" x 1-1/4"
Fender, SAE 7
34 9.802-778.0 Nut, Whiz Loc 5/16 Flange 9
35 9.803-277.0 Screw, 5/16" x 1/2" Whiz Loc 6
36 9.802-733.0 Bolt, 3/8 x 3-1/2" 1
37 9.802-254.0 Hose, 1/4 Push-on 30"
38 9.802-779.0 Nut, 3/8 ESNA 15
39 9.802-807.0 Washer, 3/8", SAE, Flat 17
40 9.802-531.0 Regulator, Voltage 15 Volt,
9 HP Only 1
ITEM PART NO. DESCRIPTION QTY
41 9.802-203.0 Clamp, 1/2" RO-Clip,
Kleinhuis 1
(1080BE) 2
42 9.802-771.0 Screw, 10/32 x 3/4" BH SOC CS
(1080BE, 1075BE) 4
(965B) 5
43 9.802-695.0 Nut, 10/32" Keps 4
(965B) 5
44 9.802-754.0 Screw, 1/4" x 1/2" HH NC,
Whiz Loc 4
45 9.802-207.0 Clamp, Round 0.56 ID (Honda) 1
46 9.802-767.0 Screw, 3/8" x 3/4" HH NC, Whiz 2
47 8.718-636.0 Bolt, 5/16" x 3", NC HH Zinc 1
48 9.800-006.0 Label, "Hot/Caliente" with
Arrows Warning 4
49 8.932-968.0 Label, For Outdoor Use-USA 1
50 9.800-034.0 Label, Clear Lexan, 4.5" x 4.90" 1
51 8.931-277.0 Label, Hotsy Roll Cage
Deck Plate 1
52 8.918-211.0 Hose, 3/8" x 40", 2 Wire
1/2" FJIC x 1/2"FJIC 1
53 9.802-151.0 Swivel, 1/2" JIC Fem Push-on 2
54 9.802-259.0 Hose, 1/2" Push-on per/ft 10 in
55 8.918-425.0 Hose, 3/8" x 29" 2 Wire
Pressure Loop 1
56 8.931-214.0 Platform, Power Assy 1
57 8.715-070.0 Engine, Gas Elec/Mnl
Briggs (1080BE) 1
8.750-579.0 Engine, Honda GX390UT2QNR2
E/S 18 Amp (1075BE) 1
8.750-576.0 Engine, Honda, GX270UT2QAR2
18 Amp (965B) 1
58 9.802-384.0 Pulley, 2 BK 40H (1080BE) 1
8.715-576.0 Pulley, 2BK 32H (1075BE,
965B) 1
59 8.715-593.0 Pulley, 2BK 90H (1080BE,
1075BE) 1
8.715-591.0 Pulley, 2 BK 70H
(965B) 1
60 9.802-399.0 Bushing H x 1 1
61 9.802-402.0 Bushing, H x 24mm 1
62 9.802-673.0 Key, Shaft, 16 HP Vanguard 1
63 8.715-695.0 Belt, Bx34 (1080BE, 1075BE) 2
9.804-525.0 Belt, BX33 (965B) 2
64 9.802-716.0 Bolt, 5/16" x 2" NC HH
(1080BE) 4
9.802-727.0 Bolt, 3/8" x 1-3/4" Tap (1075BE,
965B) 4
65 9.802-776.0 Nut, 5/16" ESNA NC
(1080BE) 4
9.802-779.0 Nut, 3/8" ESNA NC (1075BE,
965B) 4