Hotsy 965SS-1075SSE 97-6554 0605 - ETS Company Pressure ...

listed 

® 

serial number: 

date purchased: 

for sales and service, please contact: 

models 965ss, 1065ss, 

1065sse, 1075sse 

OPERATING INSTRUCTIONS AND PARTS MANUAL 

Thank you for purchasing a Hotsy Pressure Washer. This manual covers the operation and maintenance 

of your pressure washer. All information in this manual is based on the latest product information 

available at the time of printing. Hotsy, Inc. reserves the right to make changes at any time 

without incurring any obligation. 

Read instructions carefully before attempting to assemble, install, operate or service this pressure 

washer. Failure to comply with instructions could result in personal injury and/or property damage! 

c 

97-6554 

®

965ss specifications 

1065sse specifications 

Pump Volume At Pump Head: 3.0 GPM/180 GPH Pump Volume At Pump Head: 3.5 GPM/210 GPH 

Pump Pressure At Pump Head: 3000 PSI 


Burner Type: Fuel Oil Fired, 248,000 BTU/Hr. 


Burner Fuel Pressure: 140 PSI 


Machine Power Rating: 9 HP Honda 

Machine Power Rating: 11 HP Honda Electric Start 

Machine Weight: 385 Lbs. 


Shipping Weight: 415 Lbs. 


Exhaust Stack Size: 8" 


Machine Dimensions: Length=47", Width=31", Height=49" Machine Dimensions: Length=47", Width=31", Height=49" 

1065ss specifications 1075sse specifications 

Pump Volume At Pump Head: 3.5 GPM/210 GPH Pump Volume At Pump Head: 3.8 GPM/228 GPH 







Machine Power Rating: 11 HP Honda 

Machine Power Rating: 13 HP Honda Electric Start 







Machine Dimensions: Length=47", Width=31", Height=49" Machine Dimensions: Length=47", Width=31", Height=49"

Important Safety Information 4-5 

Component Identification 6 

Assembly Instructions 7-8 

Installation Instructions 8-9 

Operation Instructions 10-11 

General Cleaning Techniques & Storage 12 

Maintenance 13 

Troubleshooting 14-15 

Exploded Views & Parts List 16-19 

Control Panel Assembly & Parts List 20 

Burner Assembly & Parts List 21 

Fuel Tank Assembly & Parts List 22 

Pump Assembly & Parts List - 965SS 23 

Pump Assembly & Parts List, 1065SS, 1065SSE, 1075SSE 24-25 

Coil Outlet Assembly & Parts List, 965SS 26 

Coil Inlet Assembly & Parts List, 1065SS, 1065SSE 27 

Coil Inlet Assembly & Parts List, 1075SSE 28 

Coil Inlet Parts Exploded View and Parts List 29 

Hose, Spray Gun & Wand Assembly & Parts List 30 

Unloader Exploded View and Parts List 31 

HS Pump Exploded View and Parts List 32-33 

HG-1 Pump Exploded View and Parts List 34-35 

Wiring Diagrams 36-37 

Warranty 

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. 

97-6554 • HOTSY 965SS-1075SS • REV. 5/06 

contents 

3

OPERATOR’S MANUAL PRESSURE WASHER 

4 

Warning 

read operator’s 

manual 

thoroughly 

prior to use. 

CAUTION: To reduce the risk of 

injury, read operating instructions 

carefully before using. 

1. Read owner's manual thoroughly. 

Failure to follow instructions 

could cause malfunction of 

the machine and result in death, 

serious bodily injury and/or property 

damage. 

2. Know how to stop machine and bleed pressures 

quickly. Be thoroughly familiar with the controls. 

3. Stay alert — watch what you are doing. 

important safety information 

4. All installations must comply with local codes. 

Contact your electrician, plumber, utility company 

or the selling distributor for specific details. 

WARNING: Risk of asphyxiation. 

Warning 

Use this product only in a well 

ventilated area. 

risk of 

asphyxiation. 

use only in a Well 

ventilated area. 

Warning 

risk of fire. 

do not add fuel 

When operating 

machine. 

Warning 

keep Water spray 

aWay from 

electrical Wiring. 

5. When the machine is working, 

do not cover or place in 

a closed space where ventilation 

is not sufficient. 

WARNING: Risk of fire. Do not 

add fuel when the machine in 

operating. 

6. Risk of explosion — do not 

spray flammable liquids or 

operate in an explosive location. 

Operate only where 

open flame or torch is permitted. 

WARNING: Keep water spray 

away from electrical wiring 

or fatal electrical shock may 

result. 

7. To protect the operator from 

electrical shock, the machine 

must be electrically grounded. It 

is the responsibility of the owner 

to connect this machine to a UL 

grounded receptacle of proper 

voltage and amperage ratings. Do not spray water 

on or near electrical components. Do not touch 

machine with wet hands or while standing in water. 

Always disconnect power before servicing. 

8. Grip cleaning wand securely with both hands before 

starting the cleaner. Failure to do this could 

result in injury from a whipping wand. 

Warning 

high pressure 

spray can pierce 

skin and tissues. 

WARNING: High pressure 

stream of fluid that this equipment 

can produce can pierce 

skin and its underlying tissues, 

leading to serious injury and 

possible amputation. 

9. High pressure developed by 

these machines can cause 

personal injury or equipment 

damage. Use caution when 

operating. Do not direct discharge stream at 

people, or severe injury and/or death may result. 

10. Never make adjustments on machine while 

in operation; disconnect from electrical source or 

shut off gas valve. 

WARNING: High pressure spray 

Warning 

can cause paint chips or other 

particles to become airborne 

and fly at high speeds. 

protective eyeWear 

and clothing must 

be Worn. 

Warning 

risk of injury. 

hot surfaces 

can cause burns 

11. Eye safety devices and foot 

protection must be worn 

when using this equipment. 

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-insulated 

areas of the pressure 

washer when starting gasoline 

engine. 

12. Machines with shut-off trigger gun should not be 

operated with the trigger in the off position for extensive 

periods of time as this may cause damage 

to the pump. 

13. Protect from freezing. 

14. Be certain all quick coupler fittings are secured 

before using pressure washer. 

15. Do not allow acids, caustic, or abrasive fluids to 

pass through the pump. 

16. Inlet water must be from a cold, fresh city water 

supply. 

17. 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. 

1 8. The best insurance against an accident is precaution 

and knowledge of the machine. 

19. Do not operate this product when fatigued or under 

the influence of alcohol or drugs. Keep operating 

area clear of all persons. 

97-6554 • HOTSY 965SS-1075SS • REV. 5/06

important safety information 

20. Hotsy will not be liable for any changes made to 

our standard machines, or any components not 

purchased from Hotsy. 

21. Do not overreach or stand on unstable support. 

Keep good footing and balance at all times. 

22. Follow maintenance instructions specified in manual. 

23. Cleaning area should be provided with adequate 

slopes and drainage to reduce possibility of falls 

because of slippery surfaces. 

24. Turn burner off and cool to 100°F before turning 

machine off. 

2 5. Use extreme caution when moving pressure 

washer over rough or uneven surfaces. 

2 6. When applying detergents follow the safety rules 

on the detergent label. Use detergent from a covered 

D.O.T. approved container. 

2 7. This machine has been provided with Warning and 

Instruction decals for the safety of the operator. If 

these decals are removed or become damaged 

they should be replaced. Contact your dealer for 

replacement decals. 


PRESSURE WASHER OPERATOR’S MANUAL 

5


6 

unloader 

valve 

pump 

detergent 

injector 

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. 

detergent injector — Allows you to siphon and mix 

detergents. 

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. 

component identification 

coil outlet 

burner 

fuel oil 

tank 

spray 

gun 

burner 

exhaust 


hose 

hanger 

Wand 

engine 

high 

pressure 

nozzle 

high 

pressure hose 

unloadervalve — Safety device which, when the spray 

gun closes, redirects flow of water. (Not Shown.) 

note: if trigger on spray gun is released for more 

than 2 minutes, water may leak from the pump 

protector. Warm water will discharge from pump 

protector onto floor.this system prevents internal 

pump damage.

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. 

1. Cut strapping band from pressure washer and pallet. 

2. Remove pressure washer from pallet. 

parts included 

• Pressure Washer 

• Pressure Hose 

• Wand 

• Operating Instructions and Parts Manual 

• Gasoline Engine Manual 

• Parts Bag Containing: 

Pressure Nozzles (3 Ea.) 

Trigger Gun 

Battery Terminals (2 Ea.) 

tools required 

• 8" Adjustable Wrench 

• Teflon Tape 

• Flat Blade Screwdriver 

pressure hose, trigger gun and Wand 

1. When assembling, use teflon tape on all threaded 

plumbing connections to prevent leakage. 

2. Install the pressure hose on the pressure washer as 

shown in figure 1. 

relief valve 

pressure hose 

Figure 1 - Pressure Hose Installation 

assembly instructions 

coil outlet 


3. Assemble wand components as shown in figure 2. 

Quick disconnect 

Figure 2 - Wand Assembly 

NOTE: The pressure nozzle is not to be installed at 

this time. 

4. Make sure all plumbing connections are tight. 

battery 

Wand 

Quick 

disconnect plug 

pressure 

hose 

Quick 

disconnect 

trigger gun 

WARNING: Wear eye, hand and skin protection when 

handling or connecting battery. 

WARNING: Batteries generate explosive gases during 

normal battery operation. 

WARNING: 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. electric start machines only: Place battery in battery 

box (battery not included). Use a standard 12 volt 

automotive battery. Select a battery similar to the one 

in figure 3 for proper fit and installation. 

8-3/4" 

max 

Figure 3 - Battery Dimensions 

10-1/2" 

max 

6-3/4" 

max 


7


8 

battery 

terminal 

12 volt 

battery 

battery box 

assembly & installation instructions 

2. Install the provided battery terminals as shown in 

figure 4. 

box strap 

battery 

box lid 

Figure 4 - Battery Installations/Connections 

responsibility 

installation 

black Wire from 

control box 

black Wire 

from voltage 

regulator 

red Wire from 

control box 

red Wire from 

voltage regulator 

3. To reduce the possibility of sparking attach the wires 

to the battery in the following order. Refer to figure 

4. First attach the red wire from the voltage regulator 

and the red wire from the control box to the positive 

“+” terminal of battery. Next, attach the black wire 

from the voltage regulator and the black wire from the 

control box to the negative “-” terminal of the battery. 

To disconnect the battery remove the wires in the 

opposite order as installed. Install battery box cover 

and fasten in place. 

The owner and/or user must have an understanding of 

the manufacturer’s operating instructions and warnings 

before using this Hotsy 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 

comprehends its contents. 

Owner and/or user must study and maintain for future 

reference the manufacturers’ 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. 

getting started 


IMPORTANT: Proper initial installation of equipment 

will assure more satisfactory performance, longer 

service life, and lower maintenance cost. 

IMPORTANT: The use of a 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 of fluids, 

adjustments 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 wand 

from coming in contact with the pressure washer. Moisture 

reaching the equipment will reduce the pressure washer’s 

service life. All installations must comply with the local 

codes covering such installations. 

venting 

CAUTION: All venting must be in accordance with applicable 

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. 

See component identification for location. 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 may have to be 

piped to the burner and a fan installed to bring sufficient 

air into 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. 

In addition, the pressure washer should never be operated 

in an enclosed area where high ambient temperatures 

exist. High ambient temperatures (above 100 o F) can 

cause engine oil failure and will greatly reduce the 

engine’s performance.

gasoline engine 

The 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. 

pre-operation check 

Pump Oil (SAE 30W non-detergent oil) 

Cold Water Supply (6 gpm • 5/8" • 20 psi) 

Hose, wand, nozzle (nozzle size per serial plate) 

Water filter (intact, nonrestrictive) 

Engine fuel (unleaded 86 or higher) 

Engine oil (SAE 10W30) 

Burner fuel (No. 1 or No. 2 home heating fuel or diesel) 

oil burner 

burner air adjustment: The oil burner on this machine 

is preset for operation at altitudes below 3000 feet. If 

operated at higher altitudes, it may be necessary to adjust 

the air shutter and air band setting. Adjust the air shutter 

for a #1 or #2 smoke spot on the Bacharach scale. 

To adjust, start machine and turn burner ON (refer 

to operation for details). Loosen two locking screws 

found in the air shutter openings (refer to Figure 5) and 

close air shutter until black smoke appears from burner 

exhaust vent. Note air shutter 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. 

air band 

Figure 5 - Burner Adjustment 

installation instructions 

fuel 

filter 

pressure 

adjustment screw 


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. 

CAUTION: If white smoke appears from burner 

exhaust vent during start-up or operation, discontinue 

use and readjust air bands. 

NOTE: If a flue is installed, have a professional serviceman 

adjust your burner for a #1 or #2 smoke spot 

on the Bacharach scale. 


9


10 

before starting 

1. Read all manuals provided with this pressure washer. 

Become familiar with location and function of all 

operating and safety controls. 

WARNING: Check hoses, fittings, wand, trigger gun 

and fuel connections daily for signs of wear, cracks 

and looseness, and replace as required. 

2. Connect water supply hose to the garden hose connector 

located on pump. The water faucet and supply 

hose must be capable of providing a minimum of 3.5 

gallons per minute (GPM). 

3. Fill oil burner fuel tank. Use kerosene, #1 grade home 

heating oil, #1 or #2 diesel fuel. do not use gasoline, 

crankcase oil drainings, or Waste 

oil. 

WARNING: DO NOT fill engine fuel tank while engine 

is running or hot. Let engine cool before refueling or 

spontaneous fire may result. Fuel spillage or vapors 

could ignite if engine is hot. 

4. Fill the engine fuel tank. Do not overfill, fill to the 

bottom of filler neck only. Use lead free gasoline minimum 

86 octane. do not use gasoline containing 

more than 15% MTBE, 5% methanol or 10% ethanol. 

Refer to the provided gasoline engine manual for 

additional details. 

5. Check pump and engine oil levels. 

6. If detergents are to be used, only use detergents 

intended for pressure washers. Follow instructions on 

the detergent container. 

IMPORTANT: Before installing 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 

pressure nozzle from the end of the wand and turn 

on 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 the end of wand, refer to figure 6. 

manual 

trigger lock 

operation instructions 

pressure 

nozzle 

Figure 6 - Nozzle Installation/Manual Trigger Lock 


IMPORTANT: The trigger gun provided with this pressure 

washer is equipped with a manual trigger lock to 

prevent accidental operation of the trigger gun. (Refer 

to Figure 6.) The manual trigger lock should be used 

whenever the trigger gun is not in use. 

to start 

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 of the trigger gun released for more than 

2 minutes at any one time or damage to pump may 

occur. 

1. Turn ON water supply. 

2. Hold wand firmly, release trigger of trigger gun. 

3. Place engine ON/OFF switch in the ON position. 

4. Open fuel shutoff valve (if so equipped). Move choke 

lever to FULL CHOKE position, (choke may not be 

needed on warm engine). Move throttle lever to HALF 

THROTTLE position. 

5. Pull the rope starter slowly until resistance is felt, then 

pull briskly. Do not allow the rope starter to snap back 

against the engine. Return it gently to prevent damage 

to the starter. 

6. When the engine starts, move choke lever until 

engine runs smoothly. When engine warms, move 

choke lever to NO CHOKE position. Move throttle 

lever to FULL THROTTLE position. 

IMPORTANT: To allow for proper battery charging, 

the throttle control must be kept in the full throttle 

position during operation. 

NOTE: If engine fails to start, refer to Troubleshooting 

Guide in this manual. 

7. Squeeze trigger of trigger gun and allow air to purge 

from system. 

8. If hot water is desired, adjust the thermostat to the 

proper temperature and turn burner switch ON. The 

burner will light immediately with a small puff of smoke. 

You may need to initially adjust your burner for peak 

performance. See oil burner section under installation. 

When the trigger of the trigger gun is released 

or when the thermostat temperature setting is reached, 

the burner will automatically turn off. 

to clean 

The detergent injector valve operates by reducing the 

volume of water, thus a vacuum is achieved and detergent 

is drawn into the system. do not reduce the water inlet 

flow so the pump cavitates due to water starvation. 

Operating a pump with insufficient water will damage 

the pump seals. 

1. Insert detergent inlet line into container of mixed 

detergent.

2. Completely open detergent control knob located 

on the side of the detergent injector valve. Refer to 

figure 7. 

detergent on 

(counterclockwise) 

detergent 

control knob 

Figure 7 - Detergent Injector Valve 

3. Start the detergent suction by rotating the water 

adjustment knob of the detergent injector valve. 

Refer to figure 7. Turning the knob counterclockwise 

will pull detergent into the system. The flow may be 

observed through the clear detergent line. Secure the 

knob position with the knurled nut. 

4. The side detergent control knob can now be adjusted 

to meter the desired amount of detergent. 

5. 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. 

6. Do not wash at a 90 o 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 o to 60 o 

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. 

operation instructions 

detergent 

injector 

Water 

adjustment 

knob 


7. Use the width of the spray pattern to wash in a 

wide path. Overlap spray paths for complete coverage 

washing from side to side, using slow, steady 

motions. 

8. 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. 

9. 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. 

10. Turn the side detergent control knob clockwise (CW) 

for detergent decrease. Wait for detergent to clear. 

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 

1. If detergents were used, draw clear water through the 

detergent inlet 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. Move throttle lever to idle position. 

4. Turn engine ON/OFF switch to the OFF position. 

5. Close fuel shutoff valve (if so equipped). 

6. Turn water supply OFF. 

7. Squeeze trigger of trigger gun to relieve system 

pressure. 


11


12 

general cleaning techniQues & storage 

cleaning techniQues 

Pre-rinse cleaning surface with fresh water. Place detergent 

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. 

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 damage. 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 damage 

the surface being cleaned. 

rinsing 

It will take a few seconds for the detergent to clear. Apply 

safety latch to spray gun. Select and install desired high 

pressure nozzle. note: You can also stop detergent from 

flowing by removing detergent siphon tube from bottle. 

storage 

DANGER: DO NOT store flammable liquids (gasoline, 

diesel fuel, solvents, etc.) near pressure washer, or in 

non-ventilated areas. 

Protect from freezing by storing in a heated area, or by 

flushing the system with antifreeze (use an automotive 

engine antifreeze or windshield washer solvent to 

antifreeze). To flush the system with antifreeze, the 

following steps are to be followed: 

1. Connect the water supply hose to the garden 

hose connector located on the pump. Turn on water 

supply. 

2. Place the detergent inlet line into a container of 


antifreeze. 

3. Hold wand firmly, release trigger of trigger gun. 

4. Start engine. Place throttle lever in Full Throttle 

position. 

5. Squeeze trigger of trigger gun and allow water to 

flow from the end of the wand. Watch for antifreeze 

to be drawn through the detergent inlet line. Allow 

the antifreeze to be drawn into the system for 5 to 

10 seconds. 

6. Release the trigger of the trigger gun and stop 

engine. 

7. Turn off water supply and disconnect water supply 

hose from the pump. 

8. Attach a short length of hose (approximately 3 feet 

long) to the garden hose connector located on the 

pump. Install a funnel in the other end of the hose as 

shown in figure 8. 

9. Hold wand firmly, release the trigger of the trigger 

gun. 

10. Start engine. Place throttle lever in the idle position. 

11. Squeeze trigger on trigger gun. 

Figure 8 - Winterizing 

funnel 

garden hose connector 

12. Slowly pour antifreeze into the funnel. Continue to 

add antifreeze until antifreeze flows from the end of 

the wand. 

13. Squeeze and release the trigger of the trigger gun 

several times to antifreeze the unloader system. 

14. Release the trigger of the trigger gun. Stop engine. 

15. Squeeze the trigger of the trigger gun to relieve system 

pressure. 

For added protection, after antifreezing, disconnect the 

pressure hose from the machine and remove the coil drain 

plug (refer to component identification 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. 

Refer to the gasoline engine manual for engine storage 

information.

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 

Lubrication: To lubricate pump, use 30W non-detergent oil 

for pump crankcase. Crankcase must be filled to center of 

red dot on oil gauge found on the side of the pump, refer 

to figure 9. During the break-in-period, make sure the 

oil is changed after the first 40 hours of operation. After 

that, replace oil every 3 months or 500 hours of operation, 

whichever comes first. 

Figure 9 - Pump Lubrication 

proper pump care: 

do not pump acids. 

do not allow pump to run dry. 

Winterize if storing in freezing temperatures, refer 

to storage for details. 

Use a water softener on the water system if known 

to be high in mineral content. 

Use only high quality detergents and follow manufacturer's 

mix recommendations. 

Flush the system with clear water immediately 

after using detergent solutions. 

Clean filter screen on detergent inlet line 

periodically. 

Flush the pressure washer system with antifreeze 

if storing for an extended period of time, refer to 

storage for details. 

gasoline engine 

oil fill/dipstick 

Refer to the provided gasoline engine manual for 

recommended maintenance. 

maintenance 

oil sight 

glass 

oil drain 

plug 

oil burner 


blower motor: Inspect the motor brushes for wear every 

250 hours of operation and replace when 1/8" to 1/4" 

brush material remains. do not allow the brushes to 

wear out completely or motor damage will occur. Refer to 

burner assembly. The motor bearings are permanently 

lubricated and will not require any additional lubrication. 

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. For 

replacement refer to Pump Assembly. 

burner fuel filter 

Drain any water which has accumulated in fuel filter 

and clean or replace filter element as needed. Refer to 

burner assembly. 

heating coil 

coil descaling: 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 

descaling is needed. 

coil desooting: Poor grades of fuel oil or inadequate 

combustion air will cause heavy soot buildup on the 

outside surface of the heating coil. These deposits will 

insulate the coil. This will restrict the air flow through the 

coil, further aggravating the soot buildup. Contact your 

local service center when desooting is needed. 

hour meter 

This hour meter will monitor the total hours of operation of 

the pressure washer to signal when routine maintenance 

is required. 

battery 

Refer to battery manufacturer’s literature for 

recommended maintenance. 


13

PRESSURE WASHER Troubleshooting Guide 

14 

troubleshooting 

symptom possible causes corrective action 

gas engine Will 

not run. 

pressure 

Washer runs but 

Won’t spray. 

loW spray 

pressure at 

pressure 

noZZle. 

uneven spray 

pattern. 

pressure 

Washer Will not 

produce hot 

Water. 

Out of gas. Replenish supply. Use only recom-mended 

fuels. Refer to Before Start-ing under Operation. 

Fuel valve closed (if so equipped). Open valve. 

Loose spark plug wire. Reconnect. 

Choke or throttle set incorrectly. Refer to To Start under Operation. 

Engine ON/OFF switch in OFF 

position. 


Place engine ON/OFF switch in ON position. 

Low engine oil level. Replenish supply. Engine will not start or run 

if oil is low (on engines equipped with low oil 

protection). 

Refer to provided gasoline engine manual for additional troubleshooting. 

Trigger of trigger gun released. Squeeze trigger. 

Water supply not turned on. Open water supply valve. 

Clogged pressure nozzle. Clean pressure nozzle opening. 

If water spray doesn’t show with in 

10-15 seconds 

Discontinue running the machine and troubleshoot 

as damage to the pump will occur if 

allowed to run 

Inadequate water supply. Fully open faucet. Check for kinked or damaged 

hose. Use 3/4 inch minimum hose. Check 

for debris clogging inlet screen. 

Partially clogged or damaged pressure 

nozzle. 

Air being drawn through detergent 

inlet line. 

Detergent injector valve not set 

correctly. 

Partially clogged or damaged pressure 

nozzle. 

Clean or replace. 

Refill detergent container. Ensure that pick-up 

screen is fully immersed. 

Refer to To Clean for settings. 

Clean or replace. 

Burner switch in OFF position. Place switch in ON position. 

Inadequate fuel supply. Refill fuel tank. Use only recommend-ed fuels. 

Refer to Before Starting under Operation. 

Inadequate water supply. Fully open faucet. Check for kinked or damaged 

hose. Use 3/4 inch minimum hose. Check 

for debris clogging inlet screen. 

Trigger of trigger gun released. Squeeze trigger. Water must be spraying for 

burner to light. 

Thermostat set too low. Adjust thermostat to desired temp-erature. 

Blown fuse. Replace. Fuse is located in control box. 

Engine is running too slow. Move throttle lever to full throttle position.

troubleshooting 

symptom possible causes corrective action 

poor or no 

detergent floW. 

Inadequate detergent supply. Refill detergent container. Ensure that 

pick-up screen is fully immersed. Open 

detergent valve. 

Detergent screen or hose clogged. Clean. Always start with a clean deter-gent 

container. 

Detergent injector valve not set 

correctly. 

Clogged detergent injector check 

valve. 

poor cleaning. Improper detergent concentration or 

mixing. 

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 or 

by calling 1-800-525-1976. 

When ordering from your dealer, please provide the following: 

model number: 965ss, 1060ss, 1065ss, 1065sse, 1075sse 

machine serial number: ________________________________ 

component part number: ______________________________ 

description: __________________________________________ 


Refer to To Clean for settings. 

Clean check valve at detergent injector 

inlet 

Mix detergent per manufacturer’s instructions. 

Ensure that powdered detergents are 

fully dissolved. 

Wrong detergent for the application. Select appropriate detergent. 

Rinsing with hot water. A final rinse with cold water will reduce 

water spotting. 

PRESSURE WASHER Troubleshooting Guide 

15


16 

1065ss 

1065sse 

1075sse 

for 

detail see 

fuel tank 

assy. 

for 

detail see 

pump 

assy. 

view a-a 

foot brake assy. 

(reversed view) 

exploded vieW - left side 

39 

51 

18 

19 

59 

53 

61 

60 

54 

21 

62 

52 

61 

55 

23 24 

64 

63 

38 

57 


22 

48 

56 

46 

45

for 

detail see 

coil inlet 

assy. 

for 

detail see 

control 

box illus. 

20 

49 

exploded vieW - right side 

for 

detail see 

coil outlet 

assy. 

25 

1 

10,11 

9 

8 

2 

6 

16 

68 

7 

27 

44 

26 

17 

47 

49 

for 

detail see 

burner 

assy. 

29 

29 

58 

50 

36 

13 

32 

35 


3 

4 

5 

28 

30 

31 

15 

for 

foot brake 

detail see 

view 

a-a 

34 

14 

39 

40 

43 

12 

12 

39 

37 

42 

43 

41 


17


18 

exploded vieW parts list 

item part no. description Qty 

1 961532 Tubing 3/8" 38” 

2 9.800-049.0 Label, Cleaning Solution 1 

3 213044 Burner Exhaust Vent 1 

4 268004 Insulation 1 

5 860102 Retaining Ring 1 

6 780452 Flat Washer 5/16" 6 

7 703155 Locknut 5/16" - 18 4 

8 646113 Decal Detergent Metering 1 

9 834159 Decal Hotsy Detergents 1 

10 826167 Strain Relief 2 

11 703127 Strain Relief Nut 2 

12 703185 Locknut 1/4" - 20 (Battery Models Only) 6 

13 375292 Mounting Plate (Battery Models Only) 1 

14 220119 Battery Box (Battery Models Only) 1 

15 890904 Battery Terminal (Battery Models Only) 2 

16 834154 Decal Winterize 1 

17 10-07993 Decal Warnings 1 

18 612984 Bolt 3/8" - 16 x 1" 4 

19 780480 Lock Washer 3/8" 4 

20 375578 Chassis (1065SS, 1065SSE, 1075SSE) 1 

375575 Chassis (965SS) 1 

21 232025 Decal Battery 1 

22 444462 Decal Caution Gasoline 1 

23 646115 Decal Hot Surface 1 

24 646026 Decal Carbon Monoxide 1 

25 834416 Decal Operating Instruction 1 

26 240834 Coil (1065SS, 1065SSE, 1075SSE) 1 

226222 Coil (965SS) 1 

27 824115 Vent Clip 4 

28 375449 Coil Tank (965SS) 1 

375446 Coil Tank (1065SS,1065SSE,1075SSE) 1 

29 926598 Rivet 8 

30 829979 Hotsy Logo Plate 2 

31 646095 Decal Troubleshooting 1 

32 268013 Insulation (1065SS, 1065SSE, 1075SSE) 1 

268006 Insulation (965SS Only) 1 

33 213191 Pancake Insulation 1 

34 859806 Grommet 1 

35 859815 Grommet (Nozzle Holder) 3 

36 815329 Snap Bushing 1 

37 77-31620-2GS-003 Voltage Reg. (1065SSE,1075SSE) 1 

860273 Voltage Reg. (965SS,1065SS) 1 

38 860285 Reducer, M12 to 1/4” Female 1 

39 780451 Washer Flat 1/4" 10 

40 983013 Wheel 4 


exploded vieW parts list 


41 817322 Hubcap 4 

42 848616 Push Nut 4 

43 980254 Flat Washer 5/8" 8 

44 815329 Snap Bushing 3 

45 661282 Engine 11 HP (1065SS) 1 

661254 Engine 9 HP (965SS) 1 

661364 Engine, E-Start 11 HP (1065SSE) 1 

677375 Engine, E-Start 13 HP (1075SSE) 1 

46 890783 Tag Gasoline Engine 1 

47 2-010532 Mount , Vibration, 3/8” Rubber 70 Dura 4 

48 612985 Bolt, 3/8” x 1-1/2” NC HH 4 

49 703107 Flange Nut 5/16" - 18 8 

50 780460 Fender Washer 5/16" 4 

51 95-07104827 Lever, Brake 1 

52 95-07104829 Linkage, Brake, Red 1 

53 95-07101828 Bracket, Brake Pad, red 1 

54 90-100472 Bolt, 1/4-20 x 1.0 Plt, Carriage, Zinc 4 

55 703185 Nut, 1/4" ESNA, NC 4 

56 780562 Washer, 3/8" SAE Flat 4 

57 780480 Washer, 3/8" Lock, Split Ring 4 

58 9.800-018.0 Label, Tip-Over Hazard 1 

59 630980 Cap, Pipe, 1/8" NPT, Brass 1 

60 698019 Hose Barb, 1/4" Barb x 1/8" ML Pipe 1 

61 823988 Clamp, Hose 2 

62 867368 Hose, 1/4" Push-On 3” 

63 698020 Hose Barb, 1/4" Barb x 1/4" ML 1 

64 921584 Valve, Mini Oil Drain 1 

65 823987 Hose Clamp 1 



19


20 

control panel assembly exploded vieW & parts list 

3 

5 

4 

2 

6 

7 

19 

1 


1 983516 Box, Front 1 

2 11-0511 Label, Control Box 1 

3 4-050823 Hour Meter, 12-28 V DC 1 

4 875465 Switch, Rocker, 15A/12V 1 

5 835150 Knob, Thermostat 1 

6 735321 Screw, 4mm x 6mm, Pan Head 2 

7 915390 Plate, Thermostat Cover 1 

8 955940 Thermostat 1 

9 707147 Capacitor (965SS, 1065SS) 1 

10 612937 Bolt, 1/4" x 3/4" 4 

11 2-011681 Cap, Capacitor (965SS,1065SS) 1 

12 703127 Locknut, 1/2" 3 

13 615414 Box, Back 1 

14 703185 Nut, 1/4" 4 

15 876032 Strain Relief 3 

16 358026 Clamp (965SS,1065SS) 1 

17 612945 Bolt, 1/4-20 x 1/2" (965SS, 1065SS) 1 

18 703106 Nut, 1/4" (965SS,1065SS) 1 

676638 Fuse, ATC 30 Amp 1 

707146 Holder, Fuse 1 

829620 Plug 1 

19 70-180503 Screw, M4 x 10 4 

20 70-030207 Nut, M4 4 

Not Shown 

10 

11 

17 


8 

18 

12 

16 

9 

15 

14 

20 

13

urner assembly exploded vieW and parts list 

inlet from 

fuel tank 

1/8” 


1 783813 Motor 1 

2 661413 Electrode (Pair) 1 

3 799429 Nozzle 1 

900650 Nozzle (965SS Only) 1 

4 890742 Ignitor 1 

5 723369 Solenoid Valve 1 

6 616027 Burner (965SS) 1 

615856 Burner (1065SS,1065SSE, 1075SSE) 1 

7 830492 Fuel Pump 1 

8 698200 Nipple 1/4" x 2-1/2" 1 

9 615279 Reducer Bushing 3/8" x 1/4" 1 

10 851080 Fuel Filter 1 

11 698023 Nipple 3/8" x 1/4" Hose 1 

12 698020 Nipple 1/4" x 1/4" Hose 1 

753046 Brush Kit 2 

630730 Coupling 1 

676640 Blower Fan 1 

826167 Strain Relief 

703127 Strain Relief Nut 1 

replacement parts 

875490 Filter Element 1 

Not Shown 

1/4” 

air cone 

5/16” 3/16” 

2 

return to 

fuel tank 

11 

3 

10 

6 


1 

9 

8 

12 

5 

7 

4 


21


22 

12,13 

10 

11 

1 

fuel tank assembly 

3 

5 

6 

4 7 

fuel tank parts list 


1 834153 Decal, Fuel Type 1 

2 952733 Fuel Tank 1 

3 817312 Fuel Tank Cap 1 

4 707116 Hose, 1/4" (Green) 19” 

5 661277 Elbow 1/4" Hose x Stand Pipe 1 

6 815230 Bushing, Rubber, Nitrile 2 

7 309294 Nipple 3/8" Hose x 1/4" Hose 1 

8 823988 Hose Clamp 4 

9 867368 Hose, 1/4" (Black) 19” 

10 613072 Bolt, 5/16", Wing 1 

11 703186 Nut, 5/16" Wing 1 

12 780460 Washer, 5/16" x 1-1/4" Fender, SAE 1 

13 915620 Plug, Expansion, Rubber, .75 1 


2 

8 

return from 

burner 

9 

to burner 

inlet

pump assembly - 965ss exploded vieW and parts list 

21 

15 

16 

17 

1 

2 

14 

20 


1 5-1255 Pump, Hotsy HG3035G1, 3@3500 1 

2 5-3329 Unloader, VBA35 6.6 @ 3500 1 

3 921422 Pump, Protector, 1/2" PTP 1 

4 722774 Nipple, 1/2" x 3/8", Pipe 1 

5 873596 Injector, Adjustable, Inlet 1 

6 961534 Hose, 1/4" x 1/2" Braided Vinyl 4 ft. 

7 935159 Strainer, Chemical w/1/4" Brass Barb 1 

8 823989 Clamp, Hose, UNI .40-.48ST 1 

9 4-02047722 Hose, 3/8” x 22”, 2 Wire 1 

10 801126 Swivel, 3/8" MP x 3/4" GHF w/Strainer 1 

11 921395 Valve, Anti-Siphon, Watts 8BI 1 

12 661357 Elbow, 1/2" JIC, 3/8", 90° 1 

13 830302 Plug, 1/4" Countersunk 1 

14 875966 Switch, Pressure, N/O 3/8 1 

15 95-07101128 Rail, Pump Support 1 

16 780452 Washer, 5/16" Flat SAE 2 

17 90-1030 Bolt, 8mm x 16mm, Hex Head 2 

18 90-40125 Washer, 3/8" x 14 1 

19 90-1017 Bolt, 3/8" x 1-1/4", NC HH 1 

20 90-2002 Nut, 3/8" ESNA 1 

21 2-01041 Pad, Soft Rubber 1 


4 

3 

5 

18 

19 

8 

9 

12 

10 

7 

6 

11 


23


24 

13 

17 

11 

pump assembly - 1065ss, 1065sse, 1075sse 

12 

16 

14 

8 

10 

7 

15 

1 

to coil 

9 

22 

18 


6 

5 

19 

4 

2 

3 

23 

24 

20 

21 

25

pump parts list - 1065ss, 1065sse, 1075sse 


1 5-1261 Pump (1065SS,1065SSE) 1 

5-1262 Pump (1075SSE) 1 

2 644802 Street Elbow 3/8" 1 

3 844758 Street Elbow 1/2" 1 

4 600071 Reducing Nipple 1/2" x 3/8" 1 

5 873596 Detergent Injector Valve 1 

6 875575 Garden Hose Connector Spring 1 

7 801126 Garden Hose Connector 1 

8 856035 Garden Hose Connector Gasket 1 

9 823989 Hose Clamp 1 

10 961534 Tubing 1/4" 48" 

11 935159 Filter Screen 1 

12 921422 Thermal Relief Valve 1 

13 644751 Elbow 3/8" 1 

14 5-3029 Unloader, VB55 1 

15 890769 Tag Unloader 1 

16 707189 Hose 3/8" x 28" 1 

17 921395 Valve, Anti-siphon 1 

18 875651 Pressure Switch, Black (1065SSE) 1 

885680 Pressure Switch, Red (1075SSE) 1 

19 95-07101124 Rail, Pump Support 1 

20 90-400910 Washer, 7/16" Lock, Split Ring 2 

21 90-10343 Bolt, 10mm x 20mm 2 

22 2-01041 Pad, Soft Rubber 1 

23 90-1017 Bolt, 3/8" x 1-1/4", NC HH 1 

24 90-40125 Washer, 3/8" x 1" 1 

25 90-2002 Nut, 3/8" ESNA 1 



25


26 

965ss coil outlet exploded vieW 

1 

3 

2 

4, 5 

965ss coil outlet parts list 


1 698247 Hex Nipple 1/2" x 2' 1 

2 875555 Relief Valve Seat 1 

3 799501 Elbow, 1/4" x 3/8" Hose 1 

4 780565 Copper Washer 2 

5 915630 Plug 3/8" 2 

6 783845 Relief Valve Manifold 1 

7 735321 Screw 4mm x 6mm 1 

8 640100 Relief Valve Cartridge 1 


7 

6 

8

1065ss, 1065sse coil outlet assembly 

1 

1065ss, 1065sse coil outlet parts list 


1 698247 Hex Nipple 1/2" x 2" 1 

2 875555 Relief Valve Seat 1 

3 799501 Elbow, 1/4" x 3/8" Hose 1 

4 780565 Copper Washer 2 

5 915630 Plug 3/8" 2 

6 783845 Relief Valve Manifold 1 

7 735321 Screw 4mm x 6mm 1 

8 644802 Elbow, Street 3/8" 1 

9 640100 Relief Valve Cartridge 1 

Not Shown 

9 

8 


6 

4, 5 

7 

2 

3 


27


28 

1075sse coil outlet assembly 

1 

4 

2 

1075sse coil outlet parts list 


1 698247 Hex Nipple 1/2" 1 

2 921471 Valve, Relief, Service 1 

3 389522 Well, Thermostat, 3/4" Brass 1 

4 644802 Elbow, Street 3/8" 2 

5 299575 Manifold Coil Outlet 1 

6 735226 Screw, 6/32 x 1/2" PL SLTD RHD 1 

Not Shown 

3 


6 

5 

4

coil inlet assembly 

1 

coil inlet parts list 


1 801102 Hex Nipple 3/8" x 2" (965SS) 1 

698247 Hex Nipple, 1/2” x 2” (1065SS, 1065SSE, 1075SSE) 1 

2 754711 Tee , 3/8” (965SS) 1 

754717 Tee, 1/2” (1065SS, 1065SSE, 1075SSE) 1 

3 715744 Coil Drain Plug (965SS) 1 

715755 Coil, Drain Plug (1065SS, 1065SSE, 1075SSE) 1 


2 

3 


29


30 


1 691867 Trigger Gun (1065SS, 1065SSE, 1075SSE) 1 

860447 Trigger Gun (965SS) 1 

2 915786 Quick Disconnect Plug 1 

3 826169 Quick Disconnect 2 

4 936647 Wand 1 

5 799000 Pressure Nozzle Red (1065SS, 1065SSE, 1075SSE) 1 

799091 Pressure Nozzle Red (965SS) 1 

6 799012 Pressure Nozzle Yellow (1060SS,1065SS,1065SSE, 1075SSE) 1 

799092 Pressure Nozzle Yellow (965SS) 1 

7 799024 Pressure Nozzle White (1065SS, 1065SSE,1075SSE) 1 

799093 Pressure Nozzle White (965SS) 1 

8 867207 High Pressure Hose (965SS, 1065SS, 1065SSE) 1 

707169 High Pressure Hose (1075SSE) 1 

replacement parts 

hose, spray gun & Wand assembly 

1 

2 

3 

8 

4 

hose, spray gun & Wand assembly 

859762 Insulator Grip Assembly 1 

859763 Side Handle Grip 1 

753179 Trigger Gun Repair Kit 1 


3 

5,6,7

5-3329 6.6 gpm @3500 psi 

vba35 unloader exploded vieW 

vba35 unloader exploded vieW parts list 

item part # description kit Qty 

1 70-020444 Body Valve 1 

70-020452 Body Valve 1 

2 70-060141 O-Ring A, C 1 

3 70-150316 Seat C 1 

4 70-450401 Ball, Sub-assy C 1 

5 70-060114 O-Ring A 1 

6 70-010111 Guide Bushing 1 

7 70-000919 Teflon Ring A 1 

8 70-060170 O-Ring A 2 

9 70-060162 O-Ring A 1 

10 70-140734 Connector 1 

11 70-000918 Teflon Ring A 1 

12 70-120611 Stem C 1 

13 70-140702 Connector, Female 1 

14 70-060119 O-Ring A, B 1 

15 70-090004 Spring B 1 


item part # description kit Qty 

16 70-110207 Poppet B 1 

17 70-140802 Seal Washer 3/8 2 

18 70-180004 Hollow Bolt, 3/8 1 

19 70-180008 Hollow Bolt 1/2 1 

20 70-140803 Seal Washer 1/2 2 

21 70-120212 Plate C 1 

22 70-090037 Spring C 1 

23 70-180304 Set Screw 1 

24 70-030209 Nut 1 

25 70-090520 Brass Handle 1 

kit a 70-262813 O-Ring Repair Kit 

kit b 70-262814 Outlet Kit 

kit c 70-262815 Stem Repair Kit 


31


32 

pump exploded vieW - hs3040g, hs3540g, hs4040g, hs5030g 

pump - exploded vieW parts list 


1 70-020225 Crankcase 1 

2 70-060201 Plunger Guide 3 

3* 70-000103 Plunger Oil Seal 3 

4* 70-060107 O-Ring Ø1.78 x 31.47 3 

5* 70-000220 "V" Seal , 15mm 6 

6* 70-120120 Pressure Ring, 15mm 3 

7* 70-030027 Support Ring 15mm 6 

8* 70-030020 Intermed. Ring 15mm 3 

9 70-160120 Brass Plug, 1/2" 1 

10 70-060307 Copper Washer 1/2" 1 

11 70-160216 Manifold Housing 1 

12* 70-060119 O-Ring Ø2.62 x 17.13 6 

13* 70-360470 Valve Assembly 6 

14* 70-060165 O-Ring Ø2.62 x 20.29 6 

15 70-160130 Valve Plug 6 

16 70-180103 Manifold Stud Bolt 8 

17 70-140001 Washer 8 

18 70-060306 Copper Washer 3/8" 1 

19 70-160117 Brass Plug 3/8" 2 

20** 70-150318 Valve Seat 6 

21** 70-120200 Valve Plate 6 

22** 70-090030 Valve Spring 6 

23** 70-060405 Valve Cage 6 

24 70-180112 Hexagonal Screw 9 


torQue 

specs 

Item # Ft.-lbs 

15 75 

16 30 

24 18 

34 9 

45 13 

51 11


25 70-140002 Washer 4 

26 70-050056 Closed Bearing Housing 1 

27 70-060163 O-Ring Ø 1.78 x 60.05 2 

28 70-150003 Snap Ring 1 

29 70-021310 Double Row Ball Bearing 1 

30 70-000491 Crankshaft (3040G) 1 

70-000492 Crankshaft (3540G) 1 

70-000493 Crankshaft (4040G) 1 

70-000494 Crankshaft (5030G) 1 

31 70-180302 Set Screw 1 

32 70-160006 Oil Dip Stick 1 

33 70-020010 Needle Roller Bearing 1 

34 70-050055 Engine Flange 1 

35 70-140304 Spring Washer 4 

36 70-180128 Flange Screw 4 

37 70-180220 Engine Screw, 5/16" 4 

38 70-140051 Washer 4 


40 70-180221 Engine Screw 3/8" 4 

41 70-140052 Washer 4 


43 70-000109 Crankshaft Seal 1 

44* 70-030211 Plunger Nut 3 

45* 70-120023 Plunger, 15mm 3 

46* 70-140027 Copper Spacer 3 

47* 70-060130 O-Ring Ø1.78x5.28 3 

48* 70-000913 Teflon Ring 3 

49 70-000302 Plunger Rod 3 

50 70-150001 Snap Ring 6 

51 70-150201 Connecting Rod Pin 3 

52 70-010001 Connecting Rod 3 


54 70-180105 Connecting Rod Screw 6 

55 70-060009 Cover Gasket 1 

56 70-020350 Crankcase Cover 1 

57 70-060302 Gasket, G3/8 1 

58 70-070001 Sight Glass, G3/8 1 

* Part available in kit (See below) 

** Part available in kit ONLY (See below) 

pump - exploded vieW parts list 

REPAIR KIT NUMBER 70-260824 70-260825 70-260823 70-260007 70-260027 

KIT DESCRIPTION 

Plunger 

Seal 15mm 

Complete 

Seal Packing 

15mm 

ITEM NUMBERS INCLUDED 4, 5, 7 3, 4, 5, 6, 7, 8 

NUMBER OF CYLINDERS 

KIT WILL SERVICE 

Plunger 15mm 

44, 45, 46, 47, 

48 


Complete 

Valve 

Plunger Oil 

Seals 

12, 13, 14 3 

3 1 1 6 3 


33


34 

5-1255 hg3035g1 

5-1256 hg3535g1 

5-1258 hg4030g1 


1 70-020292 Crankcase 1 

2* See Kit Below Plunger Oil Seal 3 

3* 70-060107 O-Ring Ø1.78 x 31.47 3 

4* 70-120120 Pressure Ring, 15mm 3 

5* See Kit Below "V" Seal, 15mm 6 

6* 70-030027 Support Ring 15mm 6 

7 70-030049 Intermediate Ring, 15mm 3 

8 70-160120 Brass Plug, 1/2" 1 

9 70-060307 Copper Washer 1/2" 1 

10 70-160228 Manifold Housing 1 

11* 70-060155 O-Ring Ø1.78 x 15.54 6 

12* See Kit Below Valve Assembly 6 

13* 70-060122 O-Ring Ø2.62 x 18.77 6 

14 70-160147 Valve Plug 6 

15 70-060308 Washer, Copper 1 

16 70-160121 Brass Plug G1/4 1 

17 70-180118 Manifold Stud Bolt 8 

18 70-140001 Washer 8 

hg-1 pump exploded vieW 

hg-1 pump exploded vieW parts list 


torQue 

specs 

Item # Ft.-lbs 

14 65 

17 22 

25 8 

37 8 

39 9 

48 1 


19 70-060306 Copper Washer 3/8" 1 

20 70-160117 Brass Plug 3/8" 2 

25 70-180112 Hexagonal Screw 9 

26 70-020318 Bearing Cover 1 

27 70-020502 Seal Bearing 1 

28 70-150003 Snap Ring 1 

29 70-021300 Ball Bearing 1 

30 70-000495 Crankshaft (3035G1) 1 

70-000496 Crankshaft (3535G1) 1 

70-000497 Crankshaft (4030G1) 1 

31 70-180302 Set Screw 1 

32 70-160012 Oil Dip Stick 1 

33 70-060183 O-Ring 3.53 x 55.56 1 

34 70-020010 Needle Roller Bearing 1 

35 70-050055 Engine Flange 1 


37 70-180132 Flange Screw 4


38 70-000109 Crankshaft Seal 1 

39* 70-030211 Plunger Nut 3 

40* See Kit Below Plunger, 15mm 3 

41* 70-140027 Copper Spacer 3 

42* 70-060130 O-Ring Ø1.78x5.28 3 

43* 70-000913 Teflon Ring 3 

44 70-000320 Plunger Rod 3 

45 70-150204 Connecting Rod Pin 3 

46 70-010008 Connecting Rod 3 


48 70-180132 Connecting Rod Screw 6 

49 70-070005 Sight Glass, G3/8 1 

50 70-060302 Gasket, G3/8 1 

51 70-020352 Crankcase Cover 1 

52 70-060104 O-Ring 2.62 x 107.62 1 

* Part available in kit (See below) 

repair kit 

number 70-261408 70-261409 70-261404 70-260028 70-260826 

KIT DESCRIPTION 

ITEM NUMBERS 

INCLUDED 

NUMBER OF CYLINDERS 

KIT WILL SERVICE 

hg-1 pump exploded vieW parts list 

Plunger Seal 

15mm 

3, 5, 6 

Complete 

Seal Packing 

15mm Plunger 15mm Complete Valve 

2, 3, 4, 5, 

6, 7 

39, 40, 41, 

42, 43 


Plunger Oil 

Seals 

11, 12, 13 2 

3 1 1 6 3 


35

PRESSURE WASHER Wiring Diagram 

36 

Wiring diagram - 1065sse, 1075sse 


Wiring diagram - 965ss, 1065ss 


PRESSURE WASHER WARRANTY Wiring Diagram 37

WARRANTY 

HOTSY LIMITED WARRANTY: 

Hotsy products are warranted by the Hotsy Corporation (Hotsy) to be free of defects in material and 

workmanship under normal use, for a period of ONE YEAR from the date of the original purchase. 

Items that fail due to normal wear such as o-rings hoses, seals, quick couplers, nozzles, gunjets, etc. or 

damage resulting from neglect, abuse, tampering, or modification are not covered under this warranty. 

Hotsy will at its option repair or replace any part covered by this warranty which is defective under 

normal use for one year at no charge for parts or labor. All defects must be verified by an authorized 

Hotsy service location. This warranty is not transferable. 

EXCEPTIONS TO THE ONE YEAR WARRANTY FOR PARTS ONLY ARE: 

Hotsy Pumps: SEVEN YEAR Warranty (LIFETIME Brass Manifold Warranty- 

Even Against Freezing) 

LIMITATION OF LIABILITY: 

General Pumps: FIVE YEAR Warranty 

Heating Coils: FIVE YEAR Warranty 

To the extent allowable under applicable law, Hotsy liability for consequential and incidental damages 

is expressly disclaimed. Hotsy liability in all events is limited to, and shall not exceed, the purchase 

price paid for the equipment. Hotsy liability is limited to repair or replacement of defective parts only, at 

the option of the Hotsy Corporation. 

WARRANTY DISCLAIMER: 

Hotsy has made a diligent effort to illustrate and describe the product in this literature accurately; 

however, such illustrations and descriptions are for the sole purpose of identification, and do not 

express or imply a warranty that the product is merchantable or fits a particular purpose, or that the 

product will necessarily conform to the illustrations or descriptions. 

PRODUCT SUITABILITY: 

Many states and localities have codes and regulations governing sales, construction, installation, and/ 

or use of products for certain purposes, which may vary from those in neighboring areas. While 

attempts to assure that its products comply with such codes, it cannot guarantee compliance and 

cannot be responsible for how the product is installed or used. Before purchase and use of a product, 

please review the product application, and national and local codes and regulations, and be sure that 

the product, installation, and use will comply with them. 

PROMPT DISPOSITION: 

Hotsy will make a good faith effort for prompt correction or other adjustments with respect to any 

product which proves to be defective within limited warranty. For any product believed to be defective 

within limited warranty, contact dealer from whom product was purchased. Dealer will give additional 

directions. If product was damaged in transit to you, file claim with freight carrier. 

The Hotsy Corporation 

www.hotsy.com 

1-800-525-1976 

REV. 5/06 • 97-6554

Hotsy 965SS-1075SSE 97-6554 0605 - ETS Company Pressure ...

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