OPERATING INSTRUCTIONS AND PARTS MANUAL

1800 GAS-FIRED SERIES OPERATING INSTRUCTIONS AND PARTS MANUAL 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! NOTE: This manual is intended for use with the following model releases only: 1812SS 1822SS 1825SS 1852SS 1862SS 1855SS 1812SS-208 1822SS-208 1836SS 1852SS-208 1862SS-208 1856SS serial number: date purchased: for sales and service, please contact:

1812SS SPECIFICATIONS Pump Volume At Pump Head: 5.9 GPM/354 GPH Pump Pressure At Pump Head: 2500 PSI Burner Type: Natural Gas Fired, 558,058 BTU/Hr. Machine Voltage: 230VAC/60Hz/1Ph Total Machine Amperage: 42 Amps Machine Weight: 770 Lbs. Shipping Weight: 885 Lbs. Exhaust Stack Size: 10" Machine Dimensions: Length=51.5", Width=25.5", Height=56" 1825SS SPECIFICATIONS Pump Volume At Pump Head: 5.9 GPM/354 GPH Pump Pressure At Pump Head: 2500 PSI Burner Type: Natural Gas Fired, 558,058 BTU/Hr. Machine Voltage: 460VAC/60Hz/3Ph Total Machine Amperage: 14 Amps Machine Weight: 770 Lbs. Shipping Weight: 885 Lbs. Exhaust Stack Size: 10" Machine Dimensions: Length=51.5", Width=25.5", Height=56" 1812SS-208 SPECIFICATIONS Pump Volume At Pump Head: 5.9 GPM/354 GPH Pump Pressure At Pump Head: 2500 PSI Burner Type: Natural Gas Fired, 558,058 BTU/Hr. Machine Voltage: 208VAC/60Hz/1Ph Total Machine Amperage: 48 Amps Machine Weight: 770 Lbs. Shipping Weight: 885 Lbs. Exhaust Stack Size: 10" Machine Dimensions: Length=51.5", Width=25.5", Height=56" 1836SS SPECIFICATIONS Pump Volume At Pump Head: 5.9 GPM/354 GPH Pump Pressure At Pump Head: 2500 PSI Burner Type: Natural Gas Fired, 558,058 BTU/Hr. Machine Voltage: 575VAC/60Hz/3Ph Total Machine Amperage: 11 Amps Machine Weight: 770 Lbs. Shipping Weight: 885 Lbs. Exhaust Stack Size: 10" Machine Dimensions: Length=51.5", Width=25.5", Height=56" 1822SS SPECIFICATIONS Pump Volume At Pump Head: 5.9 GPM/354 GPH Pump Pressure At Pump Head: 2500 PSI Burner Type: Natural Gas Fired, 558,058 BTU/Hr. Machine Voltage: 230VAC/60Hz/3Ph Total Machine Amperage: 28 Amps Machine Weight: 770 Lbs. Shipping Weight: 885 Lbs. Exhaust Stack Size: 10" Machine Dimensions: Length=51.5", Width=25.5", Height=56" 1852SS SPECIFICATIONS Pump Volume At Pump Head: 4.8 GPM/288 GPH Pump Pressure At Pump Head: 3000 PSI Burner Type: Natural Gas Fired, 558,058 BTU/Hr. Machine Voltage: 230VAC/60Hz/1Ph Total Machine Amperage: 42 Amps Machine Weight: 770 Lbs. Shipping Weight: 885 Lbs. Exhaust Stack Size: 10" Machine Dimensions: Length=51.5", Width=25.5", Height=56" 1822SS-208 SPECIFICATIONS Pump Volume At Pump Head: 5.9 GPM/354 GPH Pump Pressure At Pump Head: 2500 PSI Burner Type: Natural Gas Fired, 558,058 BTU/Hr. Machine Voltage: 208VAC/60Hz/3Ph Total Machine Amperage: 33 Amps Machine Weight: 770 Lbs. Shipping Weight: 855 Lbs. Exhaust Stack Size: 10" Machine Dimensions: Length=51.5", Width=25.5", Height=56" 1852SS-208 SPECIFICATIONS Pump Volume At Pump Head: 4.8 GPM/288 GPH Pump Pressure At Pump Head: 3000 PSI Burner Type: Natural Gas Fired, 558,058 BTU/Hr. Machine Voltage: 208VAC/60Hz/1Ph Total Machine Amperage: 48 Amps Machine Weight: 770 Lbs. Shipping Weight: 885 Lbs. Exhaust Stack Size: 10" Machine Dimensions: Length=51.5", Width=25.5", Height=56"

1862SS SPECIFICATIONS Pump Volume At Pump Head: 4.8 GPM/288 GPH Pump Pressure At Pump Head: 3000 PSI Burner Type: Natural Gas Fired, 558,058 BTU/Hr. Machine Voltage: 230VAC/60Hz/3Ph Total Machine Amperage: 28 Amps Machine Weight: 770 Lbs. Shipping Weight: 885 Lbs. Exhaust Stack Size: 10" Machine Dimensions: Length=51.5", Width=25.5", Height=56" 1855SS SPECIFICATIONS Pump Volume At Pump Head: 4.8 GPM/288 GPH Pump Pressure At Pump Head: 3000 PSI Burner Type: Natural Gas Fired, 558,058 BTU/Hr. Machine Voltage: 460VAC/60Hz/3Ph Total Machine Amperage: 14 Amps Machine Weight: 770 Lbs. Shipping Weight: 885 Lbs. Exhaust Stack Size: 10" Machine Dimensions: Length=51.5", Width=25.5", Height=56" 1862SS-208 SPECIFICATIONS Pump Volume At Pump Head: 4.8 GPM/288 GPH Pump Pressure At Pump Head: 3000 PSI Burner Type: Natural Gas Fired, 558,058 BTU/Hr. Machine Voltage: 208VAC/60Hz/3Ph Total Machine Amperage: 33 Amps Machine Weight: 770 Lbs. Shipping Weight: 885 Lbs. Exhaust Stack Size: 10" Machine Dimensions: Length=51.5", Width=25.5", Height=56" 1856SS SPECIFICATIONS Pump Volume At Pump Head: 4.8 GPM/288 GPH Pump Pressure At Pump Head: 3000 PSI Burner Type: Natural Gas Fired, 558,058 BTU/Hr. Machine Voltage: 575VAC/60Hz/3Ph Total Machine Amperage: 11 Amps Machine Weight: 770 Lbs. Shipping Weight: 885 Lbs. Exhaust Stack Size: 10" Machine Dimensions: Length=51.5", Width=25.5", Height=56"

4 CONTENTS Component Identification... 5 Assembly... 6 Installation... 7 General Safety Information...7-9 Operation...9-11 Storage... 11 Maintenance... 12 Troubleshooting...13-15 Exploded View...16-17 Exploded View Parts List...18-19 Hose & Trigger Gun Assembly and Parts List... 20 Trigger Gun Assembly and Parts List... 21 Control Panel Assembly Exploded View... 22 Control Panel Assembly Parts List... 23 Coil Outlet and Parts List... 24 Float Tank Assembly and Parts List... 25 Burner Assembly... 26 Burner Assembly Parts List... 27 Pump Assembly and Parts List... 28 Unloader VB9 Exploded View & Parts List... 29 Pump, Exploded View & Parts List...30-31 Wiring Diagram - 1PH... 32 Wiring Diagram - 3PH... 33 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. 1800 Series Manual Form #97-6244 Revised 7/06

1800 SERIES PRESSURE WASHER OPERATOR S MANUAL 5 COMPONENT IDENTIFICATION Burner Exhaust Vent Thermal Rupture Disk Burner Switch High Pressure Nozzle Pump Switch Thermostat Wand Detergent Control Nozzles Fresh Water Inlet Garden Hose (not included) High Pressure Hose Trigger Gun Float Tank Detergent Bucket (not included)

6 1800 SERIES PRESSURE WASHER OPERATOR S MANUAL ASSEMBLY 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 distributor or carrier concerning discrepancies. 1. Unbolt pressure washer from pallet. 2. Remove pressure washer from pallet. Parts Included Pressure Washer Pressure Hose Hose Hanger Wand Operating Instructions and Parts Manual Tools Required 10" Adjustable Crescent Wrenches (2 ea.) Teflon Tape Blade Screwdriver Pressure Hose, Wand and Wand Holder 1. Use teflon tape on plumbing connections to prevent leakage. 2. Install pressure hose on machine as shown in Figure 1. 3. Assemble wand components as shown in Figure 2. Connect pressure hose to trigger gun. Quick Disconnect Plug Quick Disconnect Trigger Gun Pressure Hose Wand Figure 2 - Assembling Wand Components NOTE: The nozzle is not to be installed at this time. 4. Make sure that all plumbing connections are tight. Hose Hanger 1. Install the hose hanger on the machine coil tank as shown in Figure 3. Hose Hanger Thermal Rupture Disk Pocket on Coil Tank Figure 3 - Hose Hanger Installation Pressure Hose Gas Valve 1. Install gas valve on machine as shown. (Plastic cover should point upwards). Figure 1 - Installing Pressure Hose Figure 4 - Installing Gas Valve

1800 SERIES PRESSURE WASHER OPERATOR S MANUAL 7 INSTALLATION Owner/User Responsibility 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. The pressure washer should be run on a level surface and in a protected area where it is not readily influenced by outside sources 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 coming in contact with the pressure washer. Moisture reaching the equipment will reduce the pressure washer s service life. All installations should comply with the local codes covering such installations. GENERAL SAFETY INFORMATION WarninG read operator s manual thoroughly prior to use. CAUTION: To reduce the risk of injury, read operating instructions carefully before using. 1. Read the 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. 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 keep water spray away from electrical wiring. 5. 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. 6. 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. 7. 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. 8. High pressure developed by these machines can cause personal injury or equipment damage. Use caution when oper ing. Do not direct discharge stream at people, or severe injury and/or death may result. 9. Never make adjustments on machine while in operation. 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. 10. Eye safety devices and foot protection must be worn when using this equipment.

8 1800 SERIES PRESSURE WASHER OPERATOR S MANUAL 11. When the machine is working, do not cover or place in a close space where ventilation is insufficient. 12. Do not operate with the spray gun 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. 18. 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. 20. Do not replace LP tank while machine is running. Serious injury could result. 21. The LP models are designed to run on vapor propane fuel. Do not use liquid fuel. Have a qualified serviceman install and service your equipment. 22. Never expose a spark or flame where there may be unburned gas present. 23. Some gases are heavier than air and will spill out on the floor. Therefore always provide adequate space and ventilation around these machines. Install the machine 18" above the floor. 24. Hotsy will not be liable for any changes made to our standard machines, or any components not purchased from Hotsy. 25. Do not overreach or stand on unstable support. Keep good footing and balance at all times. 26. Follow maintenance instructions specified in manual. 27. When making repairs, disconnect from electrical source and shut off gas valve. 28. Turn burner off and cool to 100 F before turning machine off. 29. Extinguish any open flame, and test all joints with a soap solution. If the odor persist, call your gas supplier immediately. 30. This machine must be attended during operation. 31. A draft hood shall be installed if this machine is going to be permanently installed and vented to the outside of the building. Venting WARNING - RISK OF EXPLOSION: Do not spray flammable liquids or operate machine in areas where flammable vapors are present. Operate only where open flame or torch is permitted. CAUTION - RISK OF ASPHYXIATION: Do not run machine indoors or in an enclosed area without the required venting, as exhaust fumes may be hazardous to your health. CAUTION: Some gases are heavier than air and will spill out on the floor in the 2 to 3 minutes required for the safety pilot valve to close off gas supply. Therefore, always provide adequate space and ventilation around these units. IMPORTANT: A draft diverter shall be installed. INSTALLER UNE HOTTE DE TIRAGE. IMPORTANT: 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 exhaust to the outside atmosphere. Exhaust gases should not be vented into a wall, a ceiling, or into a concealed space in a building. Be sure the flue is the same size as the burner exhaust vent on the pressure washer. 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 gas fired pressure washer must have a draft diverter installed in the flue. See Figure 5 for details. A draft diverter will permit proper upward flow of exhaust flue gases. Figure 5 - Down Draft Diverter Example Of Down Draft Diverter For Gas Fired Machines

1800 SERIES PRESSURE WASHER OPERATOR S MANUAL 9 Water Supply Connect water supply hose to water inlet on float tank. The water faucet and supply hose must be capable of providing a minimum of 6.0 gallons per minute (GPM). Fuel Supply CAUTION: Have a qualified gas serviceman install and service your equipment. WARNING: Gas line supply pressure must not exceed 14 water column inches (.50 PSI). IMPORTANT: Gas line must be provided with a shut off valve. IMPORTANT: The gas supply must be able to supply a minimum of 560,000 BTU/HR at the machines rated manifold pressure. Consult building codes for installation requirements. For proper and safe machine operation, we recommend that a licensed contractor be consulted for machine installation. Natural Gas Fuel Have a qualified gas serviceman install the natural gas fuel supply line to the machine. See Figure 6 for location of gas inlet. Gas Valve Inlet Port Outlet port Figure 6 - Gas Valve and Regulator Side View The ideal incoming gas pressure is 11 w.c.i. (water column inches) minimum 6 w.c.i., maximum 14 w.c.i. or 1/2 psig. The correct operating manifold pressure for natural gas is 3.5 w.c.i. The operating manifold pressure for propane gas is 11 w.c.i. The gas valve pressure regulator can be adjusted between 3 and 4 w.c.i. natural gas or 6 and 11 w.c.i.for propane. The gas pressure coming out of the regulator and going to the burner ring has been factory set. You should not readjust the burner ring gas pressure. If you replace your gas valve, you will need to adjust the new valve. Refer to your machine s specification plate for the correct pressure setting. Follow the installation and adjustment instructions provided with your replacement valve. Electrical WARNING: Make sure all switches and controls are in the OFF position prior to connecting electrical supply. WARNING: DO NOT stand in water while connecting and disconnecting electrical supply. WARNING: Always disconnect power before servicing your pressure washer. IMPORTANT: Consult local building codes for exact electrical requirements. Licensed contractors may be required. IMPORTANT: All wiring must be of proper voltage and amperage rating and conform to applicable codes. IMPORTANT: This machine must be electrically grounded. LA MACHINE DOIT ÊTRE MISE À LA TERRE. Grounding Instructions: Make sure all switches and controls are in the OFF position prior to connecting electrical supply. Do not stand in water while connecting and disconnecting electrical supply. If it should malfunction or break down, grounding provides a path of least resistance for electric current to reduce the risk of electric shock. The product must be connected to an appropriate power source that is properly installed and grounded in accordance with all local codes and ordinances. DANGER: Improper connection of the equipment grounding conductor can result in a risk of electrocution. Check with a qualified electrician or service personnel if you are in doubt as to whether the outlet is properly grounded. The 1800 Series are not provided with a power cord. These models must be connected to a grounded, metal, permanent wiring system. Refer to wire diagrams for proper incoming power connections. Extension Cords: Do not use extension cords with this equipment. WARNING: To reduce the risk of electrocution, keep all connections dry and off the ground. OPERATION 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.

10 1800 SERIES PRESSURE WASHER OPERATOR S MANUAL 2. Connect water supply hose to the standard garden hose connector. The water faucet and supply hose must be capable of providing 6.0 GPM. 3. This machine was factory built for Natural Gas. See instructions under Fuel Supply (Page 9). 4. Check pump oil level. 5. 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, start the pump by pressing the pump ON switch, and hold the wand trigger open until water appears at the end of the wand. Allow water to run from the end of the wand until clear to prevent the 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, and start the pump by pressing the pump ON switch. Hold the wand trigger open and allow water to run from the end of the wand until clear. 6. Install the pressure nozzle on end of wand, refer to Figure 7. CAUTION: Have a qualified gas serviceman install and service your equipment. DANGER: Never expose a spark or flame where there may be unburned gas present. DANGER: Some gases are heavier than air and will spill out on the floor in the 2 to 3 minutes required for the safety pilot valve to close off gas supply. Therefore, always provide adequate space and ventilation around these units. To Start WARNING: Risk of injection or severe injury - Keep clear of nozzle - DO NOT direct discharge stream at persons - 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. WARNING: Wear eye, ear, hand, foot and skin protection at all times while operating pressure washer. WARNING: Before changing pressure nozzle, engage manual trigger gun lock. Manual Trigger Lock Pressure Nozzle Figure 7 - 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 7. The trigger lock should be used whenever the trigger gun is not in use. IMPORTANT: On initial start-up or if maintenance has been performed on the burner assembly, it will be necessary to bleed the air from the gas line before the pilot will light. 7. If you are running the machine for the first time, or have performed maintenance on the burner assembly, there will be air in the gas line. To bleed the air from the gas line run the pressure washer with pump and burner switches on and thermostat on highest setting. Squeeze the trigger of the trigger gun for 15 seconds. If the burner has not ignited, release the trigger for 5 seconds, then squeeze for 15 seconds. If the burner has not ignited after 10 tries, see the Troubleshooting Guide in this manual. 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. Turn ON gas supply. 3. Hold wand firmly, release trigger of trigger gun and turn pump switch ON. Squeeze trigger of trigger gun and allow air to purge from system. 4. If HOT water is desired, adjust the thermostat to the proper temperature and turn burner switch ON. Squeeze trigger of trigger gun. The pilot will automatically light, quickly followed by the firing of the burner ring. When the trigger of the trigger gun is released or when the thermostat temperature setting is reached, the burner will automatically turn off. IMPORTANT: If ignition or flame failure is experienced, discontinue use of pressure washer at once. Turn off burner and shut off fuel supply. Have cause of failure corrected by an authorized service technician before use of pressure washer is continued.

1800 SERIES PRESSURE WASHER OPERATOR S MANUAL 11 To Clean WARNING: Risk of injection or severe injury - Keep clear of nozzle - Do not direct discharge stream at persons - 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. DETERGENT/WATER RATIO % 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% DETERGENT/WATER RATIO % DETERGENT CONCENTRATION 1/8 1/10 1/12 1/16 1/25 1/50 1/100 1.200 1/400 DRILL NO. DRILL SIZE DETERGENT CONCENTRATION 12% 10% 8% 6% 4% 2% 1%.05%.02% 80 70 60 50 40 30 20.013.028.040.070.098.128.161 DRILL NO. 80 70 60 50 40 30 20 DRILL SIZE.013.028.040.070.098.128.161 Figure 8 - Detergent Metering System 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 proceeding 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 pressure 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 pressure. 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 solvent 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 antifreeze, 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.

12 1800 SERIES 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 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. (Refer to Figure 9) 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 of operation, whichever comes first. Sight Glass (on rear of pump) Dipstick Pump Motor On a yearly basis, oil pump motor per instructions on motor nameplate. NOTE: Some motors may be equipped with permanently lubricated bearings and will not require additional lubrication. Gas Burner It is recommended that the gas burner be serviced yearly or as needed. Contact your local service center. Relief Valve WARNING: The relief 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 parts refer to Figure 26. Unloader Valve Oil Fill 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 manufacturers 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. 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 Figure 28. 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.

1800 SERIES PRESSURE WASHER OPERATOR S MANUAL 13 TROUBLESHOOTING GUIDE SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION PRESSURE WASHER WILL NOT RUN PRESSURE WASHER RUNS BUT WON T SPRAY LOW SPRAY PRESSURE AT NOZZLE UNEVEN SPRAY PATTERN PRESSURE WASHER WILL NOT PRODUCE HOT WATER WATER (CONTINUED) Pump switch in OFF position. Power supply disconnected. Fuse blown or circuit breaker tripped in electrical supply line. Motor circuit overload tripped. Trigger of trigger gun released. Water supply not turned on. Clogged pressure nozzle. Inlet water screen clogged. Pump sucking air. Inadequate water supply. Partially clogged or damaged pressure nozzle. Air being drawn through detergent inlet line. Partially clogged or damaged pressure nozzle. Burner switch in OFF position. Gas valve switch in OFF position. Inadequate fuel supply. Pump switch turned off. Place switch in ON position. Connect power supply. Replace fuse or reset circuit breaker. Use only circuits of adequate capacity. Allow sufficient time for motor to cool down. Place pump switch in ON position. Squeeze trigger. Open water supply valve. Clean pressure nozzle opening. Check screen and clean if necessary. Fill the detergent container and check for loose hose clamps or fittings. Fully open faucet. Check for kinked or damaged hose. Use 5/8" minimum hose. Check for debris clogging inlet screen. Clean or replace. Refill detergent container. Ensure that pick-up screen is fully immersed. Clean or replace. Place switch in ON position. Place switch in ON position. Check fuel supply. Pump must be running before burner will light.

14 1800 SERIES PRESSURE WASHER OPERATOR S MANUAL TROUBLESHOOTING GUIDE SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION PRESSURE WASHER WILL NOT PRODUCE HOT WATER (continued) POOR OR NO DETERGENT FLOW POOR CLEANING UNLOADER CYCLES WHEN TRIGGER GUN IS OPENED OR CLOSED BURNER SMOKES OR HAS OBNOXIOUS ODOR PRESSURE RELIEF VALVE IS LEAKING Inadequate water supply. Trigger of trigger gun released. Thermostat set too low, or defective. Manual gas valve not open. Defective gas valve. Inadequate detergent supply. Detergent screen or hose clogged. Clogged detergent injector check valve. Improper detergent concentration or mixing. Wrong detergent for the application. Detergent valve not opening. Air in system. Unloader defective. Water leak between unloader valve and trigger gun. Stack restriction. Excessive pressure due to defective unloader valve. Defective relief valve. Dirty relief valve. Fully open faucet. Check for kinked or damaged hose. Use 5/8" minimum hose. Check for debris clogging inlet screen. Squeeze trigger. Water must be spraying for burner to light. Raise thermostat setting. Replace if defective. Turn ON gas valve. Replace gas valve. Refill detergent container. Ensure that pick-up screen is fully immersed. Clean. Always start with a a clean detergent container. Clean check valve at detergent injector. Mix detergent per manufacturer's instructions. Ensure that powdered detergents are fully dissolved. Select appropriate detergent. Check that handle or knob is not slipping on shaft. Open and cloase trigger gun several times. Replace if defective. Check fittings, hose, and trigger gun for leaks. Repair or replace. See Venting under Installation. Replace unloader valve. Replace relief valve. Clean relief valve seat.

1800 SERIES PRESSURE WASHER OPERATOR S MANUAL 15 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: Release: Machine Serial Number: Component Part Number: Description: 1800 GAS-FIRED SERIES OPTIONAL EQUIPMENT 835525 Draft Diverter

16 1800 SERIES PRESSURE WASHER OPERATOR S MANUAL Exploded view 14 49 15 3 16 3 10 3 Models 1812SS, 1812SS-208, 1852SS, 1852SS-208 13 12 8 19 18 51,52,53 7 11 20 17 For Detail See Pump Assy. Illus. 6 For Detail See Control Box Illus. 9 5 21 22 23 44 25 45 50 48 24 39 48 27 28 26 2 4 For Detail See Float Tank Illus. 1 3 47

1800 SERIES PRESSURE WASHER OPERATOR S MANUAL 17 Exploded view 37 3 10 54 55 To Coil 34 33 46 31 42 32 43 41 30 29

18 1800 SERIES PRESSURE WASHER OPERATOR S MANUAL Exploded view parts List item part no. description qty 1 104900 Frame Assembly 1 2 703108 Nut, 3/8" Flange 4 3 630009 Bolt, 1/4" x 1/2" Hex 20 4 104908 Panel, 1800 Skirt 1 5 867395 Hose, 3/8" Push-On 30" 6 See Control Panel Assembly, Page 22 1 7 104907 Cover, Elec. Box 1 8 815329 Bushing, 3/4" Snap, P/N 2140 2 9 11-10480 Label, Warning 1 10 90-4000 Washer, 1/4" 33 11 914904 Label, Plate Alum, 5" x 11" 1 12 104951 Coil Weld, Gas, 22" 1 936688 Fender Washer, 5/16" 4 703107 Whiz Nut, 5/16" 4 13 824115 Clip, Insulation Retainer 4 14 104926 Top Hat Assy, 24" x 10" 1 15 268015 Insulation, 23.50D x 10.75 ID x 1/2" 1 16 104928 Ring, Insulation Retainer 1 17 268016 Insulation, 69.0 x 29.75 x 1/2" 1 18 104906 Coil Tank Assy., Page 24 1 936688 Fender Washer, 5/16" 4 703107 Whiz Nut, 5/16" 4 19 104919 Side, Cabinet Left 1 20 See Coil Outlet Assembly 21 785966 Motor 208V 1 PH (1812SS-208, 1852SS-208) 1 785108 Motor 230V 1 PH (1812SS, 1852SS) 1 784644 Motor 208V 3 PH (1822SS-208, 1862SS-208) 1 784654 Motor 230V/460V 3 PH (1822SS, 1825SS, 1862SS, 1855SS) 1 784668 Motor 575V 3 PH (1836SS, 1856SS) 1 826029 Metal Strain, 1" (All Motors) 1 22 612984 Bolt, 3/8" x 1" NC HH 4 23 780562 Washer, 3/8" SAE, Flat 8 24 Pump Slider, Please See Pump Assy., Page 28 25 703134 Nut, 1/2" Hex, NC 1 26 375584 Float Tank Assembly 1 item part no. description qty 27 780455 Washer, 1/2" Flat 1 28 613025 Bolt, 1/2" x 5" NC HH Tap 1 29 919794 Pulley, 2BK 67H (1812SS, 1812SS-208, 1822SS, 1822SS-208, 1825SS, 1836SS) 1 875446 Pulley, 2BK 80H (1852SS, 1852SS-208, 1855SS, 1852SS, 1856SS, 1862SS, 1862SS-208) 1 30 615401 Belt, BX35 (1812SS-208,1822SS, 1822SS-208, 1825SS, 1836SS,1852SS-208) 2 616006 Belt, BX32 (1812SS) 2 615400 Belt, BX37 (1862SS-208,1855SS, 1856SS, 1862SS) 2 31 919521 Pulley, 2BK40H (1812SS-208, 1812SS, 1822SS, 1822SS-208, 1852SS, 1852SS-208, 1862SS, 1862SS-208, 1855SS, 1825SS, 1856SS, 1836SS) 1 32 707284 Hose, 3/8" x 48", 2 Wire, Pressure Loop 1 33 754717 Tee, 1/2" Fem, STL, Pipe 1 34 698256 Nipple, Pipe, 1/2" x 4-1/2" 1 35 878961 Latch, Spring Flush Head 2 36 926598 Rivet, 1/8" x 1/4", POP, AL 8 37 95-07104916 Cover, Cabinet 1 38 875477 Screw, 10-32" x 1/2" SlotPan 16 39 859808 Grommet, 1-5/16" Rubber 3 40 90-20047 Nut, 10/32" ESNA 16 41 104902 Panel, Back 1 42 815182 Bushing, H x 1-3/8" 1 43 815183 Bushing, H x 25mm 1 44 See Pump Assembly - Page 28 1 45 780482 Washer, 1/2", Lock 1 46 715755 Plug, 1/2", Hex Head 1 47 185083 Washer, 10 x SAE Zinc 32 48 615841 Screw, Whiz, 1/4" x 3/4" 4

1800 SERIES PRESSURE WASHER OPERATOR S MANUAL 19 Exploded view parts List (continued) item part no. description qty 49 5-1352 Box, Electrical 1 5-1353 Lid, Electrical Box 1 6-05171 Strain Relief, 1" 1 50 645891 Service Cord, 6/3 (1812SS, 1812SS-208, 1852SS, 1852SS-208) 37" 645893 Service Cord, 8/4 (1822SS, 1822SS-208, 1862SS, 1862SS-208) 37" 825985 Service Cord,12/4 (1825SS, 1836SS, 1855SS, 1856SS) 37" 51 615841 Screw, 5/16" x 3/4" Whiz Loc 2 52 703107 Nut, 5/16" Flange, Whiz Loc 2 53 375435 Holder, Wand, Weldment 1 54 2-01088 Gasket, 1/32" x 3/4" x 25.5" Neoprene 1 55 2-01089 Gasket, 1/32" x 3/4" x 20.5" Neoprene 1 Not Shown

20 1800 SERIES PRESSURE WASHER OPERATOR S MANUAL hose & Trigger Gun Assembly & parts list 3 1 3 4 6,7,8 2 5 9 item Part No. Description Qty. 1 691867 Trigger Gun, Hotsy 1 2 915786 Nipple, 1/4" x 1/4" NPT ST Male 1 3 826169 Coupler, 1/4" Female, Brass 2 4 878917 Wand, Side Grip 1 5 4-02043450C Hose, 3/8" x 50', 2 Wire 1 6 799007 Nozzle, 7.5 Red (5.9 GPM @ 2500 PSI) 1 799003 Nozzle, 5.5 Red (4.8 GPM @ 3000 PSI) 1 item Part No. Description Qty. 7 799019 Nozzle, 7.5 Yellow (5.9 GPM @ 2500 PSI) 1 799015 Nozzle, 5.5 Yellow (4.8 GPM @ 3000 PSI) 1 8 799031 Nozzle, 7.5 White (5.9 GPM @ 2500 PSI) 1 799027 Nozzle, 5.5 White (4.8 GPM @ 3000 PSI) 1 9 826176 Coupler, 3/8" Female, Brass 1

1800 SERIES PRESSURE WASHER OPERATOR S MANUAL 21 trigger gun Assembly & parts list 1 2 3 4 5 6 7 8 9 16 10 11 10 15 12 13 14 21 22 21 18 17 23 24 item Part No. Description Qty. 1 817320 Valve Cap 1 2 Valve Cap O-Ring 1 3 Valve Seat Spring 1 4 Valve Spring 1 5 Ball 1 6 Valve Seat 1 7 Valve Seat O-Ring 1 8 812801 Valve Body 1 9 Plunger Guide Seat O-Ring 1 10 Plunger Guide Backring 2 11 Plunger Guide O-Ring 1 12 Plunger Guide 1 13 Plunger Rod 1 20 19 item Part No. Description Qty. 14 Plunger Seat 1 15 914141 Trigger Pin 1 16 860495 Left Gun Shell 1 17 735316 Phillips Screw 6 18 914142 Trigger Lock Pin 1 19 960271 Trigger 1 20 881941 Trigger Lock Lever 1 21 936460 Inlet Pipe Seat 2 22 914285 Inlet Pipe 1 23 851190 Inlet Fitting 1 24 860496 Right Gun Shell 1 Replacement Parts 877471 Trigger Gun Repair Kit

22 1800 SERIES PRESSURE WASHER OPERATOR S MANUAL control panel Assembly exploded view 14 39 9 40-41 2 32 15 10 8 31 37 11 32 16 38 12 33 Single Phase Models Only 13 17 30 36 3 42 20 19 21 18 To Pump 7 22 34 6 23 5 4 45 24 28 43 35 1 5" 29 23 44 26 25

1800 SERIES PRESSURE WASHER OPERATOR S MANUAL 23 control panel parts list item Part No. Description Qty. 1 646360 Label, Hotsy Plastic Small 1 2 646664 Label, Disconnect Power 1 3 955930 Thermostat, w/1 Meter Capillary 1 4 915390 Plate, Thermostat Plastic Cover 1 5 835150 Knob, Thermostat 1 6 784227 Hour Meter, 24V 1 7 875985 Switch Rocker, 10A/250V-15A/ 125V, 24VLT 2 8 7-701510 Ignition, Electronic Control 1 9 6-602013 Transformer, 240V/460V-24V,.100KVA (All Models Except 1836SS & 1856SS) 1 6-60212 Transformer, 575V-24V (1836SS-1856SS) 1 10 876320 Timer, Multi-Function, 24V-120/240V 1 11 876096 Contactor (1812SS, 1812SS-208, 1852SS, 1852SS-208) 1 876203 Contactor (1822SS-208, 1862SS-208) 1 876200 Contactor (1822SS, 1862SS) 1 6-40090 Contactor (1825SS, 1855SS) 1 876204 Contactor (1836SS, 1856SS) 1 12 876097 Overload (1812SS, 1812SS-208, 1852SS, 1852SS-208) 1 876087 Overload (1822SS-208, 1862SS-208) 1 876085 Overload (1822SS, 1862SS) 1 876084 Overload, (1825SS, 1836SS, 1855SS, 1856SS) 1 item Part No. Description Qty. 13 345164 Rail, Fab, DIN 4.19" 1 14 104907 Cover, Electrical Box 1 15 90-29980 Screw, #8 x 1/2" Phillips 2 16 875648 Relay, 24V, DPST NO 1 17 860209 Timer, Delay, 60 Sec, 24V-5A 1 18 703107 Nut, Whiz Loc, 5/16" Flange 8 19 890871 Terminal Block, 14 Pole, #6SC 1 20 120618 Grounding Lug 1 21 104925 Standoff, Electrical Box 1 22 921438 Valve, Metering, 1/4" Hose 1 23 823988 Clamp, Hose, UNI.46-.54 ST 4 24 961534 Hose, 1/4" x 1/2", Braided Vinyl 25 935160 Filter Screen 1 26 322727 Plug, 1/8" (#60 Drill) 1 27 309289 Nipple, 1/4" x 1/4" Hose 1 28 104901 Control Panel 1 29 6-051700 Strain Relief, 1" 2 30 799484 Nut, 10/32", Keps 4 31 876025 Screw, 10/32" x 1/2" 4 8 ft. 32 875675 Screw, 8/32" x 1/2" 10 33 875659 Screw, 8/32" x 1-1/4" 1 34 961534 Braided Vinyl (20") 1 35 876029 Strain Relief 4 36 703127 Locknut 4 37 735323 Screw, 10/32" x 3/4" (1 PH Models) 4 38 799484 Nut, 10/32", Keps (1PH Models) 4 39 910105 Pipe, Hanger, 1-1/2" (1 PH Models) 4 40 6-02295 Fuse, KTK-R-1/2, 600V (1836SS, 1856SS) 2 6-02299 Fuse, KTK-R-1/2 Midget, (All Models Except 1836SS, 1856SS) 2 41 6-02403 Fuse, FNM 6.25 1 42 2-01088 Gasket, 1/32" x 3/4" x 25.5" Neoprene 1 43 2-01089 Gasket, 1/32" x 3/4" x 20.5" Neoprene 1 44 2-300883 Nipple, Hose, 1/4" NPT x 1/4" Barb, Tap 1 45 11-0489 Label, Control Panel, 1800 1

24 1800 SERIES PRESSURE WASHER OPERATOR S MANUAL coil outlet Assembly Exploded View & parts list 5 4 1 4 7 8 10 3 9 6 item Part No. Description Qty. 1 2-10999 Manifold 1 2 90-1981 Screw, Pan Head, 4mm x 4mm 1 3 2-3409 Rupture Disk 1 4 2-1019 Elbow, 3/8", Female, Brass 1 5 799407 Nipple, Pipe, 1/2" x 2-3/4", 3500 WP 1 6 2-00494 Plug, 1/2" Allen Countersunk 1 7 2-00681 Bushing, 1/2" x 3/8", Steel 1 8 2-2007 Nipple, 3/8" x 3/8" NPT ST Male 1 9 2-10862 Hosebarb, 3/8" Barb x 3/8" ML Pipe 1 10 10-090040 Label, Hot Water Outlet 1 Not Shown

1800 SERIES PRESSURE WASHER OPERATOR S MANUAL 25 float tank Assembly Exploded View & parts list 8 7 9 12 Line To Pump 4 5 6 3 2 13 1 10 11 item Part No. Description Qty. 1 801139 Swivel, 1/2" MP x 3/4" GHF w/strainer 1 2 722740 Bushing, Reducer 3/4" x 1/2" Brass 1 3 952721 Tank, Float 1 4 728782 Hose, 3/4", Push-On 14.5" 5 220895 Baffle 1 6 936329 Seal, Open, 3/4" x 1" 2 item Part No. Description Qty. 7 971421 Valve, 3/4" Brass Float 1 8 2-1112 Rod, Thread, 1/4" x 10" 1 9 807169 Ball, 4.00 Dia PLST Float 1 10 935168 Strainer, 1/2" Basket 1 11 799413 Push-On, 3/4" x 1/2" Male 1 12 698034 Push-On, 3/4" x 3/4" 1 13 948442 Strapping, STL, 3/4" x.023 11.5 ft

26 1800 SERIES PRESSURE WASHER OPERATOR S MANUAL burner Assembly Exploded View 8 4 18 28 9 26 14 20 19 31 To Coil 29 7 27 9 24 25 13 14 21 6 22 15 37 38 36 32 34 35 1 39 17 33 16 5 30 3 10 40 To Pump 2 6 23 12 41 41 11 40

1800 SERIES PRESSURE WASHER OPERATOR S MANUAL 27 burner Assembly Exploded View parts list item Part No. Description Qty. 1 961464 Tubing, Aluminum, 1/4" 24" 2 954712 Tee, 3/4", Black Pipe 1 3 898353 Nipple, 3/4" x 3-1/2", Black Pipe 1 4 7-702371 Pilot, Natural Gas Pilot 1 5 754717 Tee, 1/2" Fem, STL, Pipe 1 6 898352 Nipple, 3/4" x 3", Black Pipe 1 7 815346 Burner Ring, X44 w/jets, #50 1 7-7011407 Burner Ring, X44 w/jets, #63 (LP Option) 1 8 11-01002 Label, Natural Gas 1 11-01001 LP Gas/Fuel warning (LP Option) 1 9 613002 U-Bolt, 1/4" x 1-1/4" x 2-1/4" 2 10 898361 Nipple, 3/4" x 6", Black Pipe 1 11 817364 Cap, 3/4", Black Pipe 1 12 844627 Elbow, 3/4", Black, 90 1 13 104905 Support, Burner Assembly 1 14 703107 Nut, 5/16", Whiz Loc, Flange 4 15 2-1116 Elbow, 1/4" Tube x 1/8" MPT 1 16 844778 Elbow, 1/4" Street 1 17 2-3006 Valve, Ball 1/4" F x 1/4" F 1 18 898989 Bracket, Pilot Light 1 19 7-70003 Valve, Gas 1 7-700022 Valve, Gas, 1" LP (LP Option) 1 20 844762 Elbow, 1", Street, Black, 90 1 item Part No. Description Qty. 21 615853 Bushing, 1" x 3/4", Black Steel, Hex 1 22 967669 Union, 3/4", Black Pipe 1 23 2-00168 Nipple, 3/4" x 7-1/2", Black Pipe 1 24 780452 Washer, 5/16", Flat, SAE 5 25 612975 Bolt, 5/16" x 1-1/2" 1 26 90-199940 Bolt, 10/32" x 1/4", Roloc 2 27 898990 Grommet, 1-5/16", Rubber 1 28 612945 Bolt, 1/4" x 1/2", NC HH 1 29 698256 Nipple, 1/2" x 4-1/2" Pipe, 3000 WP 1 30 715755 Plug, 1/2", Hex Head 1 31 6-01353 Cable, Ignition, 60" 1 32 2-1055 Nipple, 1/4" Pipe x 1/8" Pipe 1 33 2-1003 Nipple, 1/4" Hex 1 34 2-990581 Solenoid, Pilot Valve 1 35 7-7012 Valve, 1" 1 36 2-00172 Nipple, 1" Close 1 37 72046 Bushing, 1/4" x 1/8" Pipe 1 38 722808 Tee, 1/4" Street 1 39 847750 Conduit, Wire Cover, 8" 2 40 6-04071 Plug Housing 2 6-051205 Fem Socket 4 41 6-04072 Cap Housing 2 6-051206 Male Socket 4

28 1800 SERIES PRESSURE WASHER OPERATOR S MANUAL pump Assembly & parts list 3 24 9 7 8 To Coil 10 7 5 2 12 11 23 13 19 5 20 17 21 6 18 23 1 22 15 To Float Tank 4 16 14 item Part No. Description Qty. 1 698023 Hose Barb, 1/4" Barb x 3/8" MP 1 2 890767 Tube, Shrink 3" 3 707284 Pressure Loop, 3/8" x 48" 1 4 375584 Pump, Slider 1 5 661354 Elbow 1/2" JIC x 3/8", 90 2 6 875651 Switch, Pressure 1 7 877456 Swivel, 1/2" JIC Fem, Push-On 2 8 867372 Hose, 1/2" Push-On 10.5" 9 2-0028 Elbow, 1/2" Fem, STL, 90 1 10 921580 Unloader, XSM 3500 PSI 1 11 954718 Tee, 3/8" Street 1 12 875707 Switch, Snap, 140 F 1 item Part No. Description Qty. 13 722826 2-00270 Elbow, 3/8" Male 1 14 726318 1-99364400 Bolt 4 15 877457 2-30053 Valve, 3/4" Brass, Swing Check 1 16 726258 1-96710600 Lock Washers 4 17 877455 2-1059 Nipple, 3/4" Pipe x 1/2" Pipe 1 18 823911 2-9000 Clamp, Screw #4 1 19 722739 2-1080 Bushing, 3/4" x 3/8", Pipe 1 20 954713 2-1033 Tee, 3/4" Female, Pipe 1 21 801076 2-1009 Nipple, 3/4" Hex 1 22 722751 2-1077 Bushing, 1/2" x 3/8" 1 23 830125 5-1861 Pump, H650HR 1 24 2-0052 2-0052 Nipple, 1/2" JIC x 1/2" STL 1

1800 SERIES PRESSURE WASHER OPERATOR S MANUAL 29 5-3228 VB9 Unloader ITEM Part # description qty 1 29.0087.51 Sst Clip 1 2 29.0089.84 Plastic Housing 1 3 16.3020.00 2.5 x 12 mm Screw 2 4 29.0088.84 Cover 1 5 10.3206.01* O-Ring, 2.62 x 28.25mm 1 6 12.5006.00 El. Cable and Microswitch 1 7 29.0109.84 Red Nut (25 Bar) 1 8 10.3169.00* O-Ring, 2.62 x 6.02 mm 1 9 10.3038.00* O-Ring, 1.78 x 3.68 mm 1 10 14.3519.00 Washer, 4 x 8 mm 1 11 60.2303.51 Spring 1 12 29.0086.31 Washer, 4 x 16 mm 1 13 60.2351.31 Pin 1 14 60.2353.31 Seat Fitting 1 15 10.3165.00* O-Ring, 2.62 x 2.84 1 16 10.4018.00* Back Ring, 3.2 x 7.5 mm 1 17 30.4115.31 M 10 Plug 1 18 60.2352.51 Sst Pin 1 19 10.3073.00* O-Ring, 1.78 x 23.52 mm 1 20 10.3072.50* O-Ring, 1.78 x 21.95 mm 1 21 10.3070.02* O-Ring, 1.78 x 18.77 mm 2 22 60.0733.35 Manifold 1 23 11.4540.00 Sst M6 Nut 1 24 60.2221.20* VB8/9 Seat and Shutter 1 25 10.3001.01* O-Ring, 1 x 4 mm 1 26 10.3066.01 O-Ring, 1.78 x 15.6 mm 1 ITEM Part # description qty 27 60.2210.31 Spacer 1 28 60.2202.51 VB 9 Piston 1 29 10.3170.08 O-Ring, 2.62 x 7.6 mm 1 30 10.4021.00 Back Ring, 11.4 x 15.9 mm 2 31 10.3175.00 O-Ring, 2.62 x 10.77mm 1 32 28.0013.31 Brass, 1/4 Bsp Plug 1 33 14.3911.00 1/4 Copper Washer 1 34 60.2201.35 VB9 Brass Body 1 35 15.1021.00 Pin 3 x 14 mm 1 36 10.3213.00 O-Ring 3 x 6 mm 1 37 60.0052.31 Check Valve 1 38 60.0053.51 Spring 1 39 60.0058.31 3/8 Bsp F Outlet Fitting 1 40 60.2203.61 4.2 mm Spring 1 41 60.2207.31 M8 Nut 1 42 60.2208.84 Spring Washer 1 43 16.2105.00 M5 x 6 mm Dowel 1 44 60.2252.31 Spring Nut 1 45 60.2253.31 Adjustment Nipple 1 46 11.4589.10 M8 Nut 1 47 16.1838.00 M4 Tc Screw 1 48 60.2251.84 Plastic Knob 1 49 14.3582.00 Washer, D 30 mm 1 50 60.2254.31 M30 Nut 1 51 29.0096.24 PR 5 pl. Housing Kit 1 *KIT 60.2355.24 VB9.01+PR5 Spare Parts Kit 14x1 pcs

30 1800 SERIES PRESSURE WASHER OPERATOR S MANUAL Pump Exploded View 23 22 21 20 12 13 16 25 26 27 28 29 24 16 31 26 28 32 30 33 34 35 36 37 38 39 40 9 30 41 52 40 48 42 49 5 50 47 46 45 44 7 7 6 8 6 4 3 2 1 23 15 14 12 11 10 9 28 27 26 51 25 16 24 43 24 15 14 19 18 17 16

1800 SERIES PRESSURE WASHER OPERATOR S MANUAL 31 Pump Exploded View Parts List Ref. No. Part No. Description Qty. 1 827321 Crankcase 1 2 860360 Plunger Guide 3 3 Plunger Seal 3 4 Pressure Ring O-Ring 3 5 Pressure Ring 25 mm 3 6 V-Sleeve 25 mm 6 7 Support Ring 25 mm 6 8 Intermediate Ring 25 mm 3 9 915634 Plug 1/2" 1 10 936932 Copper Washer 1/2" 1 11 884470 Manifold Housing 1 12 Valve Seat O-Ring 6 13 918390 Shaft Protector 1 14 Manifold Plug O-Ring 6 15 915631 Manifold Plug 6 16 780560 Washer 16 17 612692 Manifold Stud Bolt 8 18 780565 Copper Washer 3/8" 1 19 915630 Plug 3/8" 2 20 Valve Seat 6 21 Valve Plate 6 22 Valve Spring 6 23 Valve Cage 6 24 735314 Hex Screw 8 25 867750 Bearing Housing 2(1) 26 926649 Bearing Housing O-Ring 2 27 926651 Crankshaft Seal 2(1) 28 808401 Roller Bearing 2 29 N/A Double-Ended Crankshaft N/A Ref. No. Part No. Description Qty. 30 877399 Crankshaft Key 8 x 7 x 25 mm 1 31 707413 Closed Bearing Housing 1 32 630930 Single-Ended Crankshaft 1 33 926691 Connecting Rod Pin Snap Ring 6 34 914138 Connecting Rod Pin 3 35 928640 Connecting Rod Assembly 3 36 936933 Spring Washer 6 37 735311 Allen Screw 6 38 735313 Crankcase Cover Allen Screw 6 39 858430 Sight Glass 1/2" 1 40 855892 Gasket 1/2" 2 41 855893 Gasket 3/8" 1 42 826680 Crankcase Cover 1 43 855890 Crankcase Cover Gasket 1 44 829931 Plunger Rod 3 45 Copper Spacer 3 46 Plunger Sleeve 25 mm 3 47 Teflon Ring 3 48 Plunger Rod O-Ring 3 49 Copper Spacer 3 50 Plunger Assembly Bolt 3 51 944784 Shim 2 52 835280 Oil Dipstick 1 Replacement Parts 877650 Seal Packing Kit 1 877647 Complete Seal Packing Kit 3 877648 Valve Assembly Kit 6 877652 Ceramic Sleeve Kit 3 877653 Plunger Rod Seal Kit 1