M15781120F.3 ITEM NUMBER: 15781120, 15775440, 15781720, 15781820 SERIAL NUMBER: _____________ Owner’s Manual Pressure Washer: Machine that cleans dirty surfaces with high pressure water. Instructions for Installation/Set-up, Operation, Maintenance, & Storage This pressure washer produces cold water high pressure spray. Cleaning chemicals may be incorporated into the spray if desired. The pressure pump for this equipment is powered by a gasoline internal combustion engine.
Table of Contents Equipment Protection Quick Facts ........................................................................................................................................ 1 TABLE OF CONTENTS ................................................................................................................................................ 2 ABOUT YOUR PRESSURE WASHER .........................................................................................................................
Clean Inlet Filter .................................................................................................................................................................. 25 Check Tire Pressure ........................................................................................................................................................... 25 Change Pump Oil ....................................................................................................................................
About Your Pressure Washer Thank you for purchasing a NorthStar Pressure Washer! It is designed for long life, dependability, and top performance. Site Location. Intended for outdoor use only. Personal Protection. Wear safety apparel during operation, including safety glasses with side and top protection. Ear protection is also recommended if working near any operating engine. Other safety apparel includes waterproof insulated gloves, and non-slip protective footwear.
Specifications 15781120 15775440 FLOW OUTPUT FLOW OUTPUT PSI (bar) 3000 (207) PSI (bar) 2.5 (9.4) 140° F (60°C) GPM (I/min) Max Water Temp 3000(207) Max Water Temp ENGINE Engine Horsepower 2.5 (9.4) 140°F (60°C) GPM (I/min) ENGINE Honda GX 160 160 cc Engine Horsepower DIMENSIONS/COMPONENTS Honda GC 190 190 cc DIMENSIONS/COMPONENTS Length 34″ Length 34″ Width 21″ Width 21″ Height 38″ Height 38″ Pump Model Comet AXD Pump Model Comet AXD 4.3 oz Pump Oil Capacity 4.
Component Identification 1. 2. 3. 4. 5. Handle: Designed for easy cart movement. Gun Hook: Store spray gun on hook. Pressure Hose: Attach quick couplers to gun and water outlet. Chemical Hose: Submerge in cleaning solution. Water Pump: Inspect for loose/broken parts prior to each use. A device that moves fluid through a combination of suction and displacement. 6. Engine: Honda engine provides years of reliable use. Air cooled engine that powers the pump. 7. Hose Hook: Store hose on hook.
Safety Hazard Signal Word Definitions This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. DANGER (red) indicates a hazardous situation, which if not avoided, will result in death or serious injury. DANGER WARNING (orange) indicates a hazardous situation, which if not avoided, could result in death or serious injury.
Safety Labeling Safety Decal Locations WARNING: ALWAYS make sure safety labels are in place and in good condition. If a safety label is missing or not legible, order new labels from NorthStar Product Support at 1-800-270-0810.
Safety Decals To order replacement safety labels, call NorthStar Product Support at 1-800-270-0810.
Initial Set-Up Step 1. Inspect & Unpack Upon receiving your item check for missing or damaged parts. See “Component Identification” section of this manual for a diagram of the pressure washer and its components. • For missing or damaged components, contact Product Support at 1-800-270-0810. • If complete, fill out product serial number information. See “Limited Warranty” section of this manual.
Hardware Bag NOZZLES QTY 5 (Model# 15781120, 15775440, 15781720) PART# 38531 (Model# 15781820) PART# 38532 NOZZLE HOLDER QTY 1 PART# 788696 VENTED FILL CAP QTY 1 PART# CO3200013800 MODEL# 15781120, 15775440 NYLOCK NUT QTY 2 PART# 777495 CARRIAGE BOLT QTY 2 PART# 82233 HOSE HOOK *QTY 1 PART# 779761 *MODEL 15775440 (QTY 1) T-HANDLE KNOBS QTY 2 PART# 38578 11
Step 2. Assembly Step 3. Select Suitable Location Note: Remove contents from packaging to begin assembly. Moving and Handling Moving your pressure washer around • Use the handles to manually move the pressure washer. • Push the pressure washer in front of you has you walk. • To turn, push down slightly on the handles and pivot the pressure washer on its wheels. Handle Assembly 1.) Attach handle to base using: a. (2) Carriage Bolts (82233) b. (2) T-Handle Knobs (38578) 2.
inside RVs or other vehicles, on boats, or on pick-up truck beds. 1. The exhaust gas from your pressure washer is extremely hot and can cause combustible materials to catch on fire. 2. Make sure the engine is at least 7 feet from all combustible materials and structures during operation. 3. Keep a fire extinguisher rated "ABC" nearby. Keep it properly charged and be familiar with its use. 4. Place the unit so that the exhaust fumes will not be directed towards people or building air intakes. 7.
Operation Follow Safety Rules for Operation set-up and operation. Do not allow anyone to operate the pressure washer who has not read the Owner's Manual and been instructed on its safe use. Adult control only. Only trained adults should set up and operate the pressure washer. Do not let children operate. Pressure washers can generate forces greater than children can control and require judgment beyond what can be expected of children. Under the influence.
Preparing for Operation Never pull by hose. Do not move this machine by pulling on the hose. Hose or connections could fail and result in catastrophic high pressure release of fluid as well as hose whipping. Avoid sharp objects. Keep hose away from sharp objects. Bursting hoses may cause injury. No load bearing. Do not use the pump to support other items of equipment that impose unacceptable loads on the pump. Do not attempt to use this machine as a prop. Lock trigger safety latch when not spraying.
Always follow these general safety rules when fueling: 1) Turn pressure washer off and allow to cool for at least two minutes before removing any fuel cap. Note: A running or still-hot engine is hot enough to ignite fuel. - Do NOT overfill the gasoline tank. Allow at least 1/2" of empty space below the fill neck to allow for fuel expansion. 3) Replace gas cap securely before starting engine. 4) Store extra gasoline in a cool, dry place in a UL approved tightly sealed container.
3.) The water supply garden hose must have an inside diameter of at least 5/8”. If the hose is more than 100 ft. long, the diameter must be at least 3/4”. 4.) Never use a reservoir tank as a water source. Drawing water out of a tank may cause pump cavitation and damage to your pump. This pressure washer is designed for a pressurized water source such as a city water faucet. However, the water source pressure must not exceed 115 psi (8 bar). 5.) Always use a flexible rubber hose for your water supply.
Select Nozzle for Spray Gun 3. Release the collar, making sure it springs back and re-seats to its original (non-retracted) position. Check the connection by pulling on the nozzle to ensure a tight connection -- if correctly inserted, nozzle will rotate but not pull out. Your pressure washer is equipped with four highpressure nozzles and one low-pressure nozzle. Generally, the wider the spray angle of the nozzle, the lower the spray impact produced.
Set Up for Chemical Spray (if desired) Prepare for Chemical Spray (if planning to use) Acquire Cleaning Chemical Use only approved pressure washer chemicals or chemicals specifically formulated for use with pressure washers. CAUTION: Non-approved Chemicals Using the proper cleaning chemical for the application can speed up cleaning jobs tremendously. Non-approved chemicals can damage pressure washer components (seals, wand, hoses, pump, etc.) and be harmful to the environment.
Begin High Pressure Spray Start-Up Procedures Start the Engine to Power the Pump. WARNING: High Pressure Spraying Safety 1. Make sure water supply is connected and primed. • Keep spray away from people. Never direct discharge stream at or near any person. Do not allow any part of the body to come in contact with the fluid stream. High-pressure spray can cause serious skin, eye, or falling injuries. Injection injury will occur if high-pressure spray pierces the skin, injecting liquid under the skin.
4. Wash from the bottom to the top, using side-toside motions. This washes away heavy dirt and allows the detergent to soak as you work toward the top. 5. Use the width of the spray pattern to wash a wide path. Overlap spray paths for complete coverage. 6. The nozzle should be 12" to 24" from the work, closer for tough areas. 7. Small parts should be washed in a basket so the pressure does not push them away. Larger, lightweight parts should be clamped down. 8.
Storage When you are finished using the pressure washer, you must prepare the sprayer for storage and store it in a proper location. 1. Drain the water from the high pressure hose and spray gun by depressing the trigger on the spray gun until all water drains out. 2. Disconnect the plumbing that connects to the pump outlet. 3. Obtain the materials you will need: • 12" piece of garden hose or equivalent • funnel • approximately 6 oz. of RV antifreeze. 4.
• Add fuel stabilizer to the gasoline (following manufacturer's instructions) Fuel stabilizer steps: a. Ensure gas tank is full. b. Add fuel stabilizer to fuel tank. c. Run pressure washer with high pressure hose at least 5 minutes after adding stabilizer to allow it to enter the fuel system. d. Shut off engine 2. Lubricate cylinder and piston: a. Disconnect spark plug wire and remove spark plug b. Add one teaspoon oil through spark plug hole c.
Maintenance & Repair WARNING: Maintenance Hazards ALWAYS shut off water supply, bleed water pressure, turn off engine and disconnect the spark plug wire before cleaning, adjusting, or servicing the pressure washer. After servicing, make sure all guards and cover shields are replaced before using.
WARNING: High Pressure Fluid Injection Hazard High pressure fluid discharge from leaks (even pin-sized) or ruptured components can pierce skin and inject fluid into the body. Injection injury can result in blood poisoning and/or severe tissue damage leading to infection, gangrene, and possibly amputation. • • • 1) 2) Never use a finger or skin to check for leaks. Never operate machine with damaged or missing hoses/parts.
Change Pump Oil IMPORTANT: Replacement Parts If a part needs replacement, only use parts that meet the manufacturer's part number specifications. Replacement parts that do not meet specifications may result in a safety hazard or poor operation of the pressure washer. Change the pump oil after the first 50 hours of use, and then after every 3 months or 500 hours of use after that. 1. Remove drain plug from pump. 2. Drain pump oil into suitable container and dispose of responsibly. 3.
Troubleshooting This section provides a list of the more frequently encountered pressure washer malfunctions, their causes and corrective actions. Some corrective actions can be performed by the operator or maintenance personnel, and others may require assistance of a qualified Service Center.
Parts Explosion- Model #15781120, 15775440, 15781720, 15781820-Rev F.
Parts List - Model #15781120, 15775440, 15781720, 15781820 - Rev F.
Pump Assemblies Ref# 29 30 Part# 777915 777913 4027 38596 777340 777834 Description Quick Connect Outlet Plug, F Quick Connect Outlet Plug, M Inlet Filter Washer 3/8” Inlet Filter ¼” x ¼” Hose Barb Fitting ¼” Hose Clamp 31 777165 ¼” PVC Hose (sold by foot) 32 33 34 35 44 38584 777347 35918 22393 777410 Easy Start Valve 3/8” Street Tee Thermal Valve Pop Off Valve 3/8 Street elbow 27 28 30 Qty 1 1 1 1 2 1 ft 1ft 2 in.
Pump Exploded View – AXD2530G GH F.
Pump Exploded View – AXD2530G GH F.
Pump Exploded View – 4DNX Ref# 5 8 10 11 15 20 24 25 27 32 33 37 38 48 49 53 64 65 70 90 98 99 100 P/N Not Available CA547153 CA14041 CA55337 CA14488 CA547048 Not Available CA549446 CA56084 CA547961 CA14179 CA92241 CA44428 CA44842 CA14179 Not Available CA46229 CA542402 CA47215 CA547091 CA46730 CA542405 CA46233 DESCRIPTION Screw Bearing Cover O-Ring, Bearing Cover Oil Seal Inner Ball Bearing Connecting Rod Oil Plug Cap Crankshaft Ball Bearing Cap O-ring for Oil Filter Cap Gauge, Bubble Oil w/Gasket Gasket
Pump Exploded View – 4SPX 34
Ref# 5 8 10 11 15 20 24 25 26 27 32 33 37 38 48 49 53 64 65 69 70 90 98 99 100 106 P/N Not Available CA547084 CA14041 CA125351 Not Available CA547020 Not Available Not Available Not Available CA15710 CA547961 CA14179 CA92241 CA44428 CA44842 CA14179 Not Available CA16948 CA548872 CA126259 CA25301 CA547091 CA46730 CA542405 CA44869 CA45188 120 DESCRIPTION Screw Bearing Cover O-Ring, Bearing Cover Oil Seal Inner Ball Bearing Connecting Rod Oil Plug Cap Crankshaft Ring, Retaining Ball Bearing Cap O-ring, 70D
Limited Warranty Dear Valued Customer: The NorthStar Product you just purchased is built with the finest material and craftsmanship. Use this product properly and enjoy the benefits from its high performance. By purchasing a NorthStar product, you show a desire for quality and durability. Like all mechanical equipment this unit requires a due amount of care. Treat this unit like the high quality piece of machinery it is. Neglect and improper handling may impair its performance.
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California Proposition 65 Information WARNING: This product can expose you to chemicals including gasoline engine exhaust, which is known to the State of California to cause cancer, and carbon monoxide, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. Assembled by Northern Tool & Equipment Company, Inc. Burnsville, MN 55306 NorthernTool.
