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Pressure Washer:
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.
WARNING: SPECIAL HAZARDS
CO Poisoning: Exhaust from engine contains carbon monoxide, a poisonous gas that can cause carbon monoxide
poisoning and possible death if inhaled. ONLY run pressure washer OUTDOORS and at least 20 feet from the home, away
from windows, vents and air intakes, to allow proper ventilation. If you start to feel sick, dizzy, or weak while using the
pressure washer, shut off the engine and get to fresh air RIGHT AWAY.
Injection Injury: High-pressure spray can pierce skin and underlying tissues, leading to serious injury and possible
amputation. Such an injection injury can result in blood poisoning and/or severe tissue damage.
Flying Debris: High-pressure spray can cause flying debris and possible surface damage.
Electric shock: Operating equipment in wet conditions or near water can cause electric shock.
Chemical Exposure: Cleaning chemical vapors or contact with skin may be hazardous.
Fire/Explosion: Engine sparking can ignite fuel or other flammable liquids or vapors in the vicinity. Hot exhaust from engine
can ignite combustible materials.
Burns: Pressure Washer pump and engine are hot surfaces that can cause burn injuries.
Detailed safety information about these hazards appears throughout this manual.
Inspect Upon Delivery: FIRST! Inspect for missing or damaged components. See "Initial Set-Up" section for where
to report missing or damaged parts.
Add Engine Oil: Engine is shipped without oil. See engine manual for instructions on capacity and viscosity
recommendations.
Pump: Pump is shipped with oil: Check pump oil level before starting.
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Remove shipping tape and black vent plug (if present) from pump oil fill cap (CAT Pumps).
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Remove shipping plug and install vented fill cap (Comet Pumps).
Water Flow Requirements: Make sure your supply water flow rate is 20% higher than the pressure washer's flow
rate (see "Operations", section for detail), and that your water is clean and particle free.
Chemical Spraying: Use only approved pressure washer chemicals designed for high-pressure use.
Storage: Do not allow water to freeze in the pump, hose, or spray gun(s). See "Storage" for more information.
Maintenance Schedule: Engine and pump require periodic inspection and servicing to keep pressure washer
functioning efficiently. See "Maintenance Schedule Summary" for frequency of servicing.
Any Questions, Comments, Problems, or Parts Orders
Owner's Manual
with high pressure water.
Equipment Protection Quick Facts
Call NorthStar Product Support 1-800-270-0810
M15781520C.3
ITEM NUMBER: 15781520, 15782020
SERIAL NUMBER: _____________
Machine that cleans dirty surfaces
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Table of Contents
Related Manuals for North Star 15781520
Summary of Contents for North Star 15781520
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Page 1: Equipment Protection Quick Facts
M15781520C.3 ITEM NUMBER: 15781520, 15782020 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. -
Page 2: Table Of Contents
Table of Contents Equipment Protection Quick Facts ............................1 TABLE OF CONTENTS ..............................2 ABOUT YOUR PRESSURE WASHER ......................... 4 SPECIFICATIONS ................................ 5 COMPONENT IDENTIFICATION ..........................6 SAFETY ..................................7 Hazard Signal Word Definitions ............................7 SAFETY LABELING ..............................8 Safety Decal Locations ................................. - Page 3 Perform Engine Maintenance .............................. 26 Change Pump Oil ................................26 TROUBLESHOOTING ..............................27 PARTS EXPLOSION- MODEL # 15781520, 15782020- REV C.3 ................28 PARTS LIST- MODEL #15781520 & 15782020- REV C.3 ..................29 PUMP ASSEMBLIES ..............................30 PUMP ASSEMBLIES PARTS LIST ..........................31 PUMP EXPLODED VIEW- COMET AWD (MODEL 15781520) ..................
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Page 4: About Your Pressure Washer
About Your Pressure Washer Thank you for purchasing a NorthStar Pressure Washer! Site Location. Intended for outdoor use only. It is designed for long life, dependability, and top Personal Protection. Wear safety apparel during performance. operation, including safety glasses with side and top Intended Use. -
Page 5: Specifications
Specifications 15781520 15782020 FLOW OUTPUT FLOW OUTPUT PSI (bar) 4000 (275) PSI (bar) 4000 (275) 3.5 (13.2) 3.5 (13.2) GPM (I/min) GPM (I/min) 140° F (60°C) 140° F (60°C) Max Water Temp Max Water Temp ENGINE ENGINE Engine Honda GX 390... -
Page 6: Component Identification
Component Identification 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. -
Page 7: Safety
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 DANGER not avoided, will result in death or serious injury. -
Page 8: Safety Labeling
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. On-Product Warning Labels Location Part numbers Description Poisonous Gas Decal... - Page 9 Safety Decals To order replacement safety labels, call NorthStar Product Support at 1-800-270-0810.
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Page 10: Initial Set-Up
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. ... - Page 11 Hardware Bag NOZZLES QTY 5 (Model# 15781520) PART# 25450 (Model# 15782020) PART# 38532 NOZZLE HOLDER QTY 1 PART# 788696 VENTED FILL CAP QTY 1 MODEL# 15781520 NYLOCK NUT CARRIAGE BOLT QTY 2 QTY 2 PART# 777495 PART# 82233 HOSE HOOK...
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Page 12: Step 2. Assembly
Step 2. Assembly Step 3. Select Suitable Location Note: Remove contents from packaging to begin Moving and Handling assembly. Moving your pressure washer around Handle Assembly Use the handles to manually move the pressure 1.) Attach handle to base using: washer. -
Page 13: Install Spark Arrestor (If Required)
applications. Never run the pressure washer 1. The exhaust gas from your pressure washer is inside RVs or other vehicles, on boats, or on extremely hot and can cause combustible pick-up truck beds. materials to catch on fire. 2. Make sure the engine is at least 7 feet from all combustible materials and structures during WARNING: Location hazards operation. -
Page 14: Operation
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 After you have checked and fueled the equipment Manual and been instructed on its safe use. and positioned it in a suitable worksite, it is time to Adult control only. -
Page 15: Preparing For Operation
Leaving unattended. Always turn off the pressure U.T.T.O (Universal Tractor washer and relieve system pressure before leaving the Transmission Oil) Comet AWD 15781520 sprayer unattended. part # COCP2101 or Mobil 1 Synthetic Oil 15W50 Prompt Emergency Response SAE 30 Non- Detergent Oil or... -
Page 16: Inspect Fuel System/Check For Leaks
Always follow these general safety rules when - Do NOT overfill the gasoline tank. Allow at least fueling: 1/2" of empty space below the fill neck to allow for 1) Turn pressure washer off and allow to cool for at fuel expansion. -
Page 17: Connect Hoses, Water Supply, And Spray Nozzle
5-gallon bucket with your garden hose. The bucket must fill faster than the times listed in the table below. Model Time to fill 5 gallon bucket 15781520 72 seconds 15782020 72 seconds Collar Seated... -
Page 18: Prime The 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. Your pressure washer is equipped with four high- Check the connection by pulling on the nozzle to pressure nozzles and one low-pressure nozzle. ensure a tight connection -- if correctly inserted, Generally, the wider the spray angle of the nozzle, the nozzle will rotate but not pull out. -
Page 19: Set Up For Chemical Spray (If Desired)
It mixes the cleaning chemical into a low pressure spray. Cleaning chemicals applied under low Model# pressure adhere better to the surface being 15781520 Chemical Injector cleaned, allowing the formula time to react and remove dirt more effectively. Note: An external upstream chemical injector is not ... -
Page 20: Start-Up Procedures
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 CAUTION: Warranty Void discharge stream at or near any person. Do not Running the pump dry will cause damage and void allow any part of the body to come in contact with the warranty. -
Page 21: Shutdown
Unloader engine is turned OFF. 1. Turn engine OFF. Model# 15781520 2. Turn water supply OFF. 3. Actuate spray gun trigger to relieve system pressure. 4. Remove garden hose. Unloader 5. Remove pressure hose. -
Page 22: Storage
Storage When you are finished using the pressure washer, you 1. Drain the water from the high pressure hose and must prepare the sprayer for storage and store it in a spray gun by depressing the trigger on the spray proper location. -
Page 23: Prepare Pressure Washer For Storage
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. -
Page 24: Maintenance & Repair
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. Maintenance Schedule Summary Item Frequency... -
Page 25: Clean Inlet Filter
WARNING: High Pressure Fluid Injection Hazard High pressure fluid discharge from leaks (even Model# 15781520 pin-sized) or ruptured components can pierce skin and inject fluid into the body. Injection injury can result in blood poisoning and/or severe Filter tissue damage leading to infection, gangrene, and possibly amputation. -
Page 26: Perform Engine Maintenance
6. Replace oil fill cap. questions, problems, or parts orders Model# Model# Oil Fill Cap 15782020 15781520 Sight Glass Oil Drain Plug Oil Fill Cap NOTICE: Dispose of used motor and pump oil in a manner that is compatible with the environment and in accordance with local, state, and federal laws and regulations. -
Page 27: Troubleshooting
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. ENGINE WILL NOT START Causes Solutions... -
Page 28: Parts Explosion- Model # 15781520, 15782020- Rev C.3
Parts Explosion- Model # 15781520, 15782020- Rev C.3... -
Page 29: Parts List- Model #15781520 & 15782020- Rev C.3
Parts List- Model #15781520 & 15782020- Rev C.3 REF# PART# DESCRIPTION MODEL 305200 Wheel Retainer 788814 Tire 791308 Nozzle Quick Coupler 38578 Knob 791309 Lance 22622 Lance Extension w/ QC 780455 Spray Gun Quick Coupler 779168 Spray Gun Trigger 779165... -
Page 30: Pump Assemblies
Pump Assemblies For 15781520 For 15782020... -
Page 31: Pump Assemblies Parts List
Pump Assemblies Parts List REF# PART# DESCRIPTION MODEL 777915 Quick Connect Outlet Plug 4027 Inlet Filter Washer 15781520 35169 1/2” Inlet Filter 15782020 15781520, 777340 ¼” x ¼” Hose Barb Fitting 15782020 15781520, 777834 ¼” Hose Clamp 15782020 ¼” PVC Hose (sold by... -
Page 32: Pump Exploded View- Comet Awd (Model 15781520)
Pump Exploded View- Comet AWD (Model 15781520) Part # Code Description Part # Code Description Not Available Brass Manifold CO1210004000 O-Ring Not Available Screw CO1210004900 O-Ring CO1210041500 O-Ring CO1802019700 Spring Not Available Suct. /Del. Valve Seat CO2409008600 Check Valve CO3604002800 Suct. - Page 33 Not Available Pump Crankcase CO0009020500 Ring Not Available Packing + Ring CO0009020700 Spring Spacer CO1241005700 Packing CO1802018200 Spring (Wire Ø3, 25) CO0009037400 Packing Retainer CO3622003000 Stop Adjustable Nut CO1210033300 O-Ring CO1227002200 Ring Nut CO0019005800 Oil Seal CO 0204004600 Bushing CO2811008400 Washer CO1215040300 Reg.
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Page 34: Pump Exploded View- Cat 66Dx (Model 15782020)
Pump Exploded View- Cat 66DX (Model 15782020) Ref# DESCRIPTION Ref# DESCRIPTION Not Available Screw CA45188 Seal Not Available Bearing Cover CA48759 Seal Case CA14028 O-Ring, Bearing Cover CA13980 O-Ring for Seal Case CA125351 Oil Seal CA48758 Seal CA14037 O-Ring, Bearing Cover CA48757 Male Adapter CA146421... -
Page 35: Limited Warranty
NorthStar shall warranty any piece of equipment manufactured, or parts of equipment manufactured, to be free from defects in material or workmanship for a period of: NorthStar Warranty Item # Consumer Warranty Period Commercial Warranty Period 15781520 4 years from date of purchase by user 2 years from date of purchase by user 15782020 Engine Warranty Item #... - Page 36 Assembled by Northern Tool & Equipment Company, Inc. Burnsville, MN 55306 NorthernTool.com...