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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: Spraying live electrical components or systems 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. Remove shipping plug and install vented fill
cap.
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
Machine that cleans dirty surfaces with
high pressure water.
Equipment Protection Quick Facts
Call NorthStar Product Support 1-800-270-0810
M157119G
ITEM NUMBER: 157119, 157120
SERIAL NUMBER: _____________
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Table of Contents
Related Manuals for NorthStar M157119G
Summary of Contents for NorthStar M157119G
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Page 1: Equipment Protection Quick Facts
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 Call NorthStar Product Support 1-800-270-0810... -
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 TROUBLESHOOTING ..............................27 PARTS EXPLOSION- MODEL #157119, 157120 – REV G ..................28 PARTS LIST - MODEL #157119, 157120 – REV G ....................29 PUMP ASSEMBLIES ..............................30 PUMP EXPLODED VIEW – CAT 4DNX ........................31 PUMP UNLOADER EXPLODED VIEW – CAT 4DNX ....................32 PUMP EXPLODED VIEW –...
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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. See It is designed for long life, dependability, and top suitable mounting location page 12, step 3. performance. Personal Protection. Wear safety apparel during Intended Use. -
Page 5: Specifications
Specifications 157119 157120 FLOW OUTPUT FLOW OUTPUT PSI (bar) 3300 (227.5) PSI (bar) 4200(289.6) 2.5 (9.5) 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 200 Engine Honda GX 390 389 cc Displacement... -
Page 6: Component Identification
Component Identification #157120 #157119 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. Engine: Honda engine provides years of reliable use. -
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. #157119 #157120 On-Product Warning Labels... - Page 9 Safety Labeling 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
If complete, fill out product serial number information. See “Limited Warranty” section of this manual. • Pressure Hose Engine/Pump/Base Assembly *157119 SHOWN Lance Spray Gun Hardware Bag Fig06732 Any Questions, Comments, Problems or Parts Orders call NorthStar Product Support at 1-800-270-0810. - Page 11 Initial Set-Up Hardware Bag PART# 800110 FOR (MODEL #157119) OR PART# 800111 FOR (MODEL #157120) NOZZLES QTY 4 PART# 82631 3/8"–16 FLANGE NUT PART# 82625 QTY 4 3/8"-16 x 1-3/4" FLANGE BOLT (MODEL# 157119, 157120) QTY 4 (MODEL# 157119, 157120)
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Page 12: Step 2. Assembly
Initial Set-Up Step 2. Assembly Note: Remove contents from packaging to begin WARNING: Lifting hazard assembly. The pressure washer is heavy. It can crush and cause serious injury or tips over. Follow the instructions below for safely moving the pressure washer. Spray Gun Assembly Outdoor Use Only 1.) Attach the Lance to Spray Gun. -
Page 13: Install Spark Arrestor (If Required)
Initial Set-Up Install Spark Arrestor (if required) 3. Do not place any objects against or on top of Equip engine with spark arrestor if machine will be the unit. used near any ignitable forest, brush, or grassy 4. The pressure washer needs adequate, land. -
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
Operation Avoid inhalation of exhaust. This product emits CO 2. Wear non-slip, protective footwear. Use of pressure and chemicals known to the State of California to cause washer can create puddles and slippery surfaces. cancer, birth defects, or other reproductive harm. Wear footwear capable of maintaining a good grip on Never pull by hose. -
Page 16: Inspect Fuel System/Check For Leaks
Operation 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
Operation Model Time to fill 5 Gallon Bucket WARNING: High Pressure Fluid 157119 100 sec Injection Hazard 157120 72 sec High-pressure fluid discharge from leaks (even pin- sized) or ruptured components can pierce skin and 3.) The water supply garden hose must have an inside inject fluid into the body. -
Page 18: Prime The Water Supply
Operation Select Nozzle for Spray Gun 3. Release the collar, making sure it springs back and Your pressure washer is equipped with four high- re-seats to its original (non-retracted) position. pressure nozzles. Generally, the wider the spray angle Check the connection by pulling on the nozzle to of the nozzle, the lower the spray impact produced. -
Page 19: Set Up For Chemical Spray (If Desired)
Operation Acquire Cleaning Chemical Set Up for Chemical Spray (if desired) Use only approved pressure washer chemicals or Prepare for Chemical Spray (if planning to chemicals specifically formulated for use with pressure use) washers. Using the proper cleaning chemical for the application CAUTION: Non-approved Chemicals can speed up cleaning jobs tremendously. -
Page 20: Start-Up Procedures
Operation Start-Up Procedures 7. Rinse with high-pressure spray as instructed: Start the Engine to Power the Pump Begin High Pressure Spray 1. Make sure water supply is connected and primed. WARNING: High-Pressure Spraying Safety CAUTION: Warranty Void • Keep spray away from people. Never direct Running the pump dry will cause damage and void discharge stream at or near any person. -
Page 21: Shutdown
Operation 3. Hold the spray gun firmly with two hands and a 10. Always turn off the engine and activate spray gun sturdy stance -- Gun kicks back when triggered. trigger to relieve system pressure when: 4. Wash from the bottom to the top, using side-to- the sprayer is unattended, or •... -
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. gun until all water drains out. -
Page 23: Prepare Pressure Washer For Storage
Storage • 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. -
Page 24: Maintenance & Repair
Do not start pressure washer until all needed repairs Major repair Major service, including the • have been completed. installation or replacement of parts, should be performed only by a qualified service technician. Obtain factory approved parts from NorthStar Product Support at 1-800-270-0810. -
Page 25: Clean Inlet Filter
Maintenance & Repair WARNING: High Pressure Fluid 4) Remove filter screen. Injection Hazard 5) Run water through filter screen to clean. High pressure fluid discharge from leaks (even 6) Reassemble. 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. - Page 26 NOTE TO COMMERCIAL USERS: All mechanical equipment, no matter how well designed, will need maintenance and repairs. A NorthStar pressure washer is no exception. At times, a NorthStar pressure washer may become inoperable because repairs are required. NorthStar Product Support will...
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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 #157119, 157120 - Rev G
Parts Explosion- Model #157119, 157120 – Rev G *157120 SHOWN... -
Page 29: Parts List - Model #157119, 157120 - Rev G
Parts List - Model #157119, 157120 – Rev G REF# PART# DESCRIPTION MODEL 606512 ENGINE-HONDA 196 cc 157119 601091 ENGINE-HONDA 389 cc 157120 A1578171 CAT 4DNX PUMP ASSEMBLY 157119 A1578201 CAT 66DX PUMP ASSEMBLY 157120 800042 PLATE, ENGINE/PUMP MOUNT 157119, 157120 779165 SPRAY GUN 157119, 157120... -
Page 30: Pump Assemblies
Pump Assemblies A1578171 A1578201 Ref# Part# Description Model 777915 3/8" QC x 3/8" FNPT 157119, 157120 777347 3/8" STREET TEE ELBOW 157119, 157120 777410 3/8" STREET ELBOW 157120 38584 EASY START VALVE 157119, 157120 777834 ¼” HOSE CLAMP 157119, 157120 777376 VALVE, POP-OFF 157120... -
Page 31: Pump Exploded View - Cat 4Dnx
Pump Exploded View – Cat 4DNX Ref# Part# Description Ref# Part# Description CA549360 SCREW CA49816 SEAL CA547153 BEARING COVER Not Available SEAL CASE CA14041 O-RING, BEARING COVER CA13976 O-RING FOR SEAL CASE CA55337 OIL SEAL CA49824 SEAL CA14488 INNER BALL BEARING CA17428 O-RING, INLET CA547048... -
Page 32: Pump Unloader Exploded View - Cat 4Dnx
Pump Unloader Exploded View – Cat 4DNX Ref# Part# Description Ref# Part# Description CA547798 ADJUSTING CAP CA46254 SEAT, CHECK VALVE CA45070 LOCK NUT CA13963 O-RING, CHECK VALVE SEAT CA32094 PRESSURE SPRING CA49765 VALVE, CHECK CA549352 SPRING RETAINER CA45924 SPRING CA45694 PISTON STEM CA26133 O-RING, BODY... -
Page 33: Pump Exploded View - Cat 66Dx
Pump Exploded View – Cat 66DX Ref# Part# Description Ref# Part# Description Not Available SCREW CA46730 WASHER Not Available BEARING COVER CA48201 RETAINER, PLUNGER CA14028 O-RING, BEARING COVER CA48755 RETAINER, SEAL CA125351 OIL SEAL CA45188 SEAL CA14037 O-RING, BEARING COVER CA48759 SEAL CASE CA146421... -
Page 34: Pump Unloader Exploded View - Cat 66Dx
Pump Unloader Exploded View – Cat 66DX Ref# Part# Description Ref# Part# Description CA49100 HANDLE, ADJUSTING CA49121 WASHER, SEAL (3/8”) (BLACK) Not Available CAP, ADJUSTING CA49245 VALVE, CHECK W/NBR O-RING CA125521 NUT, LOCKING (M25X1) CA117275 SPRING, CHECK VALVE CA88953 SCREW, SET (M4X4) CA26133 O-RING, BODY –... -
Page 35: Limited Warranty
In addition to the normal warranty, NorthStar shall warrant any normal wear item from defects in material or workmanship for a period of 90 days from the date of purchase by user. Normal wear items include, but are not limited to, nozzles, quick connect fittings, valves, seals, hoses, springs, O-rings, unloader valves and filter elements. -
Page 36: California Proposition 65 Information
California Proposition 65 Information WARNING: This product can expose you to chemicals including gasoline, 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.