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Electric Hot Water/Steam Pressure Washer
This pressure washer produces both cold and hot water high-pressure spray as well as wet steam. Cleaning
chemicals may be incorporated into the spray if desired. The pressure pump for this equipment is powered
by an electric motor and the water is heated by a diesel, kerosene/fuel-oil fired, down draft burner.
WARNING: SPECIAL HAZARDS
• Skin/Eye Injury: High-pressure spray can cause serious skin or eye injury, including injection injury if fluid pierces the skin.
Injection injury can result in blood poisoning and/or severe tissue damage.
• Burns: Hot spray can scald and burn skin. Hot surfaces of wand and burner, as well as hot exhaust from the burner can
cause burns.
• Slips/Falls: Spray discharge can cause puddles and slippery surfaces. Spray-gun kickback can cause operator loss of
balance and falls.
• Flying Debris: High-pressure spray can cause surface damage and flying debris.
• Fire/Explosion: Burner sparking can ignite fuel or other flammable liquids or vapors in the vicinity. Hot exhaust from burner
can ignite combustible materials.
• Chemical Exposure: Cleaning chemical vapors or contact with skin may be hazardous.
• Electric shock: Spray contact with electrical sources can cause electric shock.
• Electrocution: Improper connection of the equipment or grounding conductor can result in a risk of electrocution.
• CO Poisoning: Exhaust from burner contains carbon monoxide, a poisonous gas that can cause carbon monoxide poisoning
and possible death if inhaled.
Inspect Upon Delivery: STOP! Closely inspect to make sure no components are missing or damaged. For missing
or damaged components please contact Product Support at 1-800-270-0810.
Check Pump Oil: 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)
Water Flow Requirements: Make sure your supply water flow rate is 20% higher than the pressure washer's flow
rate (See Specification Section for unit specific flow rates), and that your water is clean and particle free.
Chemical Spraying: Use only NorthStar brand or equivalent washer chemicals designed for pressure washer use.
Maintenance Schedule: Pump, burner fuel filter, burner coil and electrodes require periodic checking and servicing
to keep pressure washer functioning efficiently. See "Maintenance & Repair" for frequency of servicing.
Any Questions, Comments, Problems or Parts Orders
Owner's Manual
Portable Outdoor – Use Only
Equipment Protection Quick Facts
Call NorthStar Product Support 1-800-270-0810
ITEM NUMBER: 1574212
SERIAL NUMBER: _____________
1
M1574210J
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Summary of Contents for North Star M1574210J
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Page 1: Equipment Protection Quick Facts
M1574210J ITEM NUMBER: 1574212 SERIAL NUMBER: _____________ Owner’s Manual Electric Hot Water/Steam Pressure Washer Portable Outdoor – Use Only This pressure washer produces both cold and hot water high-pressure spray as well as wet steam. Cleaning chemicals may be incorporated into the spray if desired. The pressure pump for this equipment is powered by an electric motor and the water is heated by a diesel, kerosene/fuel-oil fired, down draft burner. -
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 SPECIAL EQUIPMENT SAFETY FEATURES ......................8 High Pressure Safety Device (Rupture Disc) ........................8 Temperature Sensor ................................ - Page 3 Attach Nozzle to Spray Gun ..............................18 Step 2. Pre-Spraying Procedure ............................18 Safety Rules ..................................18 Personal Protective Gear ..............................19 Purging ....................................19 Step 3. Spraying ..................................19 Starting ....................................19 Spraying Procedure ................................19 Using Chemicals for Cleaning (if desired) ........................... 19 Hot Spray Procedure ................................
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Page 4: About Your Pressure Washer
About Your Pressure Washer Thank you for purchasing a NorthStar hot water Site Selection. Pressure washers used while the open pressure washer! It is designed for long life, flame burner is used to heat the water are for dependability, and top performance. OUTDOOR USE ONLY unless specific exhausting guidelines are met. -
Page 5: Specifications
Specifications MODEL Model # 1574212 FLOW OUTPUT Pressure Rating 2750 psi Flow Rate 2.5 gpm Minimum Water Supply 3.0 gpm Flow Rate Maximum Temperature 250 F MOTOR Dedicated NEMA NEMA-6-30R Receptacles Motor Horsepower 5.0HP Amps Volts 240V DIMENSIONS/COMPONENTS Length 46” Width 32”... -
Page 6: Component Identification
Component Identification SEE DETAIL A SEE DETAIL C DETAIL B DETAIL C SEE DETAIL B DETAIL A DETAIL D BURNER FUEL PUMP BLOWER ASSEMBLY SEE DETAIL D Fig.1574210_1J SCALE 1.200 Ref # Description Ref # Description Ref # Description High PSI limit switch High Pressure Outlet Heat Switch Flow Switch... - Page 7 Component identification High, PSI limit switch: This is a backup safety 13. GFCI Cord: Device provides additional protection feature, if the system pressure exceeds the set form the risk of electric shock. pressure this device will stop the burner from firing. 14.
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Page 8: Special Equipment Safety Features
Special Equipment Safety Features This unit is equipped with the following safety features: pump from overheating. The thermal relief valve is located on the pump manifold’s low-pressure port. High Pressure Safety Device (Rupture Disc) Spray Gun Safety Latch Acts as a backup safety feature. If the Pressure Control Has a built-in trigger safety latch to guard against Valve (Unloader) malfunctions, this separate high- pressure safety device will open and relieve excess... -
Page 9: 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 10: Safety Decal Locations
Safety Decal Locations Fig.1574210_2 Always make sure safety labels are in place and in good condition. If a safety label is missing or not legible, order new labels or unsafe operation could result. To order replacement safety labels, call NorthStar Product Support at 1-800-270-0810. -
Page 11: Assembly And Initial Set-Up
Assembly and Initial Set-Up Step 1. Inspect & Unpack Step 2. Assembly Inspect the pressure washer immediately after you You must assemble your pressure washer before it can receive delivery for missing parts or damage. Find and be used. Refer to Fig.1574210_5 and follow the steps separate components identified in Fig.1574210_3 and listed below: Figure 1574210_4. -
Page 12: Step 4. Verify Electrical Connection
Assembly and Initial Set-Up Extension Cord Cat 4DX AND 4DNX Pump CAT 4DNX Pump 1574210) (For 1574212) (For 1574211 & 12) This appliance cord is equipped with a GFCI, do not use fill cap extension cords. If the appliance cord is not equipped with a GFCI, the appliance and any extension cord used should be connected only to a GFCl-protected power source. -
Page 13: Step 5. Moving And Handling
Step 5. Moving and Handling WARNING: Lifting hazard The pressure washer is heavy. It can crush and cause serious injury if it rolls out of control or tips over. Follow the instructions below for safely moving the pressure washer. Moving your pressure washer around •... -
Page 14: Before Each Use
Before Each Use Follow the steps below prior to each use. WARNING: Respond to fluid injection immediately Step 1: Inspect Equipment If injured by high-pressure fluid, no matter how small Electrical the wound is, see a doctor at once. A typical injection injury may be a small puncture wound that does not •... -
Page 15: Filling Burner Fuel Tank (If Heated Water To Be Used)
Before Each Use Filling Burner Fuel Tank (if heated water to Away from all building windows and air intakes • be used) (when burner used). Away from other heat-generating equipment. • WARNING: Flammability hazard Positioning: Burner fuels are highly flammable. Turn the machine off and allow it to cool for at least 2 minutes before The pressure washer should be positioned on a •... - Page 16 Before Each Use An abundant amount of air must be available for • proper combustion and cooling. Do not install in small, enclosed areas without an ample circulation of supply air. For more details, refer to NFPA 31: Standard for •...
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Page 17: Operation
Operation Step 1. Connect Hoses, Water Supply, and WARNING: Incompatable component Spray Nozzle hazard NEVER operate this pump with components (such as Note: The electrical power and pump are both off hose, connections, and spray gun) rated for lower during Step 1 procedures. pressure and/or temperature limits than the machine’s Attach Garden Hose to Water Supply maximum rated pressure and temperature, or... -
Page 18: Attach Nozzle To Spray Gun
Operation Note: Use only the black low-pressure nozzle for spraying chemicals, which provides the proper mixing ratio. Attach Nozzle to Spray Gun Correct Not Fully WARNING: Depressurize first Insertion Inserted Any time you remove/install/change a nozzle, you Figure 10b must depressurize hose line by squeezing the Collar Collar NOT spray gun trigger while the Motor is off. -
Page 19: Personal Protective Gear
Operation Prepare to wash small parts in a basket so the pressure Spraying Procedure does not push them away. Clamp down larger, Never run the machine without sufficient pump oil • lightweight parts. or sufficient water to cool the pump. Hold the spray gun firmly with two hands and a •... - Page 20 Operation Wear protective gear as directed. Always wear • Rinse with high-pressure spray, either hot or cold. • protective gloves when handling and cleaning. • When cleaning filters, check whether dangerous • Turn heat switch ON and adjust thermostat to •...
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Page 21: Hot Spray Procedure
Operation Hot Spray Procedure For Model 1574212 CAUTION: Metal burn hazard Use of burner will make spray gun hot. Avoid touching 1.Turn thermostat knob to OFF position. wand. Serious burns from hot metal could occur if 2.Spray cold water for two minutes. touched. -
Page 22: Storage
Storage Between-Use Storage Before storing, let machine cool for at least 5 minutes, as a hot engine can be a fire hazard. Place in a secure location where it will not be started by untrained persons. An appropriate storage location is: Clean and dry. - Page 23 Storage Alternately the system can be blown out with compressed air: Note: although this method can be effective for winterizing, the above antifreeze method is preferred because it ensures the entire plumbing system is flushed and lubricated. Materials: 1. Properly rated fittings (80 psi or higher) to connect air supply to inlet connection (¾”...
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Page 24: Maintenance & Repair
Maintenance & Repair WARNING: Maintenance hazards ALWAYS shut off water supply, bleed water pressure, turn off motor and unplug electrical cord before cleaning, adjusting, or servicing the pressure washer. After servicing, make sure all guards and cover shields are replaced before using. Follow all safety rules and recommended maintenance instructions. -
Page 25: Clean Inlet Filter For Garden Hose
Maintenance & Repair section of this manual to determine the type of pump that came equipped with this pressure washer) a. For GP pumps: Use SAE30 non-detergent oil or Pressure Pump Oil Item #4043 Good b. For Cat pumps: Use SAE30 non-detergent oil or Cat Pump Oil Item #22158. - Page 26 Maintenance & Repair Choose a well-ventilated area and use the recommended 2. Add commercial coil cleaner to water and mix. Use PPE (personal protective equipment) of the coil cleaning an acid resistant 5-gallon bucket. chemical manufacture when descaling the coil and/or using 3.
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Page 27: Inspect And Clean The Flow Switch As Needed
Maintenance & Repair Inspect and clean the flow switch as needed Mineral build-up and/or debris within the flow switch can occur and may affect burner operation if not periodically cleaned. Mineral build-up and/or debris can stop the movement of the shuttle inside the flow switch body. Shuttle Shuttle movement is important because the burner will Assembly... -
Page 28: Inspect Heating Coil And Desoot As Needed
Maintenance & Repair Cap Fitting; TORX Torque to 100lb-in Screw Enclosures 10) On the elbow on the inlet of the coil, remove any remaining thread tape/sealant. Re-apply new thread tape/sealant on the elbow. Re- Body connect the swivel to the elbow. Hand-tighten the swivel onto the elbow, and once snug, using a wrench continue to tighten the swivel two 6) Rinse “Body”... -
Page 29: Inspect/Clean/Adjust Electrodes
Maintenance & Repair Outer Cover Inspect/Clean/Adjust Electrodes Inspect electrodes yearly and replace as needed. 1) Loosen front (2) bolts using a 1/2” socket. Loosen side (2) bolts using a 1/2” socket and wrench. 2) Remove (3) screws using a 5/32” hex key Allen Outer Wrap wrench from the combustion head. -
Page 30: Perform Engine Maintenance
Maintenance & Repair Instructions for inspecting: 1) Remove flame sensor bracket Flame sensor bracket Fig157115-4 2) Following normal starting procedure with burner and thermostat off. With unit running look through flame sensor sight glass to observe if there is a spark. Perform Engine Maintenance All mechanical equipment, no matter how well designed, will need maintenance and repairs. -
Page 31: Oil Burner Adjustment (Only Needed If White Exhaust Smoke Appears)
Oil Burner Adjustment (only needed if white exhaust smoke appears) The oil burner is preset, and performance tested at Note: which number the arrow is near. factory elevation of 1100 feet. Different altitudes may 5. Slowly rotate air intake covers require a one-time initial burner adjustment. -
Page 32: Troubleshooting
Troubleshooting Pressure Washer Will Not Run At All - No Power Causes Solutions Machine turned OFF Turn Pump switch ON Line circuit breaker tripped Check for tripped circuit breaker in building Circuit Breaker Trips Causes Solutions Voltage too low Check the voltage Circuit Breaker Overloaded Make sure there is no other equipment using the same circuit. - Page 33 Troubleshooting Pressure Washer Runs but Surges or Cycles While In Bypass Causes Solutions Leak between unloader and gun. Check all connections between unloader and gun for leaks. Tighten loose components and replace damaged components. Gun leaking internally Replace spray gun Rupture Disc Sprays Water Causes Solutions...
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Page 34: Major Components
Major Components Fig.1574210_14 MAJOR COMPONENTS Ref.# Description Page# Frame Heat Exchanger Blower and Fuel Pump Motor, water pump and fuel system Accessories- Gun, hose, chemical injector These components go into more detail on the following pages. -
Page 35: Parts Explosion: Frame
Parts Explosion: Frame Fig.1574210_15J... - Page 36 Parts List: Frame ITEM PART# DESCRIPTION MODEL 1574212 799967 CORE WELDMENT 1574212 82008 NUT, 10-32 KEPS 1574212 800619 ISO MOUNT 1574212 799875 BRAKE 1574212 777838 HEX PLUG, 1/4" C. SUNK 1574212 800663 DECAL, NOZZLE OPTIONS 1574212 35198 GROMMET,7/16 ID-.125 1574212 82621 5/16-18 X .75 HHFB 1574212...
- Page 37 Parts List: Frame ITEM PART# DESCRIPTION MODEL 1574212 802974 PLATE, FUEL/PUMP/MOTOR COVER - PW 1574212 789635 GROMMET, 3/16 GW X 1 GD - AC 1574212 779666 CLAMP, 1" LOOP 1574212 777110 CLIP, HOSE 1/2" - PW 1574212 797052 THERMOSTAT KNOB 1574212 802972 CONTROLLER, TEMP.
- Page 38 Parts Explosion: Heat Exchanger...
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Page 39: Parts List: Heat Exchanger
Parts list: Heat Exchanger ITEM PART# DESCRIPTION Model Heat exchanger assembly 82621 Bolt, 5/16-18 x 3/4" hex head flange 1574212 796266 Fuel line guard, top 1574212 798383 Decal, Flame Sensor Lens Cleaning Instructions 1574212 796496 Decal, Electrical Shock Hazard 1574212 793645 Clip, hose/wire 1574212... - Page 40 Parts Explosion: Blower & fuel pump Fig.1574211_17 ITEM PART# DESCRIPTION MODEL ASSEMBLY FAN & HUB STATOR 1574212 82109 HHCS, GR5Z 3/8-16 X 3 1/4 1574212 802061 DAMPER, MED CAP - PW 1574212 801982 ASSEMBLY, AC HOUSING MED. INLET - PW 1574212 82613 M6-1X8 SET SCREW, KNURLED CUP...
- Page 41 Parts Explosion: Motor, Water Pump & Fuel System PUMP EXPLODED VIEW FUEL SYSTEM 13.1 FOR 1574210 FOR ALL MODEL FOR 1574212 PUMP EXPLODED VIEW PUMP EXPLODED VIEW FOR 1574211 & 12 FOR 1574213 FOR 1574212 Fig.1574210_18J...
- Page 42 Parts List: Motor, Water Pump & Fuel System ITEM PART# DESCRIPTION MODEL 1574212 803875 MOTOR, 5.0HP 230V, 1PH, 3450 1574212 PUMP-CAT 4DNX 2.5@3000 A1574212 KEY AND BOLT MOUNT KIT (NOT SHOWN) CA30516 1574212 30484 BYPASS,3/8 X 1/4, HEX BRASS(PW) 1574212 35918 PROTECTOR, THERMAL,1/4 NPT-PW 1574212...
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Page 43: Parts Explosion: Accessories: - Gun, Hose, Chemical Injector
Parts Explosion: Accessories: - Gun, Hose, Chemical Injector ITEM PART# MODEL DESCRIPTION GUN WITH LANCE 779165 1574212 791274 1/4 QUICK COUPLER 1574212 796379 O-RING (NOT SHOWN) 1574212 791278 LANCE,18.5" W/VITON COUPLER 780455 3/8” QUICK COUPLE SOCKET X 3/8" MPT 1574212 GP2701020 O-RING (NOT SHOWN) 777915 NIPPLE, 3/8”... - Page 44 Pump Explosion-CAT 4DNX Ref# DESCRIPTION Ref# DESCRIPTION CA549360 Screw CA46233 Retainer, Seal CA547153 Bearing Cover CA49816 Seal CA14041 O-Ring, Bearing Cover Not Available Seal Case CA55337 Oil Seal CA13976 O-Ring For Seal Case CA14488 Inner Ball Bearing CA49824 Seal CA547048 Connecting Rod CA17428 O-Ring, Inlet...
- Page 45 Pump Explosion-CAT 4DNX Ref# DESCRIPTION Ref# 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 CA20184 Back Up Ring O-Ring Kit Includes: 414, 415, 424, 428, CA31767...
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Page 46: Wiring Diagram - 1574212
Wiring Diagram – 1574212 TSS SWITCH TSS-WIRE CONTROL BOX 2 POSITION LEVER LOCK WIRE NUT THERMOSTAT WIRE NUT BOARD FLOW SWITCH PUMP MOTOR POWER WIRE NUT SWITCH BURNER 2 POSITION LEVER LOCK SWITCH PLUG HI PRESSURE LIMIT CONTROL BOARD CONTACTOR PLUG YLW/GRN 3 POSITION... -
Page 47: Summary Of Important Safety Information
Summary of Important Safety Information This section provides a summary of the various safety procedures and measures that have been presented throughout the manual. Keep this summary handy and refer to it to refresh your memory about how to safely use your pressure washer. - Page 48 Summary of Important Safety Information • Adequate ventilation. The pressure washer needs adequate, unobstructed flow of air to allow for proper combustion and cooling. Situate so there is adequate clearance around pressure washer to allow for airflow – at least 7’ from any non-combustible wall or obstruction.
- Page 49 Summary of Important Safety Information • Position safely. Place sprayer on firm, level ground to prevent accidental falls and equipment tip-over. • Not in presence of combustibles. Do not use the pressure washer in the presence of flammable vapors, dust, gases, or other potentially combustible materials.
- Page 50 Summary of Important Safety Information • Keep spray away from electrical wiring. Spray contact with electrical wiring will likely result in severe electrical shock or electrocution. • Use only approved cleaning chemicals. Only chemicals specifically designed for use in pressure washers may be used. Never spray acids, corrosives, or abrasive or flammable liquids.
- Page 51 Summary of Important Safety Information SAFETY - INSPECTION/MAINTENANCE Inspect and maintain your pressure washer on a regular basis and repair as needed to keep it in safe working condition: • Turn off / relieve pressure first. Turn off pressure washer and relieve system pressure before inspection or maintenance before working on the Motor or pressure washer to prevent accidental starting.
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Page 52: Limited Warranty
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. - Page 53 This page is intentionally left blank.
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Page 54: California Proposition 65 Information
California Proposition 65 Information WARNING : This product can expose you to chemicals including acetaldehyde, 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.