North Star M157310AC.1 Owner'S Manual Download Page 9 | Manualshive

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Assembly and Initial Set-Up

9

Steps for Assembly / Initial Set-Up

Step 1. Unpacking & Delivery Inspection

Step 2. Assembly

Step 3. Initial Pump & Engine Preparation

Step 4. Battery Installation

Each of these steps is discussed in the below:

Step 1. Unpacking & Delivery Inspection

Find and separate the components identified in Figure 2- Overview of Pressure Washer

Components and Figure 3- Hardware Bag. Inspect the pressure washer immediately after you

receive delivery for missing parts and damage.



If you have missing or damaged components, contact Product Support at 1-800-270-0810.

Figure 2

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Summary of Contents for M157310AC.1

Page 1: ...es 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 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 ...

Page 2: ...ne Manual shipped with unit for acceptable grade motor oils Check Pump Oil Pump is shipped with oil Remove shipping tape and black vent plug if present from oil fill cap Battery Required A battery is not included The engine will run but the burner will not fire unless a battery is installed Purchase a standard lawn and garden Group U1 battery The engine requires a 12V battery with a minimum rating...

Page 3: ...4 Battery Installation 13 Moving and Handling 14 Before Each Use 15 Step 1 Check Equipment 15 Step 2 Add Fuel s 16 Step 3 Select a Suitable Worksite 18 Operation 20 Step 1 Connect Hose s Water Supply and Spray Nozzle s 20 Step 2 Set Up for Chemical Spray if desired 23 Step 3 Spraying 25 Step 4 Stopping 31 Storage 31 Burner Adjustment 34 Maintenance and Repair 36 Troubleshooting 45 Parts Explosion ...

Page 4: ...ety apparel includes waterproof insulated gloves safety glasses with side and top protection and non slip protective footwear Some cleaning chemicals may require the use of a respirator mask as instructed on chemical label Before using this washer the user shall determine the suitability of this product for its intended use and assumes liability therein Read this Manual WARNING Carefully read and ...

Page 5: ...tor Maximum dilution ratio 13 to 1 SUPPLIES REQUIRED not included Engine Fuel Regular Unleaded Gasoline Engine Oil See Engine Owner s Manual Burner Fuel 1 or 2 Diesel B5 or lower Biodiesel Kerosene or Fuel Oil Pump Oil shipped with oil but refills required SAE 30 non detergent oil Battery 12 Volt minimum 18 Amp Hr Lawn and Garden Battery Group U1 Input Water Supply Standard tap water 20 75 psi del...

Page 6: ... to house the battery 4 Fuel Filter Water Separator Filter in fuel line that removes water and screens out dirt and debris from fuel 5 Gas Cap Cover for gas tank 6 Gas Tank Gas storage container 7 Fuel Cap Cover for fuel tank 8 Fuel Tank Fuel storage container 9 Control Panel Flat surface for mounting switches 10 Engine The air cooled engine powers the pump 11 Burner A device used to efficiently c...

Page 7: ...liquids Operate only where open flame or torch is permitted NEVER fuel a running or hot engine or oil burner Ensure there are no fuel leaks before starting Keep sources of sparks and flames away Use approved container only for transferring fuel Clean up fuel spills immediately Keep engine and burner exhaust at least 7 feet from all combustible objects Situate on heat resistant flooring when using ...

Page 8: ...rature and automatically turns the burner off when the temperature setting is reached When the discharge spray temperature drops the burner automatically reignites Thermal Relief Valve This unit is equipped with a thermal relief valve to protect the pump from overheating The pump continues to work in bypass mode when you are not spraying If high temperatures are developed during bypass mode the th...

Page 9: ...h of these steps is discussed in the below Step 1 Unpacking Delivery Inspection Find and separate the components identified in Figure 2 Overview of Pressure Washer Components and Figure 3 Hardware Bag Inspect the pressure washer immediately after you receive delivery for missing parts and damage If you have missing or damaged components contact Product Support at 1 800 270 0810 Figure 2 ...

Page 10: ... Up 10 Figure 3 Honda Manual Qty 1 Nozzle Qty 6 Owner s Manual Qty 1 Wheel Retainer QTY 4 Grommet Qty 6 5 16 Nut QTY 2 5 16 Washer QTY 8 5 16 x 2 Bolt QTY 2 4 ft Braided Hose Strainer QTY 1 Hose Hook QTY 1 M8 Nylock Nut QTY 2 ...

Page 11: ...if it rolls out of control or tips over Always use at least two people or a mechanical assist to lift the unit while a third person slides the wheels onto the axles Lift back of unit by handles to install rear wheels then lift front of unit to install front wheels Fasten wheel with retainer secure retainer with wrench provided NOTE It is recommended that two people lift this unit while a third sli...

Page 12: ...sembled pressure washer off of the pallet Step 3 Initial Pump Engine Preparation Prepare Water Pump Verify pump oil level Note The pump is shipped with oil 1 Verify oil level a Remove shipping tape and black vent plug if present from oil fill cap b Verify that oil level is half way up the sight glass 1 If oil level is low fill using SAE30 non detergent oil or Cat Pump Oil Item 22158 2 Replace oil ...

Page 13: ...nstructions listed below General Battery Safety Rules ALWAYS use eye protection and protective clothing when handling batteries NEVER smoke or work near sparks or other sources of ignition NEVER touch both battery terminals at the same time with your hand or any non insulated tools If battery acid contacts skin or clothing flush immediately with water and neutralize with baking soda Connecting the...

Page 14: ...le to manually move the pressure washer 2 To turn lift slightly on the handle and pivot the pressure washer on its front wheels 3 Engage brakes to prevent inadvertent movement Pull brake arms out rotate them down and use them as chocks See Figure 7 Elevating or lowering your pressure washer To reduce risk of injury use a hoist or shallow ramp to raise or lower the pressure washer When using a hois...

Page 15: ...ever open oil port while engine is running Hot oil can spray over face and body Notes o Low oil shutdown feature prevents the engine from starting without sufficient oil o Engine is shipped without oil You must add oil before first use Inspect spray system Always inspect spray system for damage and leaks before each use Do not start pressure washer until all needed repairs have been completed WARN...

Page 16: ...d Make sure that any other regular maintenance has been performed as prescribed in this manual in the Maintenance Repair section 1 Refer to the engine owner s manual for engine maintenance instructions 2 Make sure battery is charged Charge as needed according to your battery manufacturer s instructions Step 2 Add Fuel s WARNING Fuel fire explosion hazard Gasoline is highly flammable and explosive ...

Page 17: ...s immediately If possible move the pressure washer away from spilled fuel on the ground Wipe up spilled fuel and wait 5 minutes for excess fuel to evaporate before starting engine Fuel soaked rags are flammable and should be disposed of properly If fuel is spilled on your skin or clothes change clothes and wash skin immediately Fill engine fuel tank Check the gasoline tank level If needed fill tan...

Page 18: ...be well ventilated resulting in dangerous and fatal concentrations within minutes Follow the directions below for choosing a location to operate your pressure washer in order to avoid carbon monoxide poisoning The location you choose to operate the pressure washer must be OUTDOORS and at least 20 feet from the home away from windows vents and air intakes to allow proper ventilation If you start to...

Page 19: ...Never place any objects against or on top of the pressure washer Do not operate with a tarp blanket or cover surrounding the pressure washer 4 Hot exhaust clearance The exhaust gas from your pressure washer is extremely hot and can cause combustible materials to catch on fire Make sure both the engine exhaust and burner exhaust are at least 7 feet from all combustible materials and structures duri...

Page 20: ...washer in a suitable location for use as directed in the Before Each Use Step 3 Select Suitable Worksite section of this manual A suitable location is OUTDOORS only away from all building air intakes Where no flammable vapors dusts and gases are present Where there is adequate unobstructed ventilation airflow With adequate clearance from combustible materials On a firm level heat resistant surface...

Page 21: ...n insufficient water supply will damage your pump Use a stopwatch to time how long it takes to fill a 5 gallon bucket with your garden hose It should take less than 63 seconds Attach garden hose to pump Attach garden hose to the water inlet on the pump 1 See Machine Component Identification section of this manual for location of water inlet 2 Confirm rubber washer and inlet screen are in the pump ...

Page 22: ...g table Color of Nozzle Spray Angle Used For Red 0 Highest Impact Yellow 15 Tough Stains Stripping Green 25 General White 40 Light Cleaning Black Low pressure 65 Chemicals Yellow 15 Steam NOTE You must use the black low pressure nozzle for spraying chemicals Attach nozzle Attach nozzle to the spray gun WARNING Depressurize first Any time you remove install change a nozzle you must depressurize hos...

Page 23: ...ious personal injury or property damage if not properly connected to the spray gun Do not attempt to use different types of nozzles that may not fit the coupler Figure 9b Step 2 Set Up for Chemical Spray if desired Using the proper cleaning chemical for the application can speed up cleaning jobs tremendously Your pressure washer is equipped with a quick connect chemical injector which siphons clea...

Page 24: ... when handling and cleaning with chemicals and wear other protective gear as directed by chemical manufacturer Always dispose of hazardous fluids per local state and national guidelines Acquire cleaning chemical Use only NorthStar pressure washer chemicals or chemicals specifically formulated for use with pressure washers CAUTION Non approved chemicals can damage pressure washer components seals w...

Page 25: ...sher with damaged missing or broken parts Never attempt to repair a high pressure hose or component Always replace it with a part that is rated at or above the pressure rating of the machine Modifications Do not modify the pressure washer in any way or deactivate any safety device Do not change or add to fuel tank fuel lines or exhaust system Modifications can result in hazards related to carbon m...

Page 26: ...l protective gear to prevent Eye and skin injection injury from high pressure spray Burns from hot water or steam Eye injury from flying debris 1 Wear waterproof thermally insulated gloves safety glasses with side and top protection face protection and protective clothing when operating the machine If spraying pressure washer specific chemicals wear a respirator mask to avoid inhalation of vapors ...

Page 27: ...to the water stream 3 You can apply chemicals with either warm or cold water Check chemical label If warm water is specified start burner according to instructions provided below 4 Apply chemicals by squeezing the spray gun trigger The chemical injector will draw the chemical into the water stream 5 The chemical concentration of the spray can be changed by turning the chemical adjustment knob loca...

Page 28: ...uctions step in the Set Up section of this manual 5 When the trigger is released a pressure switch automatically turns the burner off Also when the temperature setting is reached the thermostat automatically turns the burner off WARNING It is important that the burner stops firing when the trigger is released If the burner remains firing discontinue use until the pressure washer is serviced Extrem...

Page 29: ...fixtures flowerbeds mailboxes o unsecured lightweight objects Procedure 1 Put on one of the high pressure spray nozzles always relieve system pressure first and follow instructions for attaching a nozzle 2 Clear the cleaning area of all persons Keep children and pets away 3 Hold the spray gun firmly with two hands and a sturdy stance Gun kicks back when triggered CAUTION Spray gun metal gets extre...

Page 30: ...fety latch downward to the locked position to guard against accidental trigger release 9 Always turn off the engine and activate spray gun trigger to relieve system pressure when the sprayer is unattended or disconnecting hoses installing cleaning nozzles or servicing the pump WARNING Always turn off the engine and relieve system pressure when finished spraying or when leaving sprayer unattended S...

Page 31: ...spray gun 8 Turn gasoline line valve to the OFF position 9 Cool engine at least five minutes before storing A hot engine is a fire hazard Storage When you are finished using the pressure washer you must prepare the sprayer for storage and store it in a proper location Note o If you will be storing the sprayer in freezing conditions follow the instructions for preparing the sprayer for storage in f...

Page 32: ... storing the pressure washer in freezing temperatures you must properly prepare the pressure washer to prevent water from freezing in the system CAUTION Do not allow water to freeze in the pressure washer high pressure hose or spray gun Freezing water can cause damage to the equipment and cause the spray gun to fail in the open position A spray gun that has failed in the open position can whip aro...

Page 33: ...nstructions 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 Place rag over spark plug hol...

Page 34: ...adjust WARNING The burner adjustment procedure requires part of an individual s body to be underneath the pressure washer while it is elevated Always ensure the pressure washer is securely elevated before working on the burner underneath 2 Locate the air intake adjustment band as shown in Figure 13 below Observe the position of the arrow on the air band relative to the calibration numbers directly...

Page 35: ...from the air band and is used to fine tune the amount of intake air b Observe that the aluminum pointer attached to the shutter It points to the same set of calibration numbers as the air band arrow Observe which number it points to at the start of this adjustment step c Loosen the shutter lock screw Turn the shutter using the aluminum pointer until the exhaust is cleanest Tighten the shutter lock...

Page 36: ...urs of use Descale coil Annually or more frequently as use and performance require see instructions Inspect and desoot coil if needed Annually Inspect clean adjust electrodes Annually See detailed instructions for each maintenance item below Note For end of the season storage instructions see the Storage section of this manual Maintenance Repair Detailed Instructions Follow safety rules Read and f...

Page 37: ... fuel leak when you start the engine Inspect the entire fuel system for both engine and burner Look for signs of leaks or deterioration chafed or spongy fuel hose loose connections loose or missing fuel hose clamps damaged fuel tank or defective gasoline shut off valve Inspect spray system Inspect spray system for damage and leaks before each use Do not start pressure washer until all needed repai...

Page 38: ...ions that may be recommended by the manufacturer of these chemicals Always dispose of hazardous fluids per local state and national guidelines 1 Unscrew garden hose from water inlet if connected 2 Unscrew inlet filter 3 Remove filter screen 4 Run water through filter screen to clean 5 Reassemble Check tire pressure Check and refill tire pressure before each use 1 Remove air cap on tire 2 Check tir...

Page 39: ... Air filter check replacement 3 Spark plug cleaning and replacement 4 Fuel filter check replacement 5 Inspecting and cleaning muffler and spark arrestor if equipped Change pump oil Change the pump oil after the first 40 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 Reinst...

Page 40: ...hard water areas scale can build up inside the heating coil tubing Scale deposits will decrease the output pressure and temperature of heated spray and may eventually clog water flow through the heating coil Descale the coil tubing at least annually and more frequently if you detect a decrease in output pressure or temperature To descale the coil 1 Mix a commercial coil cleaner in a 5 gallon bucke...

Page 41: ...p and or debris can stop the movement of the shuttle inside the flow switch body Shuttle movement is important because the burner will not fire if the shuttle does not move The shuttle movement actuates a switch inside the flow switch housing which allows the burner to fire during spray mode 1 Disconnect the swivel fitting from elbow to the inlet of the coil 2 Disconnect the whole flow switch asse...

Page 42: ... the brass flow switch body onto the incoming water flow source hose or tee depending on the model 9 Reconnect the swivel fitting to the inlet of the coil Inspect heating coil and desoot as needed Inspect and desoot coil annually Most coils never require desooting However poor grades of fuel oil or inadequate combustion air will cause heavy soot build up on the outside surface of the heating coil ...

Page 43: ...sure the white insulation remains in place 6 Reattach high pressure hose and thermostat and make sure all fittings are tight before using the machine Figure 21 Inspect electrodes Inspect electrodes yearly and make adjustments as needed 1 Remove the 4 nuts that attach the burner to the heating chamber You do not have to disconnect the fuel lines or the electric cords 2 Pull the burner out from unde...

Page 44: ...mmend the following Have a staff person become familiar with the mechanical operation of the pressure washer and capable of making minor repairs and performing all preventative maintenance procedures Keep a stock of recommended service parts for maintenance and minor repairs IMPORTANT If a part needs replacement only use parts that meet the manufacturer s part number specifications Replacement par...

Page 45: ...hten loose components and replace damaged components Gun leaking internally Replace spray gun Smoke From Heat Exchanger Causes Solutions Air band not adjusted properly Adjust the air band until the burner burns cleanly See Installation Instructions Poor quality fuel Use kerosene for the cleanest burn Water Not Heating Sufficiently Causes Solutions Scale build up in coil See Coil Descaling under Ma...

Page 46: ...Parts Explosion M157310 Rev AC 46 ...

Page 47: ...3 31085 Circuit Breaker 1 22 789000 Decal NorthStar 1 74 790073 Handles 2 23 780397 Stainless Steel Wrap 1 75 787992 Steel Bushings 8 24 38398 Ceramic Insulation Lid 1 76 789547 Decal Nozzles 1 25 787686GB Carb Canister Hold Down Plate 2 77 305206 Printed Fuel Cap 1 26 35331 Lid Heat Exchanger 1 78 35198 Grommet 6 27 787827 Diesel Only Decal 1 79 778945 Nozzle 15 QC 3 5 Steam Yellow 1 28 777666 Ga...

Page 48: ...Pump Explosion Rev AC 48 ...

Page 49: ...Summary of Important Safety Information 49 ...

Page 50: ...t Modifications Never modify or alter the pressure washer in any way or deactivate any safety device Modifications can create serious safety hazards and will also void the warranty Fuel exhaust system Never add to or modify the exhaust system fuel tank or fuel lines Carbon monoxide poisoning fuel leaks fire or explosion could result Unloader valve Do not attempt to alter the unloader valve s maxim...

Page 51: ...Use approved container Never pump fuel directly into fuel tank at gas station Static charge can build and ignite fuel Use an UL approved fuel container to transfer fuel to the engine Running hot engine A hot engine or burner is hot enough to ignite fuel Never add fuel or remove fuel cap if engine or burner are running or still hot Allow engine to cool at least two minutes before adding fuel Heat f...

Page 52: ...with two hands Stay alert Watch what you are doing at all times Prevent slips loss of balance High pressure spray could cause you to lose balance from kickback forces and wet surfaces can be slippery Keep good footing and balance at all times Do not overreach Do not stand on unstable support when spraying Use extreme caution when spraying from a ladder or scaffolding ensure it is firmly anchored f...

Page 53: ...s own spray Engine damage will result Cleaning should be done with a damp sponge with the engine OFF Seek medical aid for suspected carbon monoxide poisoning The running engine gives off carbon monoxide a poisonous gas that can kill you 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 See a doctor You may have carbon monoxi...

Page 54: ...repair of items outside of a NorthStar approved facility is the responsibility of the buyer and not covered under warranty Transportation costs to and from service center is the responsibility of the customer 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 i...

Page 55: ...55 This page has intentionally been left blank ...

Page 56: ...56 Manufactured by Northern Tool Equipment Co Inc Burnsville MN 55306 NorthernTool com ...

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