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North Star M157309M.1 Owner's manual

Manual is about: HOT WATER/STEAM PRESSURE WASHER – 2750 PSI / 2.5 GPM Portable Outdoor-Use Only

Summary of M157309M.1

  • Page 1

    1 m157309m.1 owner’s manual instructions for set-up, operation, maintenance & storage h ot w ater /s team p ressure w asher – 2750 psi / 2.5 gpm portable outdoor-use only this pressure washer produces both cold and hot water high-pressure spray as well as steam spray. Cleaning chemicals may be incor...

  • Page 2

    Hazard signal word definitions 2 equipment protection quick facts inspect upon delivery stop! Closely inspect to make sure no components are missing or damaged. See the “assembly and initial set-up” section for instructions on whom to contact to report missing or damaged parts. Fill with engine oil ...

  • Page 3

    Table of contents 3 about your pressure washer ........................................................................................................4 specifications .......................................................................................................................................

  • Page 4

    About your pressure washer 4 thank you for purchasing a northstar hot water pressure washer! Your machine is designed for long life, dependability, and the top performance you demand. This pressure washer is designed to: 1) produce a high-pressure steam spray or water spray (heated or unheated) -- u...

  • Page 5

    Specifications 5 model model # 157309 flow output pressure rating 2750 psi flow rate 2.5 gpm maximum temperature 250 ° f dimensions / components length 44” width 27” height 42” weight (fueled) 400 lbs. Pump type comet bxd engine displacement 205cc high pressure discharge hose 3/8” x 50’ chemical inj...

  • Page 6

    Component identification 6 ref # description ref # description ref # description 1 high pressure relief valve 10 engine 19 control panel 2 exhaust vent 11 control panel 20 circuit breaker 3 heating coil 12 high pressure outlet 21 heat switch 4 garden hose water inlet 13 fuel filter 22 thermostat 5 p...

  • Page 7: Reference Guide

    Component identification cont’d 7 reference guide 1. High pressure relief valve a safety valve that relieves pressure; to eliminate over pressurization. 2. Exhaust vent provides an out for burner exhaust gases. 3. Heating coil steel piping wound together with an inlet for incoming cold water and out...

  • Page 8: On-Product Warning Labels

    Safety labeling 8 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. On-product warning labels part n...

  • Page 9

    Special equipment safety features 9 high pressure relief valve warning: if the high-pressure relief valve ever discharges water, turn the engine off and do not use the machine. Call product support at 1-800-270-0810. This unit is equipped with a high-pressure relief valve, which acts as a backup saf...

  • Page 10

    Assembly and initial set-up 10 wheel qty-4 hardware bag high pressure hose qty-1 spray gun qty-1 handle qty-1 pressure washer 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 th...

  • Page 11

    Assembly and initial set-up 11 gun hook qty-2 part # 38509 5/16-18 x 2” flange bolt qty-4 part # 82018 wheel retainers qty-4 part # 305200 grommets qty-6 part # 35198 hose hook qty-1 part # 38510 nozzles qty-6 part # 38531 & 778198 5/16 flat washer qty-4 part # 82021 figure 3 5/16-18 flange nut qty-...

  • Page 12

    Assembly and initial set-up 12 step 2. Assembly you must assemble your pressure washer before it can be used. Refer to figure 4 and follow the steps listed below: step 1. Install handle with four (4) 5/16-18 x 2” flange bolts through base and handle and secure with four (4) 5/16-18 flange nuts and w...

  • Page 13

    Assembly and initial set-up 13 step 4. Install one (1) gun hook on left side of pressure washer base (below engine). Screw hook directly into base until tight. Step 5. Install grommets and nozzles into holes in control panel. Step 6. Install wheels: warning : the pressure washer is heavy. It can cru...

  • Page 14

    Assembly and initial set-up 14 prepare engine fill the engine with oil . Note: the engine is shipped without oil. Refer to the engine manual to locate oil-fill port and for instructions on filling. Use the oil grade and quantity specified in the engine manual. Step 4. Battery installation install a ...

  • Page 15

    Assembly and initial set-up 15 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. • ...

  • Page 16

    Moving and handling 16 warning the pressures 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 and handling moving your pressure washer around 1. Use the handle to manually move ...

  • Page 17

    Before each use 17 follow the steps below prior to each use of the pressure washer. Steps to follow before each use step 1. Check equipment step 2. Add fuel(s) step 3. Select suitable worksite step 1. Check equipment check/add pump oil check/add pump oil . Caution: never run the pump without suffici...

  • Page 18

    Before each use 18 1) check hoses, fittings, wand, trigger gun and connections for signs of wear, cracks, looseness, or leaks. Replace as required. 2) check and clean the nozzle orifice. 3) clean inlet filter. (see maintenance instructions) inspect fuel system always inspect (engine and burner) fuel...

  • Page 19

    Before each use 19 2) fill fuel tank outdoors – never indoors. Fuel vapors can ignite if they collect inside an enclosure and explosion can result. 3) stay away from all sources of heat, sparks, and flames. Do not smoke. 4) never pump fuel directly into the gas tank or burner at a gas station – it c...

  • Page 20

    Before each use 20 step 3. Select suitable outdoor worksite before using the pressure washer, you must understand the criteria for selecting a suitable location for operation. Note that this pressure washer is for outdoor use only. Warning : you must choose a suitable site for operating your pressur...

  • Page 21

    Before each use 21 2. Away from combustible dust, liquids, or vapors do not locate and use the pressure washer in the presence of flammable vapors, dust, gases, or other potentially combustible materials. Burner is an open flame, which can ignite airborne dusts and flammable vapors. Operate only whe...

  • Page 22

    Operation 22 after you have checked and fueled the equipment and positioned it in a suitable worksite, it is time to start your pressure washer. The following are the procedures necessary for safe, successful operation of your pressure washer. Warning carefully read and make sure you understand all ...

  • Page 23

    Operation 23 attach garden hose to water supply acquire a suitable garden hose and attach to the water supply. 1. Acquire a suitable garden hose: a. 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”. ...

  • Page 24

    Operation 24 3. Release the collar, making sure it springs back and re-seats to its original (non-retracted) position. (figure 8b). Check the connection by pulling on the hose to ensure a positive connection. Select spray nozzle your pressure washer is equipped with five high-pressure nozzles and on...

  • Page 25

    Operation 25 1. Make sure the engine is off and the hose line depressurized. 2. To install the nozzle, pull the collar back and twist the nozzle firmly into the coupler on the end of the wand. (figure 9a) 3. Release the collar, making sure it springs back and re-seats to its original (non-retracted)...

  • Page 26

    Operation 26 the introduction of cleaning chemicals via the chemical injection point affords the following advantages: • it protects the pump from damage because no chemical passes through the pump. Caution: certain chemicals, such as bleach or those containing muriatic acid, will cause pump damage ...

  • Page 27

    Operation 27 step 3. Spraying safety rules for operation before starting the pressure washer, review the following general safety rules for operation: conditions for use know how to stop. Be thoroughly familiar with proper use of the equipment and all controls and connections. Know how to stop the p...

  • Page 28

    Operation 28 lock trigger safety latch when not spraying . Spray gun is equipped with a built-in trigger safety latch to guard against accidental trigger release. Rotate safety latch to the locked position when not spraying. Leaving unattended . Always turn off the pressure washer and relieve system...

  • Page 29

    Operation 29 start engine start the engine to power the pump. 1. Make sure water supply is connected and primed. Caution: running the pump dry will cause damage and void the warranty. 2. To prevent accidental spraying, engage the safety latch on spray gun trigger by rotating it to the locked positio...

  • Page 30

    Operation 30 3. Make sure the engine throttle is all the way open. If it is not, the engine will not supply adequate voltage to the burner, resulting in smoke coming from the heat exchanger during operation. Turn the heat switch on and adjust the thermostat to the desired temperature. (for steam spr...

  • Page 31

    Operation 31 - if spraying from an elevated surface, use fall protection because spray gun kickback can propel you off the elevated surface. When spraying from a ladder or scaffolding, ensure it is firmly anchored from sway or tip-over. - be aware of puddles and slippery surfaces. Ensure there is ad...

  • Page 32

    Operation 32 8. The pressure washer is set and locked to the maximum rated pressure when it leaves the factory. To reduce the pressure, turn the unloader knob counterclockwise. (see figure 11 below) warning : do not attempt to alter the unloader valve’s maximum pressure. Excess pressure could cause ...

  • Page 33

    Operation 33 step 4. Stopping stop the engine using the following steps: warning: never disconnect the high-pressure hose from the pump or spray gun while the system is pressurized. Relieve pressure by squeezing the spray gun trigger after the engine is turned off. 1. If the heater was used, turn he...

  • Page 34

    Storage 34 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 freezing conditions. O ...

  • Page 35

    Storage 35 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. Using a wrench, disconnect the plumbing that connects to the pump outlet. 3. Obtain the materials you will need: • 12” piece of garden hose or equivalent ...

  • Page 36

    Storage 36 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...

  • Page 37

    Burner adjustment 37 oil burner adjustment (only needed if white exhaust smoke appears) the oil burner is preset and performance tested at the factory (elevation 1100 feet). Different altitudes may require a one-time initial burner adjustment. Caution: if white smoke appears from the burner exhaust ...

  • Page 38

    Burner adjustment 38 5. Loosen the locking screw and rotate the air band closed until black smoke appears from the burner exhaust vent. Note which number the arrow now points to. 6. Slowly open the air band until white smoke just starts to appear. 7. Turn air band halfway back to the black smoke pos...

  • Page 39

    Maintenance & repair 39 inspect and maintain your pressure washer as specified below in order to keep it in safe and optimal working order. Follow all safety rules and recommended maintenance instructions. Warning always shut off water supply, bleed water pressure, turn off engine and disconnect the...

  • Page 40

    Maintenance & repair 40 • replacement parts . If a part needs replacement, only use factory approved repair parts. Replacement parts that do not meet specifications may result in a safety hazard or poor operation of the pressure washer and will void the warranty. Keep pressure washer clean keep pres...

  • Page 41

    Maintenance & repair 41 clean inlet filter clean the inlet filter before each use. Warning : when cleaning filters, check whether dangerous chemicals have been used with the filter and take any precautions that may be recommended by the manufacturer of these chemicals. Always dispose of hazardous fl...

  • Page 42

    Maintenance & repair 42 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. Re...

  • Page 43

    Maintenance & repair 43 maintain burner’s fuel filter/water separator drain water from burner’s filter bowl as needed, and replace filter after every 500 hours of use or as needed. 1) after each use of the burner, visually check the filter bowl. If any water has accumulated, drain it via the water d...

  • Page 44

    Maintenance & repair 44 cleaning flow switch 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 sw...

  • Page 45

    Maintenance & repair 45 3) unthread the removable outlet fitting with the swivel still attached from the flow switch assembly 4) remove the shuttle 5) clean the inside of the brass flow switch body and the shuttle with water and a soft brush 6) insert the shuttle into the brass flow switch in the or...

  • Page 46

    Maintenance & repair 46 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 tubing. These deposits will...

  • Page 47

    Maintenance & repair 47 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 underneath the heat exchanger. 3) c...

  • Page 48

    Maintenance & repair 48 4) reset the spacing as shown below in figure 24. 1/16” 1/8” 5/16” electrodes figure 24.

  • Page 49

    Maintenance & repair 49 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...

  • Page 50

    Troubleshooting 50 engine will not start causes solutions low oil shutdown fill engine with the adequate amount of oil. Cold engine choke engine to start. No fuel add gas to engine, make sure fuel shutoff valve is open. Dead battery recharge/replace battery. Spark plug wire not attached attach spark...

  • Page 51

    Parts explosion – rev m.1 51.

  • Page 52

    Parts explosion – rev m.1 52 item part# description qty item part# description qty 1 777904 quick coupler, 1/4” fpt 1 35 38578 t-handle knob 1 4 22622 gun grip 1 38 30754 leather washer, .28 id 1.00 od 4 5 779168 gun trigger assembly 1 39 777946 tank and base weldment 1 6 313107 coupler, 3/8” fpt 1 ...

  • Page 53

    Wiring diagram – rev m.1 53 ref # description part number wh1 burner wire harness 777661 wh2 engine/control panel wire harness 783421 yw1 yellow lead wire - switch to relay 777663 rw1 red lead wire – circuit breaker to relay 777664 bw1 black battery cable 777108 wn wire nut 5265 led red led with wir...

  • Page 54

    Control panel wiring diagram – rev m.1 54 red led thermostat 12v relay switch circuit breaker.

  • Page 55

    Burner wiring diagram – rev m.1 55.

  • Page 56

    Summary of important safety information 56 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. Warning carefully read...

  • Page 57

    Summary of important safety information 57 o when connecting the battery, connect the red cable to the positive terminal first. O when disconnecting the battery, disconnect the black cable from the negative terminal first • acid/skin contact. If battery acid contacts skin or clothing, flush immediat...

  • Page 58

    Summary of important safety information 58 safety – operation pre-start • review safety rules . Before each use of this pressure washer, review the “rules for safe operation.” failure to follow these rules may result in serious injury or death. • know how to stop. Be thoroughly familiar with proper ...

  • Page 59

    Summary of important safety information 59 liquid under the skin. Injection injury can result in blood poisoning and/or severe tissue damage leading to infection, gangrene and possibly amputation. • prevent surface damage & flying debris – surfaces being sprayed must be strong enough to withstand hi...

  • Page 60

    Summary of important safety information 60 • other exhaust dangers . This product contains or emits chemicals known to the state of california to cause cancer, birth defects or other reproductive harm. Avoid inhalation of exhaust. After use • cool engine before storing. Let engine cool for at least ...

  • Page 61: Limited Warranty

    Limited warranty 61 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 al...

  • Page 62

    62 manufactured by northern tool + equipment co., 2800 southcross drive west p.O. Box 1499 burnsville, mn 55337-0499 ®.