North Star M157304E User's Manual
Contents
1. TERMINAL DP CONTACTOR BLOC BLK BLK e i de BLK ON OFF SWITCH FIG02395 192. S Seat Discharge All Models 3 20 547048 TNM Rod Connecting Al Modes 3 166 46764 S Vake Ali Models 6 25 545653 CM Crankshaf 1725 RPM SE 20mm OSELSMIST 1 167 46865 S Spring AlModes 6 545144 CM Crankshat 3450 RPM AE 30mm 15ESMSST 1 168 543968 PVDF Retainer Spring Al Models 6 545765 CM Crankshaft 3450 RPM SS 40mm 2ESMST 1 172 142807 NBR O Ring Plug 900 All Models 3 545145 CM Crankshati 3450 RPM 58 56mm Z ESMST 1 174 46750 BB Piug Valve M22x15 Ali Models 3 21 13832 STL Bearing Bal Al Modes 1 185 542073 BB Head Mett wModular Reguator Body AN Models 1 32 547061 RTP Cap Oil Filer 01 4 All Models 1 193 542406 STZP Soen HSH M x60 Ali Models 8 33 14179 NER O Ring Ol Filer Cap 700 Al Models 1 197 BB Nu Swivel Dr FGHIF Al Models 1 ag 9241 Gauge Bubble O wiGasket All Models 1 198 BB Fitting 36 NPT Ai Modols 1 38 4429 N R Gasket Flat Flex Ol Gauge 800 A Models 1 199 46489 Screen inlet Ali Models 1 48 44842 NY Drain Ali Models 1 255 30516 STZP Assy Bolt Mount All Modes 1 49 14179 NER O Ring Drain Plug 700 Ali Modes 1 34100 STZP SctewHH 38 16UNCx1 28 4 53 54407 AL All Models 1 20960 STZP Washer Flat 38 4 64 46220 CM Ph Crosshead Ali Models 3 3002 STZP Lockwasher DEI 4 65 54240 BRCP Rod Phingor All Models 3 6108 Lubricant Antisalzo 1 70 47215 NER Seal Ol 700 Ali Models 3 34050 STL Key 3163 1627 HO 1 90 54
3. the inlet pressure of the pump must not exceed 115 psi 8 bar M E Always use a flexible rubber hose for your water supply Do not use rigid piping M F Do not pump flammable liquids or liquids containing incompatible chemicals or solvents III Before Starting WARNING Check hoses fittings wand gun and cords daily for signs of wear cracks and looseness and replace as required 1 Connect water supply hose to the garden hose connector located on the side of the unit 2 Connect high pressure hose to quick connect outlet on front of the machine 3 Connect spray gun to high pressure hose 4 If detergents will be used only use detergents intended for pressure washers Follow instructions on the detergent container IV To Start DANGER Do not point the spray wand at yourself or at any person Bodily injury may result from water under high pressure WARNING Wear eye ear hand foot and skin protection at all times while operating this pressure washer IMPORTANT The water must be turned on before starting Running the pump dry will cause damage and void warranty 1 Turn water supply ON 2 Squeeze the trigger to allow air to purge from the system this step goes faster with the pressure nozzle removed V Attach Nozzle Nozzle Red f 0 Highest Impact Yellow 15 Tough Stains Stripping Color of Nozzle Spray Angle Light Cleaning Low pressure Chemical Application Le dd
4. 2403 CC Plunger M16x27 Al Models 3 300 33053 NBR Kit Seal Inckis 98 106 121 125 All Models 1 98 46730 NBR Washer Seal 900 Ali Modes 3 310 33057 N R Ki Valve All Modais 00 542405 S Retainer Phunger MGx35 Al Models 3 cite 160 161 163 164 186 167 168 172 100 46233 NY Relainer Seal Al Modas 3 400 Regalo Modular See indiv Parts A Modes 1 106 48222 NER Seal LPS wS Spg 850 Ali Models 3 446 13069 NBR O Ring Discharge Fitting Ali Models 1 120 46436 BB Case Seal Ali Models 3 460 107681 BB Fitting Discharge DE NPTM All Models 1 121 12876 NBR O Ring Seal Case 700 Al Models 3 Ratics are optional items See Tech Bulletins 002 024 036 043 066 074 083 086 and 094 for additional information Date of latest production change MATERIAL CODES Not Part of Part Number ALsAluminum BB Braes BBCPBrass Chrome Plated CC Ceramic CM Chrome moly NBR Medium Nitrile Buna N NY sNylon PVDF Polyvinylidere Floride RTP Reinforced Composite 5230488 STL Steel STZP Steel Zinc Plated TNM Special High Strength NOTE Discard Key which may come standard with most motors and use only the key included in this kit Wiring Diagram 157304 1 TERMINAL DP CONTACTOR BLOC BLK BLK kd BLK L2 L Se wer MOTOR L1 Ius WHT A ON OFF SWITCH FIG02297 157303 1
5. 6910 CoverBearing D M 46798 Cap Oil Filler Domed 14179 O Ring Oil Filler Cap Gauge Oil Bubble gt 5CP3120 i OR o TITI VALVE KIT 33060 ITEM PART QTY 163 17547 164 46658 166 46429 167 43750 168 46583 172 17549 SEAL KIT 33629 ITEM PART 96 46730 106 43316 121 13978 127 43319 DESCRIPTION Washer Keyhole M18 90 46884 Plunger M50 98 46730 Washer Seal 100 106 120 121 127 128 3 139 1 163 164 166 167 43750 Spring LB 168 46583 Retainer Spring 6 172 17549 O Ring Valve Plug 6 L 173 48365 Back up ring Valve Plug 6 174 4590 Plug Valve CC 6 Bolt HSH M8x70 Manifold Head 8 Plug Discharge 3 8 lt 17 157303 Pump Breakdown EXPLODED VIEW PLUNGER PUMP MODELS February 2005 2DX05ELS MIST 2DX15ES MIST 2DX20ES MIST 2DX27ES MIST PARTS LIST ITEM PN MATL DESCRIPTION MODELUSED QTY ITEM PIN MATL DESCRIPTION MODEL USED QTY 5 617003 STZP Screw HHC WSW M amp xt2 Al Models 3 125 46240 NBR Seal HPS wS AlModels 3 8 46225 NL Cover Bearing Ali Models 1 160 13965 NBR O Ring Iniet Valve Seat 700 All Modes 3 10 Wu NBR O Ring Bearing Cover 700 Ali Models 1 161 545077 S Sest inlet All Models 3 11 55337 NER Seal Ol 700 Ali Models 1 163 19285 NBR ORing Seat 700 All Models 3 15 14488 STL Bearing Ball All Models 1 164 545178
6. AE 30 17 00z 0 41L 3 Replace oil drain plug Non Detergent Oil order Cat Item 22158 pump oil 4 Fill pump with Cat Items 22158 pump oil 5 Fill half way up the sight glass Oil Cap Oil Cap remove tape remove tape T Oil Sight Glass Oil Drain Plug Oil Drain Plug Long Term Storage During cold weather store the pressure washer indoors and move it outdoors before starting the motor Follow these instructions to prevent the pump from freezing during storage Storage Before you store the pressure washer make sure you do the following 1 Unplug the power cord from the pressure washer 2 Disconnect high pressure and garden hose Winter Storage RV Antifreeze Items needed 12 piece of garden hose or equivalent funnel and RV antifreeze approximately 6 oz 1 Follow the storage instructions listed above 2 Attach the garden hose with funnel to the pump inlet see Funnel illustration 3 Pour RV antifreeze into the funnel turn on the motor until antifreeze comes out the pump outlet 4 Drain all water from the high pressure hose Depress trigger EHI ROSE on gun and drain all water out of gun lance K Water Inlet 11 Troubleshooting Guide Pressure Washer Will Not Run At All No Power Solutions Machine t
7. M157304E 157303 amp 157304 Manual ITEM NUMBER Proven Performance TRIAL MUTT NORTH ERH TOOL amp EQUIPMENT m Se e Nozzle E Pump Hose Lance Max Discharge Temperature Installation Operation and Maintenance Manual PRESSURE WASHER Cleans dirty surfaces with high pressure water To the Owner Thank you for purchasing a Northstar pressure washer Your machine is designed for long life dependability and the top performance you demand Take time now to read through this manual so you better understand the machine s operation maintenance and safety precautions Everyone who operates this machine must read and understand this manual The time you take now will prolong your machine s life and prepare you for its safe operation Enjoy the exceptional performance of your Northstar pressure washer the industry leader The manufacturer reserves the right to make improvements in design and or changes in specifications at any time without incurring any obligation to install them on units previously sold Quick Facts Pump Oil Pump is shipped with oil Change oil plug and check pump oil level before starting Use SAE 30 Non detergent pump oil item 4043 or Cat Pump oil items 22158 for oil changes Make sure your water is clean and particle free Do not allow water to freeze in the pump hose or spray gun Chemicals Adjust soap adjustment knob to regulate cleaning power Schedule Read and understand all manu
8. Step 3 Locate terminal block inside the electrical housing and intended to be hard wired into your electrical system The attach wires like colors should be across from each other following instructions will help you to hard wire this unit Electrical Requirements Item Number Circuit Rating 157303 115V 20A 157304 230V 30A O WARNING Make sure to use a dedicated circuit that includes a GFCI Consult local electrical code for connection reguirements A 157304 is shown in the following steps the 157303 gets wired the exact same way Step 1 Using a 3 8 wrench remove the roof and the top of the electrical housing Front panel not shown for clairity Step 4 Clamp cord in strain relief nut thru the bottom of the panel by turning nut clockwise Step 5 Re attach the top of the electrical housing and the roof Step 2 Feed power cord through the strain relief nut on the bottom of the unit into the electrical housing POWER SUPPLY CORD OR CONDUIT Operating Instructions Read and understand the entire manual before operating the pressure washer Follow these instructions every time you use the pressure washer I Pre Operation M A Position the machine for easy access to all controls M B Position the machine on a solid surface with less than a three degree slope and so it is protected from external damage M C Make sure ambient lig
9. Your pressure washer is equipped with five nozzles To install a nozzle simply pull back the collar and push the nozzle into the coupler Once the connection is made pull on the nozzle to assure a tight connection Lance ga Collar Coupler CORRECT EEE WARNING Make sure the nozzle is correctly inserted The nozzle may become a projectile if not inserted correctly Do not attempt to use different types of nozzles that may not fit the coupler VI Turn the pump switch ON 1 Make sure the hose is not kinked A kinked hose will provide insufficient water supply to the pump and will reduce its life To Clean WARNING Wear eye ear hand foot and skin protection at all times while operating this pressure washer DANGER Do not point the spray wand at yourself or at any person Bodily injury may result from water under high pressure IMPORTANT Your spray gun is equipped with a built in trigger safety latch to guard against accidental trigger actuation and potentially dangerous high pressure spray Rotate the safety latch to the locked position when not spraying NOTE Your pressure washer is equipped with a low pressure chemical injector You do not need to use chemicals for every job however the proper chemical used for the proper application can speed up cleaning jobs tremendously WARNING Only use North Star pressure washer chemicals or chemicals specifically formulated for pressure washers Follow the chemical manufac
10. als before operating Any Questions Comments Problems or Parts Orders In the United States In the United Kingdom Northstar Customer Service Call 02392639752 Call 1 800 270 0810 Northern Tool and Equipment Co UK Ltd Hours Monday Friday 7 00 AM to 5 30 PM Unit 2 Keel Close Saturday 7 30 AM 11 30 AM Central Time Portsmouth Hants PO3 5OD England Table of Contents Important Safety Instructions Grounding Instructions Maintenance Instructions Long Term Storage Installation Instructions Parts Breakdowns Operating Instructions Wiring Diagram Troubleshooting 8 10 Important Safety Instructions WARNING Risk of Injection or Injury to Persons Do Not Direct Discharge Stream at Persons Do not use a hose if exterior damage is evident Risk of explosion Do not spray flammable liquids Do not operate in a flammable environment CAUTION Gun kicks back Hold with both hands To reduce the risk of injury read operating instructions carefully before use WARNING When using this product basic precautions should always be followed including the following 1 Read all the instructions before using the product 2 To reduce the risk of injury close supervision is necessary when the product is used near children Do not allow irresponsible use by children Always stop the product and bleed pressures before leaving unattended disconnecting hoses or servicing the pump 3 Know how to stop the product and b
11. ange your pressure turn the unloader knob found inside the machine counter clockwise WARNING Do not alter the unloader valve s maximum pressure Excess pressures could cause serious injury and or pump damage Any alteration other than turning the adjustment knob will void your warranty To Stop 1 If detergents were used draw clean water through the detergent inlet line to purge detergent Failure to do so may clog the chemical injector 2 Turn the pump switch OFF 3 Turn OFF the water supply 4 Squeeze the trigger to relieve the system pressure Maintenance Instructions WARNING Unauthorized machine modification or use of non approved replacement parts may cause personal injury and or property damage and will void the manufacturer warranty All mechanical equipment no matter how well designed will need repairs A North Star pressure washer is no exception At times a North Star pressure washer may be inoperable because repairs are required North Star Customer Service will assist in these repairs as needed but if an inoperable pressure washer creates a major expense to your business then we strongly recommend the following 1 Have someone on staff who is trained in the operation of the pressure washer and is capable of making minor repairs and performing all preventative maintenance procedures as outlined in the provided manuals 2 Keep a stock of recommended service parts for maintenance and minor repairs Re
12. commended Service Parts List Following is a list of the service parts we recommend stocking Pump Oil 4043 Chemical Injector 31935 Spray Gun 319153 50 Pressure Hose 32276 Maintenance Mode Before performing any maintenance on the pressure washer it must be placed in maintenance mode A Turn off water supply B Bleed water from system C Disconnect power by unplugging power cord and or flipping circuit breaker OFF Maintenance Schedule What to Check When To Check Inlet Filter Check for Wear Bolts Each Use Check for Loose Bolts Cleaning The Inlet Filter WARNING Check whether dangerous chemicals have been used and take precautions when handling filters A Unscrew inlet filter cap B Remove Inlet filter C Run water though to clean filter Checking the Hoses WARNING Do not use a finger or skin to check for leaks Escaping fluid under pressure has sufficient force to penetrate the skin causing serious injury Do not operate the pressure washer if the hose is cracked worn or leaking A Check all hoses for leaks B Check all hoses of worn areas HF EL R Bad Water Leak g 1 Bn Bad Wire Mesh 00426 10 Changing The Pump Oil Quantities Of Fluid Change oil after first 50 hours then every 3 months or 500 Type of Fluid Cat 2DX15ES SAE 30 8 50z 0 25L hours 1 R il drain pl rue de CAT 5CP3120 S
13. erpn 1 s 78557 Promp 1 6 7780 Ret T 7 3 T i s 7s Ba i 10 225 Rubber bumper 4 i 7884 fop electrical housing 1 _ 14 33556 Terminal block decal 1 15 3409 ffrerminalblock 16 778152_DP Contactor r 17 77855 Toggle switch 1 18 7834 Panel decal 1 28 33562 fa bushing kal bal A kal bal bal EA i D 2 35169 3 0 7 9 8 4 777378 Di x 18 hose assembly 777645 Ww F npt x hose barb i e 2 Gun with lance 3 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 61 62 63 64 65 67 70 14 RevE 157303 Parts Breakdown MMW FIGO2315 15 157303 RevE Parts Breakdown QTY 7 R n B R T i a plc 1 2 3 4 5 7 10 11 14 15 16 17 18 19 20 21 22 23 24 25 3 Lo 4 RSS i ME S 8 ae ES 0 O7 Ke Kr 7 0 4 14 33556 Terminal block decal 15 34200 i 16 Lt RE 4 JD 20 L arp 7 4 22 9 eS 3 M 36290 5 777645 Je F NPT x hose barb 1 2 black inlet hose 24 BE meme gj 29 30 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 52 53 16 157304 Pump Breakdown DESCRIPTION 2 30057 Key M6 1 1 5 96031 Screw SemHCM8xi6 8 4
14. h pressure accessories meet or exceed your machine s limits Do not set the pressure relief valve above the machine s limit 13 Do not move this machine by pulling on the hose Do not use the pump to support other items of equipment that impose unacceptable loads on the pump Do not attempt to use this machine as a prop 14 To reduce risk of injury do not secure the spray gun open Your spray gun is equipped with a built in trigger safety latch to guard against accidental trigger release and potentially dangerous high pressure spray Rotate the safety latch to the locked position when not spraying 15 Do not clean this machine with its own spray Cleaning should be done with a damp sponge with the electrical power turned OFF Grounding Instructions This product must be connected to a grounded metal permanent wiring system or an equipment grounding conductor must be run with the circuit conductors and connected to the equipment grounding terminal or lead on the product SAVE THESE INSTRUCTIONS Machine Component Identification 157303 157304 Ref Inlet Filter On Off Switch High Pressure Outlet 6 Mor figd2288 Installation Instructions Unpack Separate and identify all components Use the assembly instructions in this manual for assembly I LANCE NOZZLE BRACKET HOSE HOOK FIGO2350 HARDWARE BAG Separate and identify all component
15. hting is sufficient for the surface you are cleaning to be seen with ease Use artificial light if needed M D Check hoses fittings wand trigger gun and electrical cords for signs of wear cracks and looseness and replace as required M E Check and clean the nozzle orifice M F Check and clean the water inlet screen and filter M G Read entire manual especially the important safety instructions listed on page 2 M H Check and maintain proper oil levels in the pump II Check Your Water Supply M A Make sure the water supply is clean Debris can cause excess pump wear and reduce performance M B An insufficient water supply will damage your pump Make sure the water supply is steady and is 20 over the rated flow of your pump Use a stopwatch to time how long it takes to fill a 5 gallon bucket with your garden hose Example If the rated flow is 3gpm Then required flow 3 x 1 20 2 3 6gpm 5gallons 3 6gpm 1 39 minutes 1 39min x 60sec min 83 seconds Therefore you must be able to fill a 5 gallon bucket in 83 seconds or faster M C 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 M D Never use a reservoir tank as a water source This pressure washer is designed for a pressurized water source such as a city water faucet Sucking water out of a tank may cause pump cavitation and damage to your pump However
16. leed pressures quickly Be thoroughly familiar with the controls 4 Stay alert watch what you are doing 5 Do not operate the product when fatigued or under the influence of alcohol or drugs Never smoke while operating this machine 6 Keep operating area clear of all persons 7 Do not overreach or stand on unstable support Keep good footing and balance at all times Wear footwear capable of maintaining a good grip on wet surfaces Do not place the machine on soft or unstable ground 8 Follow the maintenance instructions specified in all manuals Do not run machine without sufficient lubrication or sufficient water to cool the pump 9 Wear safety glasses gloves face protection and appropriate clothing when operating the machine 10 Do not operate this machine with broken or missing parts Never alter the manufacturer s original design or deactivate any safety device on the machine 11 Risk of exposure to dangerous chemicals Wear protective gloves when handling and cleaning with chemicals Follow the chemical manufacturer s directions Understand all safety hazards and first aid for all chemicals being used Check whether dangerous chemicals have been used and take any precautions that may have been recommended by the supplier of these chemicals when cleaning filters Do not pump highly abrasive fluids or use with incompatible chemicals or solvents 12 Know the pressure and temperature limits of your machine Be sure all hig
17. s Use the assembly instructions in this manual for assembly HARDWARE BAG RUBBER FEET 5X GROMMETS 252 E 5X NOZZLES Ze e 1X MANUAL 8X A FLANGE NUT Q T d 8X A X FLANGE BOLT Sis 6X X 1 5 LAG BOLT 1X STRAINER a O BRAIDED HOSE Below is included in hardware bag of 15 7304 Only 1X CHEMICAL INJECTOR FIGO2345 II Assembly Instructions A 1 To spray chemical insert the chemical injector into the quick connect oulet of the pressure washer as shown 2 Connect the clear hose to the chemical strainer and to the inlet of the chemical injector This is inside the base unit on the 157303 chemical injector can remained installed at all times Have hose exit base as shown below 3 Install the pressure hose onto the chemical injector as shown for 157304 Install on quick connect outlet on 157303 4 Connect the other end of the pressure hose to the spray gun as shown 5 Connect the lance extension to the spray gun and insert the proper nozzle into the lance end 6 Make sure all plumbing connections are tight Chemical Hose Exit for 157303 7 Install four rubber feet onto base with four 1 4 x 3 4 flange bolts and four flange nuts Use the same bolts to install cross members when installing the rubber feet III RUBBER FEET F160235 III Wiring Instructions This pressure washer is shipped without a power cord and is
18. turer s recommendations Understand all safety precautions and first aid for all chemicals 1 Insert chemical suction line and strainer into a container of detergent 2 Completely open the chemical control knob located on the chemical injector 3 Insert the chemical application nozzle Black 4 Turn the chemical control knob to adjust the chemical concentration Spray detergent onto the surface and allow it to soak Chemicals need time dwell time to work properly Follow the chemical manufacturer s recommendations for dwell time 5 Change back to high pressure by inserting the nozzle with the desired spray angle Hold the lance with two hands have a sturdy stance Point lance at dirty surface and squeeze trigger Wash from the bottom to the top using side to side motions This washes away heavy dirt and allows the detergent to soak as you work toward the top Use the width of the spray pattern to wash in a wide path Overlap spray paths for complete coverage 10 The nozzle should be 12 to 24 from the work closer for tough areas OND Max Chemical Ratio is 13 1 Caution Be careful on painted or delicate surfaces the pressure may damage the surface if the nozzle is too close 11 Small parts should be washed in a basket so the pressure does not push them away Larger light weight parts should be clamped down 12 The pressure washer is set to the maximum rated pressure when it leaves the factory To ch
19. urned OFF Turn Pump switch ON Line circuit breaker tripped Check for tripped circuit breaker in building Circuit Breaker Trips Pressure Washer Runs But Will Not Spray Water Causes Trigger released Squeeze trigger Clogged nozzle Clean nozzle orifice Low Pressure Causes Low water flow Make sure the water supply is more than 4 gpm Partially clogged or damaged nozzle Clean or replace nozzle Pressure Washer Runs But Surges Or Cycles While In Bypass 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 Poor Or No Detergent Supply Causes Soap control knob set too low Inadequate detergent supply High pressure hose too long Chemical strainer or hose clogged Clogged injector Clean injector check valve or replace injector Run clean water through the injector after each use Any Questions Comments Problems or Parts Orders In the United States In the United Kingdom North Star Customer Service Call 02392639752 Call 1 800 270 0810 Northern Tool and Equipment Co UK Ltd Hours Monday Friday 7 00 AM to 5 30 PM Unit 2 Keel Close Saturday 7 30 AM 11 30 AM Central Time Portsmouth Hants PO3 5QD England 12 RevE 157304 Parts Breakdown a a N x e ce T 157304 RevE Parts Breakdown 3 7954 Bue T 3 555 Waming decal 1 4 7559 R
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