Hot Water Pressure Washer Installation, Operation, And Maintenance Manual

ManualsBrandsNorth Star ManualsPressure WasherMHOTPWR

Proven Performance

K-BAR Industries, Faribault, MN, 55021

MHOTPWR

Installation, Operation, and Maintenance Manual

HOT WATER PRESSURE WASHER: Cleans dirty surfaces with high

pressure hot water.

To the Owner:

Thank you for purchasing a Northstar hot water 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 hot water 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 (item# 22158) for oil

changes.

Water Make sure your water flow is 20% higher than the pressure washer’s flow rate.

Make sure your water is clean and particle free.

Storage Do not allow water to freeze in the pump, hose, coil, or spray gun.

Spraying

Chemicals

Use any North Star brand or equivalent pressure washer chemicals.

Adjust soap adjustment knob to regulate cleaning power.

Maintenance

Schedule

Pump: Oil: change after first 50 hours, then every 3 months or 500 hours.

Read and understand all manuals 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 5QD, England

ITEM NUMBER: 157321,322,325,326

SERIAL NUMBER:

HP:______ Volts:______ Amp:______ Ph:_____

RPM:____ PSI:____ GPM:____ Nozzle Size:_____

Pump:___________ Hose:______ Lance:_______

Max. Dischar

eTem

erature:

_____________

Summary of content (27 pages)

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MHOTPWR ITEM NUMBER: 157321,322,325,326 SERIAL NUMBER: Proven Performance K-BAR Industries, Faribault, MN, 55021 HP:______ Volts:______ Amp:______ Ph:_____ RPM:____ PSI:____ GPM:____ Nozzle Size:_____ Pump:___________ Hose:______ Lance:_______ Max. Discharge Temperature:_____________ Installation, Operation, and Maintenance Manual HOT WATER PRESSURE WASHER: Cleans dirty surfaces with high pressure hot water. To the Owner: Thank you for purchasing a Northstar hot water pressure washer.
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Table of Contents Important Safety Instructions Grounding Instructions Extension Cords Specifications Machine Component Identification Installation Instructions Operation Instructions 2 3 3 4 5 6-9 10-12 Safety Features Maintenance Instructions Moving and Handling Instructions Long Term Storage Troubleshooting 12 13-16 17 17 18-19 Parts Breakdowns Wiring Diagram 20-26 27-28 Important Safety Instructions WARNING -Risk of Injection or Injury to Persons - Do Not Direct Discharge Stream at Persons.
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Grounding Instructions This product must be grounded. If it should malfunction or breakdown, grounding provides a path of least resistance for electric current to reduce the risk of electrical shock. This product is equipped with a cord having an equipment-grounding conductor and a grounding plug. The plug must be plugged into an appropriate outlet that is properly installed and grounded in accordance with all local codes and ordinances.
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Specifications Item Number Pressure Rating Flow Output Pump Type Water Supply Motor Horsepower BTU Output Temperature Rise Maximum Temperature Approved Fuels Fuel Capacity Discharge Hose Power Requirements NEMA Receptacles Volts Amps Hertz Phase Dimensions Length Width Height Ship Weight 157321 157322 157325 157326 1000 psi 2 gpm Ceramic Triplex Plunger Standard tap water @ 20-100psi 1.5 hp 221,400 BTU 140 F 2000 psi 3.
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Machine Component Identification 157321, 157322, 157325, 157326 1 2 3 4 5 6 7 8 9 Description Exhaust Vent High Pressure Water Outlet Nozzle Holders Pump Burner Fuel Fill Cap Fuel Tank Unloader Motor Ref # 10 11 12 13 14 15 16 17 18 Description Control Box Fuel Filter Main Power Switch Service Panel Thermostat (optional) Heat Switch Safety Relief Valve Power Cord Hanger Wand Holder Ref # 19 20 21 22 23 Description Heating Coil Garden Hose Water Inlet Spray Gun Grip Dual Lance Wand 5
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Installation Instructions I.) Unpack Separate and identify all components. Use the assembly instructions in this manual for assembly.
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II.) Assembly Instructions A. 1. Carefully raise the pressure washer off the floor by using blocks or ramps. Make sure the pressure washer is secure before proceeding. 2. Install the two wheels as shown with grease zerk away from frame. 3. Slide the two wheel retainers onto the end of the axle. Tighten the set screw with the hex wrench provided in the parts bag . Description Qty. Wheel Wheel Retainer 2 2 Axle Wheel Retainer Wheel B. 1. Install the pressure hose onto the pressure washer as shown. 2.
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III.) Pump Preparation *AR Pumps Only A.) Remove the shipping plug from the oil fill hole. B.) Screw the vented dipstick into oil fill hole. C.) Check oil level in the pump. Make sure it is 1/2 way up the sight glass . AR PUMPS Oil Fill Hole Quantities Of Fluid Pump AR XTV AR XMV Cat 2SFX Type of Fluid SAE 30* SAE 30* SAE 30** QTY 8.0oz (0.24L) 14.0oz (0.41L) 11.83oz (0.35L) *SAE Non-Detergent Oil (order Pump Oil Item# 4043) **SAE Non-Detergent (order Cat Pump Oil Item# 22158) IV.
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V.) Getting Started IMPORTANT: Proper initial installation of equipment will assure more satisfactory performance, longer service life, and lower maintenance cost. IMPORTANT: The use of a back flow preventer (Part #222815 call 1-800-270-0810 to order) on the water supply hose is recommended and may be required by local code. Make sure the pressure washer is on a level surface and in a protected area where it is not readily influenced by outside forces such as strong winds, freezing temperatures, rain, etc.
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Operating Instructions Follow these instructions every time you use the pressure washer. I.) Pre-Operation III.) Before Starting ; A.) Position the machine for easy access to all controls. ; B.) Position the machine on a solid surface, with less than a three degree slope, and so it is protected from external damage. ; C.) Position the machine so that ambient lighting is sufficient for the surface you are cleaning to be seen with ease. Use artificial light if needed. ; D.
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V.) Attach Nozzle Nozzle Color of Nozzle: Red Yellow Spray Angle 0 15 Green White Yellow 25 40 15 Used For: Highest Impact Tough Stains/ Stripping General Light Cleaning Steaming 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.
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3. Rotate the grip on the dual lance wand to change to low pressure and start the detergent flow. b. Or, turn the black unloader knob counter clockwise. Grip Black Unloader Knob Safety Latch 4. 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 rotating the grip until water comes out the right lance only. 6.
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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.
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Cleaning The Inlet Filter Checking the Hoses WARNING: Check whether dangerous chemicals have been used, and take precautions when handling filters. 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.
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Coil Descaling Coil Desooting In hard water areas, scale build-up within the heating coil will occur. Scale deposits will decrease the water temperature rise and may eventually clog the heating coil. 1. Mix scale remover in a 5 gallon bucket and elevate the bucket so it is higher than the pump. 2. Attach the high pressure hose to the high pressure water outlet on the machine, do not hook up the spray gun. 3. Place the other end of the high pressure hose in the 5 gallon bucket. 4.
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Electrodes On a yearly basis the electrodes should be inspected and any necessary adjustments made. 1. Tip the machine back until it rests on the frame. 4. Clean off carbon deposits which may have accumulated on the tips of the electrodes. 5. Reset the spacing as shown below. Electrodes 4 Nuts 1/8” 1/16” 00793 2. 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. 3. Let the burner fall away from the heat exchanger.
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Moving and Handling Instructions Maneuvering Your Pressure Washer Lifting Your Pressure Washer 1.) Pull the handle back with both hands. 2.) Rotate the handle downward to a comfortable height. 3.) Push the pressure washer forward as you walk. 1.) To reduce risk of injury, it is recommended to use a hoist to lift this pressure washer. 2.) Lift from lifting point Handle Lift Here Long Term Storage During cold weather, store the pressure washer indoors and move it outdoors before starting.
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Troubleshooting Guide Pressure Washer Will Not Run - No Power Solutions Causes Machine not plugged in GFCI tripped Machine turned OFF Line circuit breaker tripped Plug machine in Make sure machine is dry. Press RESET on the GFCI Turn Pump switch ON Check for tripped circuit breaker in building Circuit Breaker Trips During Operation Solutions Causes Voltage too low Circuit Breaker Overloaded Check the voltage Make sure to use NEMA specified receptacle.
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HOTPWR 157321,157322,157325, 157326 Parts Breakdown 19
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HOTPWR- 157321,157322,157325,157326 ITEM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 PART# 305410 35331 38398 33573 777913 30048 305208 305236 305422 30501 33387 777658 305230 305248 305427 36180 22502 305267 777166 777167 30823 777122 305239 777345 32308 777340 777834 777345 31911 31914 313108 30507 2234 319152 313107 2227 777247 2212 ST12 30388 777165 31934 DESCRIPTION Label, Caution Hot Lid, Heat Exchanger Insulation Cap Coil 3/8” Nipple 1/2” NP
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HOTPWR- 157321,157322,157325,157326 ITEM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 PART # 777165 777834 38584 777411 777411 2296 777656 305301 305289 305281 305306 777410 777410 777749 37549 35104 22392 777839 777836 35918 2264 777119 38626 35169 38596 777340 777347 32808 777840 DESCRIPTION ¼” hose Hose clamp Easy start valve 3/8 tee 3/8 tee 3/8 hex nipple Pressure switch AR XTV pump, 2gpm Cat 2SF pump, 2gpm AR XMV pump, 3.5gpm Cat 2SF pump, 3.
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2SFX ITEM 5 6 8 10 11 15 20 25 26 27 32 33 37 38 48 49 53 64 65 69 70 100 106 110 124 125 134 135 PART # 89551 150810 44857 14044 44859 14488 45876 44929 542441 45100 12385 15710 45690 14179 43987 44428 44842 14179 541018 16948 540073 20017 25461 44869 44876 44874 45847 43245 45854 44871 DESCRIPTION MODEL Screw, HHC (M6x16) all Washer, Seal (M6) all Cover, Bearing, Inner all O-Ring Bearing Cover all Seal, Oil all Bearing, Ball, Inner all Rod, Connecting all Crankshaft, 3450RPM, 5/8”, 3.
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AR XMV35G25D-F23 ITEM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 27 28 30 PART # 960160 1260162 1269050 880830 620301 1780130 1260130 1780090 1780010 1266740 1260790 1780550 1780490 880130 1780050 1780510 1200430 1780010 1780040 1780060 480480 1260091 1780070 1260100 1260110 740290 880530 1260460 DESCRIPTION O-Ring Plug Complete Valve O-Ring Plug Support Ring Gasket Piston Guide Pump Body Cap Circlip Snap Ring Bearing Oil Cap Piston Ring O-Ring Screw Complete Cover Con Rod Guiding
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AR XTV2G15EBA-F8 AR XTV3G16D-F8 ITEM 1 2 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 36 37 38 39 40 PART # 1322730 620301 1260160 960160 1269050 880830 1260140 1260130 1260151 1260420 1260440 1260460 1320320 1320360 1260790 1320370 1320330 1320010 880130 1260110 1260100 1260120 480480 1260091 1260070 1260080 1260760 1321030 1260060 1260040 740290 880530 1320021 DESCRIPTION Head Bolt TCEI M6x60 Screw Valve Cap O-Ring Complete Valve O-Ring Support Ring Packaging Gasket Piston
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