North Star MHOTPWR manual

Proven Performance K-BAR Industries, Faribaul t, MN, 55021 MHOTPWR Installation, Operation, and Maintenance Manual HOT WATER PRESSURE WASHER : C leans dirty surfaces with high pressure hot water. To the Owner: Thank you for purchasing a Northstar ho t water pressure washer. Your machine is designed for long life, dependability, and the top performa[...]

2 Table of Contents Important Safety Instructions 2 Safety Features 12 Grounding Instructions 3 Maintenance Instructions 13-16 Extension Cords 3 Moving and Handling Instructions 17 Specifications 4 Long Term Storage 17 Machine Component Identification 5 Troubleshooting 18-19 Installation Instructions 6-9 Parts Br eakdowns 20-26 Operation Instructio[...]

3 Grounding Instructions This product must be grounded. If it should malfunction o r br eakdown, grounding provides a path of least resistance for electric current to reduce the risk of ele ctri cal shock. This product is equipped with a cord having an equipment-groundin g conductor and a grounding plu g. The plug m ust be plugged into an appropria[...]

4 Specifications Item Number 157321 157322 157325 157326 Pressure Rating 1000 psi 1000 psi 2000 psi 2000 psi Flow Output 2 gpm 2 gpm 3.5 gpm 3.5 gpm Pump Type Ceramic Triplex Plunger Ceramic Triplex Plunger Ceramic Triplex Plunger Ceramic Triplex Plunger Water Supply Standard tap water @ 20-1 00psi Standard tap water @ 20-1 00psi Standard tap water[...]

5 Machine Component Identification 157321, 157322, 157325, 157326 Description Ref # Description Ref # Description 1 Exhaust Vent 10 Control Box 19 Heating Coil 2 High Pressure Water Outlet 11 Fuel Filter 20 Garden Hose Water Inlet 3 Nozzle Holders 12 Main Power Swit ch 21 Spray Gun 4P u m p 13 Service Panel 22 Grip 5 Burner 14 Thermostat (optional)[...]

6 Installation Instructions I.) Unpack Separate and identify all components. Use the assem bly instructions in this manual for assembly. High Pressure Hose Qty-1 Wheel Retainer Qty-2 Nozzle 157321, 157325 Qty-4 157322, 157326 Qty-5 Spray Gun & Grip Qty-1 00786 Hex Wrench Qty-1 Wheel Qty-2 Pressure Washer Qty-1 Fastener Bag Qty-1[...]

7 II.) Assembly Instructions A. 1. Carefully raise th e pressure washer off the floor by using blocks or ramp s. Make sure the pressure washer is secure before proceedin g. 2. Install the two wheels as shown with grea se zerk away from frame. 3. Slide the two wheel re tainers onto the end of the axle. Tighten the set screw with the hex wrench provi[...]

8 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 **Cat Pumps Only A.) Remove shipping tape from oil fill cap B.) Make sure the oil is 1/2 way up oil si ght glass. CAT PU[...]

9 V.) Getting Started IMPORTANT: Proper initial installation of equipment will assure more satisfactory performan ce, longer service life, and lower maintenance cost. IMPORTANT: The use of a back flo w preventer (Part #222815 call 1-800-270-0 810 to order) on the water supply hose is recommend ed and may be required by local code. Make sure the pre[...]

10 Operating Instructions Follow these instructions every time you use the pressure washer. I.) Pre-Operation ; 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 lightin [...]

11 V.) Attach Nozzle Color of Nozzle: Spray Angle Used For: Red 0 Highest Impact Yellow 15 Tough Stains/ Stripping Green 25 General White 40 Light Cleaning Yellow 15 Steaming Your pressure washer is equ ipped with five nozzles. To install a nozzle simply pull back the colla r and push the nozzle into the coupler. Once the conne ction is made, pull [...]

12 3. Rotate the grip on the dual lance wand to ch ange to low pressure and start the detergent flow. 4. Spray detergent onto the surface and allow it to soak. Chemicals need time (dwell time) to work prop erly. Follow the chemical manufacturer’ s recommendations for dwell time. 5. Change back to high pressure by rotating the grip until water com[...]

13 Maintenance Instructions WARNING: Unauthorized machine modification or use of no n-approved replacement par ts may cause personal injury and/or property damage and will void the manufacturer warranty . All mechanical equipment, no matter how well designed, will need re pairs. A North Star p ressure washer is no exception. At times, a North Star [...]

14 Cleaning The Inlet Filter WARNING: Check whether dang erous chemicals have been used, and take precautions wh en handling filters. fig00531 Inlet Filter Clear Tube A.) Unscrew clear tube by hand. B.) Remove Inlet filter C.) Run water though to clean filter Checking the Tire Air Pressure A.) Remove air fill cap B.) Fill tire to 20psi (1.4bar) C.)[...]

15 Coil Descaling 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[...]

16 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. 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 cord s. 3. Let the burner fall away from the heat exchanger. 4. C[...]

17 Moving and Handling Instructions Maneuvering Your Pressure Washer 1.) Pull the handle back with both hands. 2.) Rotate the handle downward to a comfortable hei ght. 3.) Push the pressure washer forwa rd a s you walk. Lifting Your Pressure Washer 1.) To reduce risk of injury, it is recommended to use a hoist to lift this pressure washer. 2.) Lift[...]

18 Troubleshooting Guide Pressure Washer Will Not Run - No Power Causes Solutions Machine not plugged in Plug machine in GFCI tripped Make sure machine is dry. Press RESET on the GFCI Machine turned OFF Turn Pump switch ON Line circuit breaker tripped Che c k for tripped circuit breaker in building Circuit Breaker Trips During Operation Causes Solu[...]

19 HOTPWR 157321,157322,157325, 157326 Parts Breakdown[...]

20 HOTPWR- 157321,157322,157325,157326 ITEM PART# DESCRIPTION QTY MODEL 1 305410 Label, Caution Hot 1 all 2 35331 Lid, Heat Exchanger 1 all 3 38398 Insulation Cap 1 all 4 33573 Coil 1 all 5 777913 3/8” Nipple 2 all 6 30048 1/2” NPT x 3/8”: NPT Nipple 2 all 7 305208 1/2” Tee, Plated Steel 2 all 8 305236 High Temp. Limit Switch 1 157321, 1573[...]

21 HOTPWR- 157321,157322,157325,157326 ITEM PART # DESCRIPTI ON QTY MODEL 1 777165 ¼” hose 12” all 2 777834 Hose clamp 2 all 3 38584 Easy start valve 1 all 4 777411 3/8 tee 2 157321,157325 777411 3/8 tee 1 157322, 157326 5 2296 3/8 hex nipple 1 157321, 157325 6 777656 Pressure switch 1 all 305301 AR XTV pump, 2gpm 1 157321 7 305289 Cat 2SF pum[...]

22 2SFX ITEM PART # DESCRIPTION MODEL QTY 5 89551 Screw, HHC (M6x16) all 3 6 150810 Washer, Seal (M6) all 3 8 44857 Cover, Bearing, Inner all 1 10 14044 O-Ring Bearing Cover all 1 11 44859 Seal, Oil all 1 15 14488 Bearing, Ball, Inner all 1 20 45876 Rod, Connecting all 3 25 44929 Crankshaft, 3450RPM, 5/8”, 3.3mm 2SFX22ES 1 542441 Crankshaft, 3450[...]

23 ITEM PART # DESCRIPTION QTY 1 960160 O-Ring 6 2 1260162 Plug 6 3 1269050 Complete Valve 6 4 880830 O-Ring 6 5 620301 Plug 1 6 1780130 Support Ring 3 7 1260130 Gasket 3 8 1780090 Piston Guide 3 9 1780010 Pump Body 1 10 1266740 Cap 1 11 1260790 Circlip 1 12 1780550 Snap Ring 1 13 1780490 Bearing 1 14 880130 Oil Cap 1 15 1780050 Piston Ring 3 16 17[...]

24 ITEM PART # DESCRIPTION QTY 1 1322730 Head Bolt TCEI M 6x60 6 2 620301 Screw 1 7 1260160 Valve Cap 6 8 960160 O-Ring 6 9 1269050 Complete Valve 6 10 880830 O-Ring 6 11 1260140 Support Ring 3 12 1260130 Packaging Gasket 3 13 1260151 Piston Guide 3 14 1260420 O-Ring 3 15 1260440 Packaging Seal Gasket 3 16 1260460 Piston Oil Seal 3 17 1320320 Shaft[...]

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