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P r o v e n P e r f o r m a n c e
K - B A R I n d u s t r i e s , F a r i b a u l t , M N , 5 5 0 2 1
Installation, Operation, and Maintenance Manual
HOT WATER PRESSURE WASHER
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.
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
Use any North Star brand or equivalent pressure washer chemicals.
Chemicals
Adjust soap adjustment knob to regulate cleaning power.
Maintenance
Pump:
Schedule
Read and understand all manuals before operating.
Any Questions, Comments, Problems or Parts Orders
In the United States
Northstar Customer Service
Call 1-800-270-0810
Hours: Monday - Friday 7:00 AM to 5:30 PM
Saturday 7:30 AM-11:30 AM Central Time
Quick Facts
Oil: change after first 50 hours, then every 3 months or 500 hours.
MHOTPWR
ITEM NUMBER: 157321,322,325,326
SERIAL NUMBER:
HP:______ Volts:______ Amp:______ Ph:_____
RPM:____ PSI:____ GPM:____ Nozzle Size:_____
Pump:___________ Hose:______ Lance:_______
Max. Discharge Temperature:_____________
Cleans dirty surfaces with high
:
pressure hot water.
In the United Kingdom
Call 02392639752
Northern Tool and Equipment Co. (UK) Ltd.
Unit 2, Keel Close,
Portsmouth, Hants PO3 5QD, England
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Summary of Contents for North Star MHOTPWR
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Page 1: Quick Facts
HOT WATER PRESSURE WASHER 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. -
Page 2: Table Of Contents
Important Safety Instructions Grounding Instructions Extension Cords Specifications Machine Component Identification Installation Instructions Operation 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. -
Page 3: Grounding Instructions
GROUND FAULT CIRCUIT INTERRUPTER PROTECTION This pressure washer is provided with a ground fault circuit interrupter (GFCI) built into the plug of the power supply cord. This device provides additional protection from the risk of electric shock. Should replacement of the plug or cord become necessary, use only identical replacement parts that include GFCI protection. -
Page 4: Specifications
157321 Pressure Rating 1000 psi Flow Output 2 gpm Pump Type Ceramic Triplex Plunger Water Supply Standard tap water @ 20-100psi Motor Horsepower 1.5 hp BTU Output 221,400 BTU Temperature Rise 140 F Maximum 210°F Temperature Approved Fuels #1 or 2 Diesel, Kerosene, Fuel Oil Fuel Capacity 8.25 gal. -
Page 5: Machine Component Identification
Machine Component Identification 157321, 157322, 157325, 157326 Description Exhaust Vent High Pressure Water Outlet Nozzle Holders Pump Burner Fuel Fill Cap Fuel Tank Unloader Motor Ref # Description Control Box Fuel Filter Main Power Switch Service Panel Thermostat (optional) Heat Switch Safety Relief Valve Power Cord Hanger Wand Holder... -
Page 6: Installation Instructions
I.) Unpack Separate and identify all components. Use the assembly instructions in this manual for assembly. Hex Wrench Qty-1 Pressure Washer Qty-1 Installation Instructions Spray Gun & Grip Qty-1 00786 High Pressure Hose Qty-1 Fastener Bag Qty-1 Wheel Retainer Qty-2... - Page 7 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.
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Page 8: Pump Preparation
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 Sight Glass... - Page 9 Consult local heating contractors. If the pressure washer is to be used in an enclosed area, a flue must be installed to vent burner exhaust to the outside atmosphere. Be sure the flue is the same size as the burner exhaust vent on the pressure washer lid.
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Page 10: Pre-Operation
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. - Page 11 Green White Yellow 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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Page 12: Safety Features
11. Small parts should be washed in a basket so the pressure does not push them away. weight parts should be clamped down. 12. The pressure washer is set to the maximum rated pressure when it leaves the factory. There are two easy ways to change your pressure. -
Page 13: Maintenance Mode
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... -
Page 14: Changing The Pump Oil
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... - Page 15 5. Prime the pump by filling the hose with water, then place the end of the hose in the bucket. 00791 6. Run the pressure washer in cold mode for 1 to 3 hours recirculating the cleaning solution. Warning: Do not run the burner.
- Page 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. 4 Nuts 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.
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Page 17: Moving And Handling Instructions
2.) Rotate the handle downward to a comfortable height. 3.) Push the pressure washer forward as you walk. During cold weather, store the pressure washer indoors and move it outdoors before starting. Follow these instructions to prevent the pump from freezing during storage. -
Page 18: Troubleshooting Guide
Circuit Breaker Overloaded Pressure set too high Causes Partially clogged or damaged nozzle Low water flow Pressure Washer Surges Or Cycles While In Bypass Causes Leak between unloader and gun. Gun leaking internally Causes Air band not adjusted properly due to... -
Page 19: Parts Breakdowns
HOTPWR 157321,157322,157325, 157326 Parts Breakdown... - Page 20 HOTPWR- 157321,157322,157325,157326 ITEM PART# DESCRIPTION 305410 Label, Caution Hot 35331 Lid, Heat Exchanger 38398 Insulation Cap 33573 Coil 777913 3/8” Nipple 30048 1/2” NPT x 3/8”: NPT Nipple 305208 1/2” Tee, Plated Steel 305236 High Temp. Limit Switch 305422 Adjustable Thermostat, 30501 1/4”...
- Page 21 HOTPWR- 157321,157322,157325,157326 ITEM PART # DESCRIPTION 777165 ¼” hose 777834 Hose clamp 38584 Easy start valve 777411 3/8 tee 777411 3/8 tee 2296 3/8 hex nipple 777656 Pressure switch 305301 AR XTV pump, 2gpm 305289 Cat 2SF pump, 2gpm 305281 AR XMV pump, 3.5gpm 305306 Cat 2SF pump, 3.5gpm...
- Page 22 ITEM PART # DESCRIPTION 89551 Screw, HHC (M6x16) 150810 Washer, Seal (M6) 44857 Cover, Bearing, Inner 14044 O-Ring Bearing Cover 44859 Seal, Oil 14488 Bearing, Ball, Inner 45876 Rod, Connecting 44929 Crankshaft, 3450RPM, 5/8”, 3.3mm 2SFX22ES 542441 Crankshaft, 3450RPM, 3/4”, 4.7mm 2SFX30GS 45100 Crankshaft, 3450RPM, 3/4”, 5.6mm 2SFX35GS 12385...
- Page 23 AR XMV35G25D-F23 ITEM PART # DESCRIPTION 960160 O-Ring 1260162 Plug 1269050 Complete Valve 880830 O-Ring 620301 Plug 1780130 Support Ring 1260130 Gasket 1780090 Piston Guide 1780010 Pump Body 1266740 1260790 Circlip 1780550 Snap Ring 1780490 Bearing 880130 Oil Cap 1780050 Piston Ring 1780510 O-Ring...
- Page 24 AR XTV2G15EBA-F8 AR XTV3G16D-F8 ITEM PART # DESCRIPTION 1322730 Head Bolt TCEI M6x60 620301 Screw 1260160 Valve Cap 960160 O-Ring 1269050 Complete Valve 880830 O-Ring 1260140 Support Ring 1260130 Packaging Gasket 1260151 Piston Guide 1260420 O-Ring 1260440 Packaging Seal Gasket 1260460 Piston Oil Seal 1320320...
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