The supply hose should have a 3/4” inside diameter (ID) and be no longer than 50 feet. 2. The water supply pressure must be a minimum of 20 pounds per square inch (PSI) and a maximum of 125 PSI. The flow rate must be at least 3 gallons per minute (GPM). 3. Use a water softener if there is high mineral content in the water of your area. High mineral content causes excessive scale build-up in the coil/heat exchanger. 4. Un-roll the hose reel and then connect one end of the high pressure discharge

/Del. Valve Seat 6 73 1802 0279 Spring 1 6 3604 0017 Suct. /Del. Valve 6 74 1227 0051 Ring Nut 1 7 1802 0177 Spring 6 75 3622 0049 Stop Adjustable Nut 1 8 1205 0025 Suct. /Del. Valve Cage 6 76 0009 0367 Spring Spacer 1 9 1210 0048 O-Ring 6 77 2409 0148 Rod 1 10 3202 0315 Plug + O-Ring 6 78 0009 0365 Ring 1 11 3609 0088 Screw 3 79 1210 0613 O-Ring 1 12 1004 0012 Crankcase Flange 1 80 1210 0614 O-Ring 1 13 0402 0329 Aluminum Cover 1 81 0009 0366 Ring 1 14 1210 0386 O-Ring 1 82 0204 0071 Bushing 1

RING 3 32 90.3572.00 O-RING 3 33 52.0400.09 PISTON 3 34 96.7008.00 WASHER 3 VALVE KIT SEAL KIT 123 130 ITEM PART # QTY ITEM PART # QTY 4 90.3841.00 6 40 90.3612.00 1 5 36.2003.66 6 41 44.0800.70 1 6 36.2001.76 6 42 52.2166.70 1 7 94.7376.00 6 43 90.2622.00 1 8 36.2025.51 6 44 90.2620.00 1 45 51.1000.51 1 51 90.2617.00 1 ITEM PART # DESCRIPTION QTY 35 92.2216.00 NUT 3 40 90.3612.00 O-RING 3 41 44.0800.70 PACKING RETAINER 3 42 52.2166.70 INTERMEDIATE RING 3 43 90.2622.00 PACKING 3 44 90.2620.00 PA

Filter Water Drain 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 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. Attach a sh

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 will 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 performa

The pressure pump for this equipment is powered by a gasoline internal combustion engine and the water is heated by a kerosene/fuel-oil fired, open flame burner. WARNING – READ THIS MANUAL READ and UNDERSTAND this Owner's Manual and the Engine Owner's Manual completely before attempting to set up and use the pressure washer! Failure to properly set up, operate, and maintain this pressure washer could result in serious injury or death to operator or bystanders. WARNING – SPECIAL HAZARDS CO Poison

Depress trigger on gun and drain all water out of gun/lance. RV Antifreeze Funnel Hose Water Inlet Problem Solution Motor will not start SOLUTION: A,B Low/Surging pressure or no water flow SOLUTION: C,D,E,F,G,H No chemical injection SOLUTION: I,J,K,L Cause Solution A- Tripped GFCI cord Reset GFCI cord B- Tripped motor relay Reset motor C- Insufficient water supply See water supply section of this manual D- Plugged pump inlet filter See maintenance section of this manual E- Wrong nozzle Make sure

Any Questions, Comments, Problems or Parts Orders Call NorthStar Product Support 1-800-270-0810 Engine is shipped without oil. - Before starting engine, fill engine oil. - See engine manual for engine oil requirements. Pump is shipped with oil. - Remove shipping plug and install vented fill cap. (Comet Pumps) - Remove shipping tape from pump oil fill cap. (Cat Pumps) - See pump oil cap section of this manual. Closely inspect all components. -If you have damaged components then: Contact the freig

-Different chemicals may interact dangerously with each other, always follow chemical manufacturer directions before switching chemicals. -Calculate the correct amount of chemical to mix, dispose of excess chemical per the manufacturer instructions. -Never spray flammable liquids. WARNING strainer diluted chemical pump inlet pump outlet pump 10 Maintenance and Storage Maintenance Mode Before performing any maintenance on the pressure washer, it must be placed in maintenance mode. 1.) Turn off en

III.) Before Starting WARNING: Make sure all switches and controls are in the OFF position prior to plugging in the cord. DO NOT stand in water while plugging or unplugging electrical cord. WARNING: Use a UL recognized receptacle protected by a ground fault interrupter and extension cord of proper voltage and amperage at all times. 1. Connect electrical cord to specified NEMA receptacle. See page 4. WARNING: Check hoses, fittings, wand, trigger gun and fuel connections daily for signs of wear, c