MA157204G ITEM NUMBERS: A157204, A157205, A157207, A157304, A157598, A1572042, A1572081, A1572082, A1572091, A1572092, A157134, A157136, A1572041, A1571107, A1571108, A1571109 Owner’s Manual Pressure Washer Pump: For high pressure cleaning machines. WARNING Read this manual. Serious injury or death can result if safety instructions are not followed. Pump is shipped with oil. Must check oil level before use. - Remove shipping plug and install vented fill cap.
Hazard Signal Word Definitions 2
Table of Contents Important Safety Rules ........................................................................................................................................................... 4 Pump Oil Cap and Pump Component Identification ............................................................................................................... 6 Operation Instructions .................................................................................................................................
Important Safety Rules WARNING 1.) Read owner's manual completely. Serious injury or death can result if safety instructions are not followed. You must be 16 or older to operate this machine. Keep untrained people away. 2.) Skin puncture hazard. High pressure fluid can inject under skin resulting in serious injury including amputation. Do not direct spray at people or animals. -If skin injection happens, seek IMMEDIATE surgical treatment. -Do not check for leaks with hand.
Important Safety Rules WARNING 5.) Risk of exposure to dangerous chemicals. Serious injury or death can result if chemical manufacturer instructions are not followed. -Wear protective gloves when handling and cleaning with chemicals. -Understand all safety hazards and first aid for all chemicals being used. -When cleaning filters, check if chemicals have been used and take any precautions that are recommended by the chemical manufacturer.
Pump Oil Cap and Pump Component Identification 6
Operation Instructions Water Supply 1.) Make sure the water supply is clean. Debris can cause excess pump wear and reduce performance. 2.) 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 5gallon bucket with your garden hose. The bucket must fill faster than the times listed in the table below.
Operation Instructions Start-Up Instructions 1. Attach garden hose or tank to water inlet. 2. Attach pressure hose to water outlet and gun. 3. Attach spray gun to lance. 4. Turn water supply ON. 5. Squeeze trigger to purge air from pump. 6. Insert nozzle. 7. Start engine/motor. Shut-Down Instructions 1. Turn engine OFF. 2. Turn water supply OFF. 3. Squeeze trigger to relieve system pressure. 4. Remove garden hose (if applicable). 5. Remove pressure hose. 6. Turn fuel valve OFF (if equipped).
Operation Instructions Applying Chemicals 1.) 2.) 3.) 4.) Install the black nozzle to spray chemicals onto the cleaning surface. Start the pressure washer according to the start-up instructions. Submerge the chemical hose in cleaning solution. Squeeze the spray gun trigger. The chemical injector will draw the chemical into the water stream. 5.) Apply chemicals evenly onto the cleaning surface. Allow the chemicals to react with the dirt, then clean at high pressure with green nozzle. 6.
Maintenance and Storage Maintenance Mode Before performing any maintenance on the pressure washer, it must be placed in maintenance mode. 1.) Turn off engine. 2.) Turn off water supply. 3.) Squeeze trigger to relieve system pressure. 4.) Shut off fuel valve. 5.) Unplug spark plug wire from spark plug, (see engine owners’ manual). Belt Tension Some general rules of belt tension are: 1.) Ideal tension is the lowest tension without belt slippage. 2.) Over tightening decreases belt and bearing life. 3.
Maintenance and Storage Pump Oil Change 1.) Place a suitable container below the pump to catch used oil, then remove the oil fill cap and oil drain plug. 2.) Allow the used oil to drain completely, then reinstall the drain plug and tighten securely. 3.) Please dispose of used oil in a manner that is compatible with the environment. We suggest you take used oil in a sealed container to your local recycling center or service station for reclamation.
Maintenance and Storage Long Term Storage Follow the engine owner’s manual for storing the engine. Winter Storage Protect your pump, hose, and gun from freezing. Items needed: 12” piece of garden hose or equivalent, funnel and RV antifreeze (approximately 6 oz.) 1.) Follow the storage instructions listed above. 2.) Disconnect spark plug cable. Make sure the engine start switch is OFF, and the fuel valve is OFF. 3.) Attach the garden hose with funnel to the pump inlet (see illustration). 4.
Troubleshooting Problem Engine will not start Low/Surging pressure or no water flow No chemical injection SOLUTION: A,B SOLUTION: C,D,E,F,G,H SOLUTION: I,J,K,L Cause Solution A- Low oil shutdown B- Engine starting instructions not followed C- Insufficient water supply D- Plugged pump inlet filter E- Wrong nozzle F- Plugged nozzle G- Worn nozzle H- Leak in pressure hose I- Wrong nozzle J- Back pressure from extra long discharge hose K- Leak in chemical siphon hose L- Chemical strainer not submerged See
Parts Explosion Rev.
Parts Explosion Rev.
Pump Exploded Views – A157204 Model RK1528HN 16
Pump Exploded Views – A157304 Model 5CP3120 17
Pump Exploded Views - A157304 (cont’d) 18
Pump Exploded Views – A157205 Model RKA45G40HN 19
Pump Exploded Views – A157207 Model TWS5050S 20
Pump Exploded Views - A157207 (cont’d) Ref # 1 2 3 4 5 6 7 9 Part # CO2811008400 CO3200000700 CO3202001500 CO2811008600 CO3218034500 CO3200000400 CO3609017900 CO1210015300 10 CO3009014400 11 CO3604001700 12 CO1802017700 13 14 15 16 17 18 19 20 21 22 23 24 26 27 28 29 30 31 CO1205004300 CO3202031600 CO1210002100 CO0009028900 CO0600005400 CO2811008200 CO0202004200 CO2812009400 CO1210072700 CO0009017000 CO2409010900 CO3011002600 CO1210034900 CO0402026900 CO3609003200 CO1210004800 CO3201002700 CO320000
Pump Exploded Views – A157598 Model TWS7040S 22
Pump Exploded Views - A157598 (cont’d) Ref # 1 2 3 4 5 6 7 9 Part # CO2811008400 CO3200000700 CO3202001500 CO2811008600 CO3218034500 CO3200000400 CO3609017900 CO1210015300 10 CO3009014400 11 CO3604001700 12 CO1802017700 13 14 15 16 17 18 19 20 21 22 23 24 26 27 28 29 30 31 CO1205004300 CO3202031600 CO1210002100 CO0009028900 CO0600005400 CO2811008200 CO0202004200 CO2812009400 CO1210072700 CO0009017000 CO2409010900 CO3011002600 CO1210034900 CO0402026900 CO3609003200 CO1210004800 CO3201002700 CO320000
Pump Exploded Views – A1572041 Model NSB3540 24
Pump Exploded Views – A1572041 (cont’d) Ref # 1 2 3 4 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 Part # CO3200000700 CO2811008400 CO3609001400 CO3202001800 CO1220003000 CO1210004600 CO3009008700 See #101 CO1802017700 CO1205002500 CO1210004800 CO3202031200 CO3609008800 CO1004001200 CO0402032900 CO1210038600 CO3019001100 CO0438006900 Not Available CO3200005100 CO0600004800 CO2811008000 CO0202002000 CO2812003800 CO1210005500 CO2409004400 CO3011001400 Description Cap, 3/8" Washer (7
Pump Exploded Views – A1572042 Model NSSHFB5030 26
Pump Exploded Views – A1572042 (cont’d) Ref # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 20 21 Part # Not Available CO3202011200 Not Available CO2811008400 CO3200000700 CO2811008600 CO3202001500 CO3202031500 CO1210004800 CO1220007200 See #100 CO1802017700 See #100 CO3009008700 CO1210004600 See #101 CO0009035200 22 See #101 23 24 25 26 27 28 30 31 32 CO0009035300 CO1210015600 CO0019012800 CO3201002600 CO1210033300 CO3019003300 Not Available Not Available See #103 33 34 35 36 Description Screw Plug, 1/4" Pump
Pump Exploded Views – A1572081 Model NSB4540 28
Pump Exploded Views – A1572081 (cont’d) Ref # Part # 1 2 3 4 Not Available CO3202011200 Not Available CO2811008400 5 6 7 8 9 10 11 12 CO3200000700 CO2811008600 CO3202001500 CO3202031500 CO1210004800 CO1220003000 CO1205002500 CO1802017700 13 Not Available 14 15 20 Description Qty Ref # Part # Screw Plug, 1/4" Pump Manifold Washer (16.7 x 22 x 1.5) 8 1 1 1 37 38 39 40 CO2811008200 CO0202002200 CO2812009400 CO1210003900 Washer (8.4 x 16 x 1.5) Ceramic Bushing Washer O-ring (1.78 x 7.
Pump Exploded Views – A1572082 Model NSSHFB6030 30
Pump Exploded Views – A1572082 (cont’d) Ref # Part # Qty Ref # Part # 1 2 3 4 Not Available CO3202011200 Not Available CO2811008400 Screw Plug, 1/4" Pump Manifold Washer (16.7 x 22 x 1.5) 8 1 1 1 37 38 39 40 CO2811008200 CO0202002400 CO2812009400 CO1210003900 Washer (8.4 x 16 x 1.5) Ceramic Bushing Washer O-ring (1.78 x 7.66) 3 3 3 3 5 CO3200000700 Plug, 1/8" 1 41 CO0009017000 Anti-Extr.
Pump Exploded Views – A1572091 Model NSB5050 32
Pump Exploded Views – A1572091 (cont’d) Ref # 1 2 3 4 5 6 7 9 10 11 12 13 14 15 16 17 18 Part # CO2811008400 CO3200000700 CO3202001500 CO2811008600 Not Available CO3200000400 Not Available Not Available CO3009014400 CO3604001700 CO1802017700 CO1205004300 CO3202031600 CO1210002100 CO0009028900 CO0600005400 CO2811008200 Description Washer (16.7 x 22 x 1.5) Plug, 3/8" Cap, G1/2 Washer (10.
Pump Exploded Views – A1572092 Model NSSHF7035 34
Pump Exploded Views – A1572092 (cont’d) Ref # 1 2 3 4 Part # CO3202011200 Description Plug, 1/4" Qty Ref # Not Available Not Available CO2811008600 Screw Pump Manifold Washer (21.2 x 27 x 1.5) 5 CO3202001500 6 CO2811007900 7 8 1 8 1 1 38 39 40 41 1 42 Not Available Piston 3 1 43 Not Available Gudgeon Pin 3 1 6 6 6 6 6 44 45 46 CO0205007100 CO1210034900 9 10 11 12 CO3202011500 CO3202031700 CO0009029000 CO1210004800 CO1205003800 CO1802024400 Plug, 1/2" Washer (27.7 x 32.5 x 1.
Pump Exploded Views – A157134 Model RW4040S 36
Pump Exploded Views - A157134 (cont’d) Ref # 1 2 3 4 5 6 7 8 Part # 2811 0084 3200 0007 3202 0015 2811 0086 3218 0393 3609 0039 3200 0004 12100046 9 3009 0087 10 3604 0017 11 1802 0177 12 1205 0025 13 14 1220 0030 1210 0048 15 3202 0315 16 17 18 19 20 21 22 23 24 25 26 27 28 0403 0168 3609 0157 1009 0242 1210 0451 3201 0026 3019 0033 1210 0448 0440 0031 3200 0051 0600 0054 2811 0082 0202 0022 2812 0094 Description Washer Plug Plug Washer Pump Manifold Screw Plug O-Ring Suction/Delivery Valve
Pump Exploded Views – A157136 Model 5CP4120CSS VALVE KIT-77026 ITEM 160 161 162 163 164 166 167 168 169 172 PART # 11346 49918 49844 49845 49917 46429 43750 49847 44565 26089 QTY 3 3 3 3 3 6 6 3 3 3 PART # 11346 49918 49844 49845 49917 QTY 3 3 3 3 3 SEAL KIT-76979 ITEM 98 106 121 125 128 ITEM 2 5 8 10 11 15 20 25 30 31 32 33 37 38 40 48 49 50 51 53 64 65 70 75 88 90 98 99 PART # 30057 126542 46910 14028 43222 14480 48742 49773 49776 127409 46798 14179 92241 44428 125824 25625 23170 46940 14044 48617
Pump Exploded Views – A1571107 ITEM 2 5 8 10 11 15 20 25 30 31 32 33 37 38 40 48 49 50 51 53 64 65 70 PART # CA30057 CA96031 CA46910 CA14028 CA43222 CA14480 CA46743 Not Available CA48224 CA828710 CA46798 CA14179 CA43987 CA44428 CA92519 CA25625 CA23170 CA46940 CA14044 Not Available CA46746 CA46747 CA46838 75 88 CA43900 CA45697 DESCRIPTION Key (M6) Screw, Sem HC M8x16 Cover Bearing O-Ring \, Bearing Cover Seal, Oil, Crankshaft Bearing Rod, Connecting Assembly Crankshaft, Dual End Cover, Bearing Blind Pro
Pump Exploded Views – A1571108 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 PART # Not Available GP99319200 GP98204200 GP90384100 GP36200366 GP36200176 GP94737600 GP36202551 GP90384700 GP98222500 GP36711501 GP99180700 GP50150074 GP44211801 GP90409700 GP91833100 GP90159500 Not Available GP98210300 Not Available GP91489200 GP63050566 GP63020022 GP90392000 DESCRIPTION Manifold, Nickel Plated 18mm Head Bolt, M8x65 Plug, G 1/4x9 O-ring, Ø 17.13x5.
Pump Exploded Views – A1571109 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 PART # Not Available GP99319200 GP98204200 GP90384100 GP36200366 GP36200176 GP94737600 GP36202551 GP90384700 GP98222500 GP36711501 GP99180700 GP50150074 GP44211801 GP90409700 GP91833100 GP90159500 Not Available GP98210300 Not Available GP91489200 GP63050566 GP63020022 GP90392000 DESCRIPTION Manifold, Nickel Plated 18mm Head Bolt, M8x65 Plug, G 1/4x9 O-ring, Ø 17.13x5.
Limited Warranty Dear Valued Customer: The NorthStar Product you just purchased is built with the finest material and craftsmanship. Use this product properly and enjoy the benefits from its high performance. By purchasing a NorthStar product, you show a desire for quality and durability. Like all mechanical equipment this unit requires a due amount of care. Treat this unit like the high-quality piece of machinery it is. Neglect and improper handling may impair its performance.
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Assembled by Northern Tool & Equipment Company, Inc. Burnsville, MN 55306 NorthernTool.
