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Pump Parts List 

 Cat 4SPX 

 

 

 

46 

 
 
 
 

Ref# 

P/N 

DESCRIPTION 

QTY 

 

Ref# 

P/N 

DESCRIPTION 

QTY 

Not Available 

SCREW 

188 

Not Available

 

SCREW 

CA547084 

BEARING COVER 

249 

CA31643 

ADAPTER MOUNT ASSEMBLY 

10 

CA14041 

O-RING, BEARING COVER 

401 

CA547797 

HANDLE, ADJUSTING 

11 

CA125351 

OIL SEAL 

402 

CA547798 

ADJUSTING CAP 

15 

Not Available

 

INNER BALL BEARING 

403 

CA548671 

LOCK NUT 

20 

CA547020 

CONNECTING ROD 

404 

CA548675 

SCREW, SET 

24 

Not Available

 

OIL PLUG CAP 

408 

CA32094 

PRESSURE SPRING 

25 

Not Available

 

CRANKSHAFT 

410 

CA549352 

SPRING RETAINER 

26 

Not Available

 

RING, RETAINING 

412 

CA45694 

PISTON STEM 

27 

CA15710 

BALL BEARING 

414 

CA20184 

BACK UP RING 

32 

CA547961 

CAP 

415 

CA14190 

O-RING, PISTON STEM 

33 

CA14179 

O-RING, 70D (FOR OIL FILTER 
CAP) 

423 

CA46249 

RETAINER VALVE 

37 

CA92241 

GAUGE, BUBBLE OIL W/GASKET 

424 

CA13966 

O-RING, VALVE RETAINER (OUTER) 

38 

CA44428 

GASKET, FLAT FLEX OIL GAUGE 

425 

CA547799 

PISTON RETAINER 

48 

CA44842 

DRAIN PLUG 

426 

CA46250 

WASHER 

49 

CA14179 

O-RING, 70D (FOR DRAIN PLUG) 

428 

CA26133 

O-RING, 80D (FOR PISTON 
RETAINER) 

53 

Not Available

 

CRANKCASE 

429 

CA17399 

O-RING, VALVE RETAINER (INNER) 

64 

CA16948 

CROSSHEAD PIN 

435 

CA547800 

VALVE 

65 

CA548872 

PLUNGER ROD 

436 

CA49664 

SEAT 

69 

CA126259 

WASHER, OIL SEAL 

437 

CA13963 

O-RING, 70D (FOR SEAT) 

70 

CA25301 

OIL SEAL 

438 

CA46254 

SEAT, CHECK VALVE 

90 

CA547091 

PLUNGER 

439 

CA13963 

O-RING, 70D (FOR CHECK VALVE 
SEAT) 

98 

CA46730 

WASHER 

443 

CA547826 

VALVE, CHECK 

99 

CA542405 

RETAINER, PLUNGER 

444 

CA45924 

SPRING 

100 

CA44869 

RETAINER, SEAL 

 

446 

CA26133 

O-RING, 70D (FOR BODY) 

106 

CA45188 

SEAL 

 

469 

CA7332 

CHEMICAL FIXED INJECTOR 

120 

CA49942 

SEAL CASE 

 

470 

CA76179 

UNLOADER REPAIR KIT INCLDS: 
412, 414, 415, 423, 424, 425, 426, 
429, 431, 435, 436, 437 

121 

CA13977 

O-RING FOR SEAL CASE 

 

471 

CA76146 

CHECK VALVE KIT INCLDS: 438, 
439, 443, 444, 446 

122 

CA49943 

RING, SUPPORT 

 

472 

Not Available

 

BARB 

125 

CA49824 

SEAL 

 

476 

See # 483

 

O-RING, BARB 

160 

CA17428 

O-RING, INLET 

 

477 

See # 483

 

BALL 

161 

CA547077 

SEAT, INLET 

 

478 

See # 483 

SPRING 

162 

CA48361 

BACK-UP RING 

 

479 

Not Available

 

ORIFICE 

163 

CA43358 

O-RING 

 

480 

Not Available

 

BODY 

164 

CA547076 

SEAT, DISCHARGE 

 

483 

CA76176 

KIT, REPAIR INCLDS: 476, 477, 478 

166 

CA547098 

VALVE 

 

Kit #1 

CA76977 

SEAL KIT INCLDS: 98, 106, 121, 125 

167 

CA46865 

SPRING 

 

Kit #2 

CA76976 

VALVE KIT INCLDS: 160, 161, 162, 
163, 164, 166, 167, 168, 169, 172 

168 

CA543988 

RETAINER, SPRING, INLET 

 

Kit #3 

CA31767 

O-RING KIT INCLDS: 414, 415, 424, 
429, 437, 439, 446) 

169 

CA49764 

RETAINER, SPRING, 
DISCHARGE 

 

 

 

 

 

172 

CA142807 

O-RING FOR PLUG 

 

 

 

 

 

174 

CA547104 

PLUG, VALVE W/O-RING 

 

 

 

 

 

185 

Not Available

 

HEAD, MANIFOLD W/UNLOADER 
BODY 

 

 

 

 

 

Summary of Contents for A157121

Page 1: ...werhorse Pumps See pump oil cap section of this manual Closely inspect all components If you have damaged components then Contact the freight company that delivered the unit and file a claim If you ha...

Page 2: ...Hazard Signal Word Definitions 2...

Page 3: ...ctions 7 9 Water Supply 7 Start Up Shut Down Instructions 8 Applying Chemicals 9 Maintenance and Storage 10 12 Maintenance Mode and Maintenance Schedule 10 Pump Oil Change 11 Long Term Storage 12 Wint...

Page 4: ...ding fuel stop the engine and keep heat sparks and flame away Do not add fuel when engine is running or still hot No smoking near engine Do not pump fuel directly into engine at gas station Static cha...

Page 5: ...excess chemical per the manufacturer instructions Never spray flammable liquids 6 Risk of electrocution Electricity can kill you Keep water away from electrical outlets and electrical devices 7 Flyin...

Page 6: ...Pump Oil Cap and Pump Component Identification 6...

Page 7: ...72 seconds A1578171 100 seconds A1578181 84 seconds A1578203 72 seconds A157594 63 seconds A1577110 100 seconds A15782030 50 seconds A1578201 72 seconds A157121 100 seconds A157123 100 seconds A157124...

Page 8: ...zard 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...

Page 9: ...strainer until all the chemical is purged from the system Risk of exposure to dangerous chemicals Serious injury or death can result if chemical manufacturer instructions are not followed Wear protect...

Page 10: ...What to Do Inlet Filter Each Use Visually inspect and clean inlet filter with clear water Pressure Hose Each Use Visually inspect pressure hose and hose couplings Replace hose if any of the following...

Page 11: ...ake used oil in a sealed container to your local recycling center or service station for reclamation Do not throw it in the trash pour it on the ground or down the drain 4 With the pump in a level pos...

Page 12: ...cap with the arrow on the breather plug tube insert it and twist it to secure Reconnect the spark plug Long Term Storage Follow the engine owner s manual for storing the engine Winter Storage Protect...

Page 13: ...ter supply section of this manual D Plugged pump inlet filter See maintenance section of this manual E Wrong nozzle Make sure high pressure nozzle is being used F Plugged nozzle Remove nozzle check fo...

Page 14: ...eyed 3 0 A1578181 3200 3 0 8 9hp Gas engine 1 keyed 3 5 A1578203 4000 3 5 11 13hp Gas engine 1 keyed 3 5 A157594 4000 4 0 15hp Gas engine 1 keyed 4 0 A1577110 3000 2 5 5 6 5hp Gas engine 3 4 keyed 3 0...

Page 15: ...Parts Explosions Rev X 2 15...

Page 16: ...796161 1 8 NPT X 1 4 Hose Barb Fitting 1 A157121 5 777834 1 4 Hose Clamp 2 A15782030 A157121 7123 7124 7127 8181 8201 777119 3 4 Hose Clamp 2 A157130 6 777165 1 4 Braided Chem Hos Sold by foot 1 2ft A...

Page 17: ...210 0475 O Ring 1 42 0009 0267 Ring 3 5 3230 0031 Sensor 1 43 5026 0260 Piston Kit 3 6 1802 0217 Spring 1 44 1210 0391 O Ring 1 7 1002 0116 Suction Filter 1 45 1210 0463 O Ring 1 8 2803 0395 Quick Cou...

Page 18: ...Valve Kit 1 63 0438 0081 Ball Bearing 1 26 3009 0136 Regulation Valve Seal 1 64 0031 0012 Pump Crankshaft 1 27 1210 0170 O Ring 1 65 0019 0112 Oil Seal 1 28 3003 0032 Ball 1 66 0403 0156 Pump Crankca...

Page 19: ...00 OIL DIP STICK 1 26 92 2216 00 NUT 3 27 96 7008 00 WASHER 3 28 51 0400 09 PLUNGER 15mm 3 29 90 3572 00 O RING 3 30 90 5022 00 BACK UP RING 3 31 96 0707 00 FLINGER WASHER 3 32 97 0310 00 CONNECTING R...

Page 20: ...0 CO3609000500 Screw 1 6 CO3604002800 Suct Del Valve 6 51 N A Pump Crankcase 1 7 CO1802019200 Suct Del Valve Spring 6 52 CO3609000500 Screw 4 8 CO1205003300 Suct Del Valve Cage 6 53 CO3410032900 Injec...

Page 21: ...7 N A Ring 1 72 CO3200001700 Plug 1 28 CO2409008800 CO3002065400 Unloader Ball 1 73 CO1209011700 Gasket 1 31 CO3009001300 Valve Seat Kit 1 74 CO3200009600 Plug Cap 1 32 CO1210035600 O Ring 3 77 See 78...

Page 22: ...Comet ZWD Pump Exploded View 22...

Page 23: ...Comet ZWD Pump Exploded View 23...

Page 24: ...Cat 66DX40GG1 Pump Exploded View 24...

Page 25: ...uct 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 Crankca...

Page 26: ...0552 Detergent Coupling 1 34 0205 0050 Con Rod Assembly 3 107 2803 0395 Special Coupling 1 35 3019 0033 Outer Seeger 1 108 1223 0108 Wing Nut 1 36 3201 0026 Oil Indicator 1 109 1002 0158 Water Filter...

Page 27: ...210 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 Alumin...

Page 28: ...ly 3 107 2803 0395 Special Coupling 1 35 3019 0033 Outer Seeger 1 108 1223 0108 Wing Nut 1 36 3201 0026 Oil Indicator 1 109 1002 0158 Water Filter 1 37 1210 0333 O Ring 1 110 1215 0381 Safety Valve 1...

Page 29: ...3025A Pump Exploded View 29...

Page 30: ...3 O ring 14 2X1 9 781373 2 43 Clip ring Kit 7 1 14 Outlet plug Kit 5 5 44 Water filter Kit 7 1 15 Oil seal Kit 2 3 45 Socket head screw M8X50 N A 4 16 O ring 15X2 2 Kit 2 3 46 Adjusting screw Kit 8 1...

Page 31: ...spring 1 32 O ring 14 2X1 9 1 33 Hose barb seat 1 34 Outlet nut M22 1 5 14 1 5 Valve Cap Kit 14 Outlet plug 1 782839 5 32 O ring 14 2X1 9 1 35 Back up ring 9X6 2X1 2 1 36 O ring 6X1 78 1 37 Back wate...

Page 32: ...1807A Pump Exploded View 32...

Page 33: ...ctor Kit 11 1 25 O ring 26 7 1 78 Kit 6 3 71 Inlet connector Kit 11 1 26 Low pressure seal Kit 6 3 72 Swivel nut Kit 11 1 27 Compaction ring Kit 6 3 73 Water filter Kit 11 1 28 Compaction flake Kit 6...

Page 34: ...Seal Kit 23 Oil seal plunger 1 782849 3 24 Locating ring 1 25 O ring 26 7 1 78 1 26 Low pressure seal 1 27 Compaction ring 1 28 Compaction flake 1 29 High pressure seal 1 30 Supporting ring 1 7 Plung...

Page 35: ...3025A W Easy Start Pump Exploded View 35...

Page 36: ...filter Kit 7 1 14 Outlet plug Kit 5 4 45 Socket head screw M8X50 N A 4 15 Oil seal Kit 2 3 46 Adjusting screw Kit 8 1 16 O ring 15X2 2 Kit 2 3 47 Adjusting screw plug Kit 8 1 17 Spacer Kit 2 3 48 O r...

Page 37: ...rb seat 1 34 Outlet nut M22 1 5 14 1 5 Valve Cap Kit 14 Outlet plug 1 782839 4 32 O ring 14 2X1 9 1 35 Back up ring 9X6 2X1 2 1 36 O ring 6X1 78 1 37 Back water valve core 1 6 Inlet Flange Kit 39 Inle...

Page 38: ...NSSHFD5030 Pump Exploded View 38...

Page 39: ...1241002200 Packing 3 69 CO0019005200 Oil Seal 1 17 CO0009021700 Packing Retainer 3 70 Not Available Shim 0 05mm 1 18 CO1210015600 O Ring 3 70 Not Available Shim 0 10mm 1 19 CO0019006600 Oil Seal 3 70...

Page 40: ...Spring 1 9 Not Available Bushing 1 30 CO1210056400 O Ring 1 10 CO1210061500 O Ring 1 31 CO2803064500 Detergent Coupling 1 11 Not Available O Ring 1 32 CO1817009500 Knob 1 12 Not Available Anti Extr Ri...

Page 41: ...Pump Exploded View Comet DWD 41...

Page 42: ...1210082400 O RING 3 33 CO0009095000 RING 3 34 CO1241023100 SEALING RING 3 35 CO1241024000 SEALING RING 3 36 CO0009094400 PACKING RETAINER 3 37 CO1210033300 O RING 3 38 CO0019018500 SEALING RING 3 Ref...

Page 43: ...3 33 CA14179 O RING FOR OIL FILTER CAP 1 166 CA547098 VALVE 6 37 CA92241 GAUGE BUBBLE OIL W GASKET 1 167 CA46865 SPRING 6 38 CA44428 GASKET FLAT FLEX OIL GAUGE 1 168 CA543988 RETAINER SPRING INLET 3 4...

Page 44: ...PISTON STEM 1 469 CA7332 CHEMICAL FIXED INJECTOR 1 423 CA46249 RETAINER VALVE 1 470 CA76179 UNLOADER REPAIR KIT INCLUDES 412 414 415 423 424 425 426 428 429 435 436 437 1 424 CA13966 O RING VALVE RET...

Page 45: ...Pump Exploded View Cat 4SPX 45...

Page 46: ...436 CA49664 SEAT 1 69 CA126259 WASHER OIL SEAL 3 437 CA13963 O RING 70D FOR SEAT 1 70 CA25301 OIL SEAL 3 438 CA46254 SEAT CHECK VALVE 1 90 CA547091 PLUNGER 3 439 CA13963 O RING 70D FOR CHECK VALVE SE...

Page 47: ...AP 1 166 CA46429 VALVE 6 37 CA92241 GAUGE BUBBLE OIL W GASKET 1 167 CA43750 SPRING 6 38 CA44428 GASKET FLAT OIL GAUGE 1 168 CA46583 RETAINER SPRING INLET 6 40 Not Available SCREW 4 172 CA17616 O RING...

Page 48: ...RING PISTON STEM 90D 1 464 CA49118 WASHER SEAL 1 2 2 423 CA49105 RETAINER VALVE 1 468 CA31708 KIT O RING INCLUDES 414 415 424 428 430 437 446 454 1 424 CA49106 O RING VALVE RETAINER 70D 1 469 CA7367...

Page 49: ...Pump Exploded View General Pump ME11511G8 49...

Page 50: ...70 Intermediate Ring KC 15 3 35 GP90260800 Sealing Ring LP 15x22x5 3 Ref P N DESCRIPTION QTY 36 GP81210670 Bottom Ring 15 3 37 GP96738000 Washer 17 5x23x1 5 1 38 GP98210050 Plug G3 8 x13 1 39 GP967514...

Page 51: ...no charge except when the equipment has failed due to lack of proper maintenance If a part is no longer available the part may be replaced with a similar part of equal function Any misuse abuse alter...

Page 52: ...52 Assembled by Northern Tool Equipment Company Inc Burnsville MN 55306 NorthernTool com...

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