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Tech Bulletins

Tech Number File Subject Models
001 Long to Short Cylinder Change - Piston Pumps 10 FR
002 Inlet Pressure vs. Water Temperature All Models
003 Power Unit Drive Packages 3PFR-68PFR, 10FR-60FR
004 V-Packing and Sleeved Piston 1024-1044
005 'B' Manifold and Stepped Seat 10FR
008 Motor Pulley Selection 3PFR-15PFR, 3FR-25FR
009 M7 to M8 Piston rod and Seal 25 FR
011 Manifold and Stepped Seat 1024-1044
012 V-Packing Inserters for Sleeve-Type Piston Pumps 284, 524, 624, 1024, 1044, 6024, 6044
016 Bac-cup Piston Assemblies 290, 323, 333, 430, 623
017 Discharge Manifold Shims 3FR, 4FR, 10FR, 25FR
020 Quiet Valves-Piston Pumps 280, 333, 430, 423, 820, 1010
021 14M to 16M Sleeve, Seal, Piston Rod 1020, 1520, 2020, 2520
022 Regulator O-Ring Repair Kits 7001-7032
024 Lubrication of Lo-Pressure Seals All Models
025 4 Frame 4-Screw Crankcase Cover 333-430
026 Threaded Oil Gauge and C/C Cover 280, 290, 333, 430, 10FR
027 PVDF Spring Retainers 5PFR, 7PFR, 15PFR
030 Flanged Nut-Discharge Manifold 280, 323, 333, 390, 430
032 Shaft Extension and Manifold Port Dimensions 310, 317, 323, 530 ,550
033 Crankcase with Large Oil Cap 270, 279, 280 ,290
034 Servicing Crankcase Section - Ball Bearing Models 3FR, 4FR, 5FR, 10FR, 25FR, 3CP, 5CP, 3PFR, 5PFR, 25PFR, 28PFR
035 Servicing Crankcase Section - Roller Bearing Models 7PFR-68PFR, 7CP
036 Identifying Your Pump All Models
037 Machined Piston Assembly-Piston Pumps 323, 333, 623
038 Blue Dot Seal and Wick-Piston Pumps 323, 333, 430, 10FR
039 Flat Valves VS Quet Valves 390
040 Stepped Seat-Retainer with Coil Spring-Manifold ch 3527-3537
041 Crankcase and Oil Gauge 3520-3535
042 10 Frame 4-Screw Crankcase Cover 623, 820, 1010
043 Servicing the Low and High Pressure Seals All Plunger Models
044 Tapered Seat and Piston 7001-7023
045 1-Piece Plunger Retainer w/Stud-SS 5PFR, 7PFR, 15PFR
046 Spring Retainer with Coils Spring 317, 347, 357, 1057
047 Blind Bearing Cover-Single Extended Shaft Pumps All Gearbox Pumps
048 Extended Valve Plug 7PFR, 15PFR
049 Stainless Steel Hardware-NAB Pumps 3PFR7, 5PFR7, 15PFR7
050 Spacer w/Coil Springs 3520, 3527, 3535, 3537
051 M8 to M10 Manifold and Crankcase All 7PFR models
052 Plunger Rod and Stud Changes 3PFR, 5PFR, 15PFR, 35PFR, 60PFR
053 Liquid Gasket for Seal and Valve Servicing All Plunger NAB and SS Models
054 2-Piece Seal Retainer 5PFR, 7PFR
055 Removing Pump from Engine or Motor All 2SF, 2DX, 3DX, 3DNX, 3SPX, 4SF, 66DX
057 Set Screw and Hardened Key 4SF
058 Fine to Coarse Thread Extended Valve Plug 56, 57, 59, 60
061 Throttle Controller Installation & Adjustment 8100
062 Manifold and Seal Case Change 650-651
063 Flushed Pump Renumbered 2520C
064 By-Pass Hose Sizing-3/8-2-1/2" All Models
065 Higher Performance Ratings 2SF-4SF
066 Dual V-Packing to Single V-packing All 4HP Models
067 Brass to Stainless Plunger Retainer 3PFR, 5PFR, 7PFR
068 NAB to SS V-Packing Spacer 3507
069 Extended Manifold Dimensions All 35PFR Models
070 Maximum Performance 2SF, 4SF
071 4HP to 5DX Conversion All 4HP Models
072 STG V-Packing and Seal Kit Update 1050, 1051, 1057
073 Hi-Temp, HPS-Plunger Pumps 2SF, 2SFX
074 Torque Chart All Piston and Plunger Models
075 Sleeved Plunger Rod All 4SF Models
076 Seat and Oring 2530, 2537
078 5CP to General/Interpump Retrofit Mounting 5CP, 5FR Plunger Pumps
079 Manifold Port Location 317, 347, 357
080 Extended Discharge Manifold 3507, 3517
081 Seal Case and Wick 2530, 2537
082 Bolt Down Valve Plug 6761
083 Winterizing a Pump All Models
084 Eye-Bolt Relocation 60FR, 60PFR, 68PFR
085 M7 to M8 Keyway 25FR, 25PFR, 28PFR
086 Ceramic Plunger 2DX Models
087 Metal to Acetal Female Adapters 15PFR, 35PFR, 60PFR
088 6-Bolt SS Manifold All 3CP, 5CP Models
089 Machined Valve 15PFR, 18PFR
090 Cover, O-ring, Crankcase Change 5FR, 5PFR
091 Nylon to SS Inlet Valves 2SF05SEEL-2SF35SEEL
092 Crankcase Change All 2SF-2SFX Models
093 Seal Case and Female Adapter Change 651, 661
094 Modular Unloader Valve and Seat 2DX, 3DX Models
095 Galling Prevention All Stainless Steel Models
097 Tapered to Conical Piston and Seat 7001-7033, 7001.100-7033.100
098 Retaining Ring Eliminated 15 PFR
099 Discharge Manifolds 3520, 3527, 3535, 3537, 3521-3541C
100 1540 to 1540E Moisture Protection 1540E
101 Unloader and Injector Change 7800, 7850, 7860
102 Washer-Spring Washer Set 7001-7033, 7001.100-7033.100
104 Crankcase and Cover Change 3FR, 3PFR
105 Seal Retainer Assemblies 5PFR, 7PFR, 8PFR, 35PFR, 60PFR, 68PFR
106 Crankcase and Cover Change 7PFR, 8PFR
107 Spacer/Coil Spring Design Change 3541, 3541C, 3545, 3547C, 3841, 3841K
108 Spacer with Large Coil Spring 3531, 3531C, 3535, 3535C, 3537, 3537C, 3831, 3831K
109 Discharge Manifolds for Plunger Pumps 3520, 3535 and 3545
110 Seal Case Modification 3CP1120, 3CP1120.3400, 3CP1130, 3CP113.3400, 3CP1140, 3CP1140.3400
111 Crankcase and Cover Change 10 Frame piston pumps
114 35 and 38PFR Spacer w/Coil Spring 3520, 3520C, 3521, 3521C, 3527, 3821, 3821K
115 R-Series Plunger Design Change 152R060/C, 152R080/C, 152R100/C, 157R060, 157R080
116 152R-Series Valve Assembly Change 152R060/C, 152R080/C, 152R100/C
118 Crankcase Paint Change 7 Frame to 68 Frame and 7CP Plunger Pumps
119 7693/7694 Unloader Piston Stem/O-Ring Change 7693, 7693.100, 7694 and 7694.100
120 7537/7542 Unloader Piston Stem/O-Ring Change 7537, 7537.100, 7542, 7542.100
121 7 and 8 Frame Plunger Pump Bell Housing Mounting 7PFR, 8PFR
122 Design Changes For 2SF and 5CP Stainless Steel Pumps 2SF and 5CP Stainless Steel Models
123 Crankcase Threaded Side Holes 7 - 8 Frame, 7CP Plunger Pumps
124 Plunger Rod Assembly Change - 2SF/2SFQ 2SF05SEEL,10SEEL,15SEEL, 22SEEL,2SFQ25SEEL,29SEEL,35SEEL,42SEEL
125 35 and 38 Frame Crankcase Changes All 35 and 38 Frame Plunger Pumps
126 25 and 28 Frame Rear Cover Change All 25 frame and 28 frames pumps
127 Model Number Changes to 35 Frame Stainless Steel Plunger Pumps 3521DHS, 3521DHS.44101, 3531D, 3531DHS, 3531DHS.44101, 3541D, 3541DHS
128 15 and 18 Frame Crankcase With 8 Threaded Bearing Cover Holes 15 and 18 Frame Plunger Pumps
129 Replacement Pressure Washer Pumps Gas Engine Direct Drive Pumps
130 Oil Level Inspection with Dipstick for Plunger Pump 7CP Series 7CP Plunger Pumps
131 120 Volt Rectified DC Proper Motor Wiring for 1XP Series 1XP Series, DC
132 Paint Change to Pulsation Dampeners 6011, 6018, 6022, 6026, 6028, 6029, and 6030
133 Model 3DX29GSI vs. 4DX29GUIF 3DX29GSI, 4DX29GUIF
134 Piston and Plunger Pumps Crankcase Capacities All Models
135 25 Frame Crankcase With 8 Threaded Bearing Cover Holes 25 and 28 Frame Plunger and Piston Pumps