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Click to enlargeGeneral Pump / Interpump


genpumin

Check Valve Kit General / InterpumpCheck Valve Kit General / InterpumpKit # 1 Genuine General Pump / Interpump Check Valves (6 valves with o-rings per kit) Fits most General & Interpump brand pumps. OEM Original Equipment Manufacturers Parts NOT GENERIC PARTS!

For use with the following General pumps:

T9721 T1321 TS1011 TT9351 T9731 T9161 TS1321 TT9441 T9791 T1511 TS1331 TT2028G T721 T1621 TS1511 TT2028E T731 T1631 TS1621 TT2035 T991 T9211 TS1711 T9051 T9951 T2011 TS2011 TT9061 T9971 T2031 TS2021 TT9071 T921 T9281 TS821 T9131 T9051EBF TT9111 and others,


Availability: Usually ships in 2-3 business days.

BAR1416MSRP $70.95Discount Price: $49.95
Click to enlargeGeneral Pump TS2021 / Interpump WS202General Pump TS2021 / Interpump WS202 rated 5.6 GPM @ 3500 PSI1450 RPM (Right Hand Shaft is standard, call if left hand shaft needed.)


Availability: Usually ships in 2-3 business days.

TS2021MSRP $1,095.00Discount Price: $499.95
Trouble Shooting Pumps

Trouble-Shooting



On-Line Trouble Shooting Guide

Introduction

In nearly all instances, pump failure is the result of improper installation or operation rather than normal wear. One of the most common causes of pump failure is improper or unnecessary service, often as a result of the operator attempting the service.

Each time the pump is serviced, the chance of pump failure as a result of improper service increases. The operator should be left with no reason or desire to open the pump for service.

Usually requests for service are not made until the operation of the equipment has become so bad that it usually does not work.

"The high pressure pump is generally one of the most dependable and best constructed components in a high pressure cleaner. The well-engineered pump may be installed in a not-so-well engineered system. "All pumps have wear parts, which eventually need to be replaced.

"In most cases, the high pressure pump is likely to outlast most other components as long as the pump is installed correctly and the system is operated properly." (This is a quote from "The Universal Guide to High Pressure and Steam Cleaner Repair.")

Pump chattering caused by heavy cavitation can be mistaken for a broken connecting rod. To determine if cavitation is the source of the problem, open the upstream chemical injector completely while operating the system. If the noise leaves it is cavitation. If the system does not have an upstream injector hook up a positive feed system to the pump and operate the system.

Do not assume that the pump is the problem.

Set up a check list.









Excessive noise:Hot waterMounting bolts
 CavitationVibrations in the system
 Worn valvesWorn O-rings
 BeltsConnecting rods
 PulleysPlunger rod pins
 Bearings 
Oil leaks:Bad seals
 Red shipping cap has no been removed
Loss of pressure:Worn nozzlePackings
 Bad pressure gaugeValve seat O-rings
 RPMInlet pressure or flow
 Valves 




How to Start
Ask the Right Question At the Right Time

Isolate the Problem

  • Set Up a Diagnostic Procedure
  • Simple to Hard
  • Logical Progression

    Use Simple Tools

  • Eyes
  • Ears
  • Nose
  • Brain

    Start With Observations

  • Physical Inspection and Observations
  • Carefully Observe the Equipment In Operation
  • Trace the Fluid Flow

    Disregard False Impressions

    Don't Skip Any Steps

  • Start At Point "A" and Finish at Point "Z"
  • Isolate the Problem
  • "Remember, Problems Can Cause Problems"

    Pump Failures: There Are Several Reasons for Pump Failure, and Most Are Generally Connected with

  • Improper Use

  • Insufficient or Dirty Water
  • Plugged Filters
  • Kinked or Plugged Hoses
  • Cavitation
  • Lack of Maintenance

    Fluid System
    NO FLOW:

  • No Power to the Pump
  • Trigger Gun Not Opening
  • No Water Source
  • Clogged Spray Nozzle
  • Clogged Inlet Filter
  • Stuck Float Valve
  • Faulty Unloader
  • Pinched or Clogged Inlet Hose
  • Inlet Valve(s) Not Open

    LOW PRESSURE, ADEQUATE FLOW:

  • Worn, Incorrect, No Spray Nozzle
  • Lance on Low Pressure Setting
  • Unloader/Regulator Improperly Adjusted
  • Pressure Gauge Inaccurate or Broken
  • Worn Pump Packings

    LOW PRESSURE, LOW FLOW:

  • Volume Improperly Adjusted
  • Discharge Leaks
  • Chemical Injector Orifice Blocked
  • Drive Belts Loose
  • Pump or Motor Not Running at Rated Speed
  • Stripped Pump Drive Coupling
  • Defective Easy Start Valve
  • Malfunctioning Motor or Engine

    LOW PRESSURE, VERY LOW FLOW:

  • Unloader Stuck In Bypass
  • Outlet Restriction
  • Clogged Nozzle
  • Restriction in the High Pressure Hose
  • Debris in the System
  • Cavitation
  • Clogged Inlet Hose or Filter

    EXCESSIVE PRESSURE:

  • Spray Nozzle Too Small
  • Faulty Pressure Gauge
  • Unloader/Regulator Improperly Adjusted
  • Faulty Unloader/Regulator

    PUMP CHATTERS:

  • Air in the System
  • Chemical Line Not Submerged
  • Inlet Line Kinked, Restricted, or Internal Hose Separation
  • Inadequate Water Supply
  • Float Valve Is Stuck
  • Turbulence in the Float/Supply Tank
  • Cavitation
  • Inlet or Inlet Strainer Clogged
  • Water Supply Too Hot

    INLET LINE VIBRATION:

  • Air in the System
  • Debris in the Valves

    OUTLET LINE VIBRATES:

  • Air in the System
  • Debris in the Discharge Valves
  • Damaged Pump Packings

    INLET & OUTLET LINES VIBRATE:

  • Inlet and/or Discharge Valves Fouled
  • Other Downstream Restrictions
  • Air in the System

    UNLOADERSIREGULATORS VERY LOW OR NO FLOW:

  • Unloader Stuck In Bypass

    UNLOADER CYCLES WITH SYSTEM UNDER PRESSURE (FLOW UNLOADER):

  • Improper Flow
  • Nozzle Too Small
  • Nozzle Clogged
  • Improper Unloader Orifice
  • Unloader Orifice Clogged
  • Injector Orifice Clogged

    UNLOADER CYCLES WITH THE SYSTEM IN BYPASS (FLOW UNLOADER):

  • No Restriction in the Unloader
  • Weep Gun in the System
  • Downstream Leakage
  • Accumulator Downstream

    UNLOADER PRODUCES SMOOTH FLOW & LOW VOLUME (TRAP UNLOADER):

  • Unloader Adjusted Too Low
  • Spray Nozzle Clogged
  • Spray Nozzle Too Small
  • Injector Orifice Blocked

    UNLOADER PRODUCES SMOOTH FLOW & LOW VOLUME (FLOW UNLOADER):

  • Unloader Adjusted Too Low
  • Unloader Is Stuck in Bypass
  • Restriction in the System

    UNLOADER PRODUCES LOW FLOW & NORMAL PRESSURE (TRAP UNLOADER):

  • Nozzle Too Small

    UNLOADER PRODUCES LOW FLOW & NORMAL PRESSURE (FLOW UNLOADER):

  • Nozzle Too Small

    UNLOADER PRESSURE INCREASES WHEN THE TRIGGER IS RELEASED (FLOW):

  • Unloader Piston is Stuck or Frozen
  • Bypass Port Is Clogged or Restricted
  • Excessive Tension on the Main Spring

    LEAKING:

  • Leaking from the Inlet:
  • Bad Inlet Hose Seal
  • Loose Clamps or Connections
  • Leaking from the Float Tank:
  • Float Is Full of Water or Stuck
  • Leaking from the Pressure Fittings:
  • Fittings Not Tightened or Sealed
  • Leaking from the Quick Disconnects:
  • Bad O-Ring
  • Leaking from the Pump:
  • Bad Low Pressure Seal(s)
  • Cracked Plunger
  • Damaged Manifold
  • Leaking from the Trigger Gun:
  • Bad Piston O-Ring
  • Stripped Connection
  • Leaking from the Nozzle:
  • Weep Gun
  • Damaged Gun Valve Ball & Seat
  • Leaking from the Pop Off Valve:
  • System Over Pressure
  • Clogged Nozzle
  • Trigger Gun Not Working
  • Excessive Pressure Spikes
  • Wear on the Ball & Seat

    Trigger Gun
    NO FLOW FROM THE NOZZLE WHEN THE TRIGGER IS DEPRESSED:

  • Broken Rod in the Trigger Gun
  • Blockage in the System Past the Trigger Gun

    EXCESSIVE PRESSURE WHEN THE TRIGGER GUN IS RELEASED:

  • Excessive Pressure Spike
  • Malfunctioning Unloader

    FLOW DOES NOT STOP WHEN THE TRIGGER IS RELEASED:

  • Broken Return Spring
  • Debris in the Gun Valve

    TRIGGER ACTION STICKS:

  • Keeper Is Too Tight

    Chemical System
    NO CHEMICAL:

  • Chemical Valve Is Closed
  • Chemical Foot Strainer Is Clogged
  • Chemical Line Is Kinked
  • No Adjustment for Low Pressure
  • Chemical Nozzle Not Sized Properly
  • Wrong Size Chemical Orifice

    EXCESSIVE CHEMICAL:

  • Valve Improperly Adjusted

    SPRAY NOZZLE:

  • Spray Pattern Irregular.-
  • Clogged Nozzle
  • Worn Nozzle
  • Volume Proper, Pressure Low.-
  • Nozzle Is Too Large
  • Internal Nozzle Wear
  • Pressure Proper, Volume Low.-
  • Clogged Nozzle

    OIL BETWEEN THE CRANKCASE AND PUMP MANIFOLD:

  • Worn Plunger Rod Oil Seals

    OIL LEAKING IN THE CRANKSHAFT AREA:

  • Worn Crankshaft Oil Seal
  • Bad Bearings

    EXCESSIVE PLAY IN THE CRANKSHAFT PULLEY AREA:

  • Worn Bearings from Excessive Belt Tension

    OIL FROM UNDER THE CRANKCASE:

  • Leaking Plunger Rod, Side Cover, Rear Cover, or Crankshaft Oil Seals Or O-Rings

    LOUD KNOCKING NOISE IN THE PUMP:

  • Pulley Loose on the Crankshaft
  • Broken Or Worn Bearing, Connecting Rod, Or Plunger Rod
  • Cavitation

    FREQUENT OR PREMATURE PACKING FAILURE:

  • Scored, Damaged, or Worn Plunger
  • Overpressure to the Inlet Manifold
  • Abrasive Material in the Fluid Being Pumped
  • Excessive Pressure and/or Temperature of the Fluid Being Pumped
  • Pump Running Dry
  • Cavitation

    HIGH CRANKCASE TEMPERATURE:

  • Wrong Oil
  • Low Oil Level
  • Old Oil
  • Contaminated Oil
  • Oil Breakdown

    WATER IN THE CRANKCASE:

  • Worn Low Pressure Seals
  • Cracked Plunger
  • Worn Plunger Rod O-Ring
  • Humid Air Condition
  • Water Running Over The Pump







  •  



    TROUBLE SHOOTING "QUICK" REFERENCE









    PROBLEM POSSIBLE CAUSES REMEDY

    Pulsation

    Faulty pulsation damper

    Check precharge: if low, recharge it or install a new one.

    Low Pressure

    Worn nozzle

    Belt slippage

    Air leak in inlet plumbing

    Relief valve stuck, partially plugged or improperly adjusted valve seat worn

    Inlet suction strainer clogged or improperly

    Sized

    Worn packing.

    Abrasives in pumped fluid or

    severe cavitation. Inadequate water.

    Fouled or dirty inlet or discharge valves.

    Worn inlet. discharge valve blocked or dirty.

    Leaky discharge hose.

    Replace nozzle, of proper size.

    Tighten or replace

    Use correct belt.

    Disassemble, reseal and reassemble.

    Clean, adjust relief valve-, check for worn and dirty valve

    seats. Kit available.

    Clean. Use adequate size. Check more frequently.

    Install proper filter. Suction at inlet manifold must be

    limited to lifting less than 20 feet of water or -8.5 PSI

    vacume.

    Clean inlet and discharge valve assemblies.

    Replace worn valves, valve seats and/or discharge hose.

    Pump runs extremely rough, pressure very low

    Restricted inlet or air entering the inlet plumbing

    Inlot restrictions and/or air leaks. Stuck inlet or

    discharge valve.

    Proper size inlet plumbing. Check for air tight seal.

    Replace worn cup or cups, clean out foreign material,

    replace worn valves.

    Water leakage from under manifold; slight leakage

    Worn packing.

    Install new packing.

    Oil leak between crankcase and

    Pumping section

    Worn crankcase piston rod seals O-rings on

    plunger retainer worn.

    Replace crankcase piston rod seals. Replace O-rings.

    Oil leaking in the area of crankshaft

    Worn crankshaft seal or improperly installed oil

    seal-0-ring.

    Bad bearing.

    Remove oil seal retainer and replace damaged O-ring or seals.

    Replace bearing.

    Excessive play in the end of the crankshaft pulley

    Worn main bearing from excessive tension on drive belt.

    Replace crankcase bearing and/or tension drive belt

    Water in crankcase

    May be caused by humid air condensing into

    water inside the crankcase.

    Worn packing and/or piston rod sieve, O-rings

    on plunger retainer worn.

    Change oil intervals, Use any high grade automotive 30

    weight nondetergent oil.

    Replace packing. Replace O-rings.

    Oil leaking from underside of crankcase

    Worn crankcase piston rod seals.

    Replace seals.

     

    Oil leaking at the rear portion of the crankcase

    Damaged crankcase, rear cover O-ring, drain plug

    O-ring or sight glass O-ring.

    Replace cover O-ring, drain plug O-ring, or sight glass

    O-ring.

    Loud knocking noise in pump

    Pulley loose on crankshaft.

    Broken or worn bearing.

    Check key and tighten set screw.

    Replace bearing.

    Frequent or premature failure of the packing

    Scored, damaged or worn plunger.

    Overpressure to inlet manifold.

    Abrasive material in the fluid being pumped.

    Excessive pressure and/or temperature of fluid

    being pumped.

    Over pressure of pumps.

    Replace plungers,

    Reduce inlet pressure.

    Install proper filtration on pump inlet plumbing.

    Check pressures and fluid inlet temperature; be sure they

    are within specified range.

    Reduce pressure.

    Do not run pump without water.





    Troubleshooting guide compliments of General Pump

    Contact your local service center for assistance.

    For parts & accessories call 1 800 292-EASY.



    troubshootpu
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