Diagnosis & Maintenance |
| Problem
| Probable Cause
| Solution
|
| Low Pressure
| Worn or Plugged Nozzle | Replace or clean nozzle, of proper size
|
| Belt Slippage
| Tighten or replace belt
|
| Air leak in inlet plumbing | Disassemble, reseal and reassemble inlet
|
| Pressure gauge inoperative or not registering accurately
| Check with new gauge; replace worn or damaged gauge
|
| Relief / Unloader valve stuck, partially plugged or improperly adjusted; valve seat worn | Repair /replace and adjust relief / unloader valve; check for worn and dirty valve seats
|
| Inlet suction strainer clogged or improper size | Clean, use adequate size, check more frequently
|
| Worn seals, abrasives in pumped fluid or severe cavitation, inadequate water supply
| Install and maintain proper filter, replace seals, check inlet water supply, Max 6 inch inlet vacuum |
| Fouled or dirty inlet or discharged valves | Clean inlet and discharge valve assemblies
|
| Worn inlet or discharge valves
| Replace worn valves
|
| Leaky discharge hose
| Replace discharge hose
|
| Pump runs extremely rough; pressure very low
| Restricted inlet or air entering the inlet plumbing
| Proper size inlet plumbing; check for air tight seal at fittings & filter
|
| Inlet restrictions and / or air leaks, stuck inlet or discharge valves | Replace worn seals, clean out material in valves or replace worn valves.
|
| Plugged inlet filter
| Clean or replace filter
|
| Water leakage from under the manifold
| Worn inlet seals, cracked plunger
| Replace seals, install new plunger
|
| Oil leaking in the area of crankshaft
| Worn crankshaft seal, bearing or case o-ring
| Replace crankshaft seal, bearing or case o-ring
|
| Bad Bearing
| Replace Bearing
|
| Oil leaking between crankcase and pump section
| Worn crank case oil seals
| Replace crankcase oil seals
|
| Excessive play in the end of the crankshaft
| Worn bearing
| Replace ball bearing
|
| Water in crankcase
| May be caused by humid air condensing into water inside the crankcase
| Change oil at 3 month or 500 hour intervals call 1-800-338- 7373 for Pump Oil Viscosity
|
| Worn or improperly install inlet water seals
| Replace inlet water seals
|
| Oil leaking at the rear portion of the crankcase
| Damaged or improperly installed sight glass or crankcase rear cover gasket and drain plug gasket
| Replace sight glass, crankcase cover gasket or drain plug gasket
|
| Loud knocking noise in pump
| Pulley loose on crankshaft | Check key and tighten set screw
|
| Broken or worn bearing
| Replaced bearing
|
| Strong surging at the inlet and low pressure discharge
| Foreign particles in the in let or discharge valve or worn inlet and / or discharge valves
| Replace worn valves, check supply tank for contamination, install and regularly clean filter, never pump abrasive fluids
|
For Service Call 1-800-338-7373 or 1-260-728-4433 Monday - Friday 8 A.M. - 5 P.M. EST
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