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REPAIR INSTRUCTION - GP6132
PUMP SYSTEM MALFUNCTIONS
MALFUNCTION
CAUSE
The Pressure and/
Worn packing seals
or the Delivery Drops
Broken valve springs
Belt slippage
Worn or Damaged nozzle
Fouled discharge valve
Worn or Plugged relief valve on pump
Cavitations
Unloader
Water in Crankcase
High Humidity
Worn Seals
Noisy Operating
Worn bearings
Cavitation
Rough/Pulsating
Worn packing
Operation with
Pressure Drop
Inlet restriction
Accumulator pressure
Unloader
Cavitation
Pump Pressure as
Restricted discharge plumbing
Drop at gun Rated,
Pressure
Excessive
Worn plungers
Leakage
Worn packing/seals
Excessive vacuum
Cracked plungers
Inlet pressure too high
High Crankcase
Wrong Grade of Oil
Temperature
Improper amount of oil in crankcase
Preventative Maintenance Check List & Recommended Spare Parts List
Check
Oil Level/Quality
Oil Leaks
Water Leaks
Belts, Puelly
Plumbing
Oil Change
(1 gallon) p/n 01154
Plunger Seal Kit
(1 kit/pump)
Oil Seal Kit
(1 kit/pump)
Valve Repair Kit
(1 kit/pump)
REMEDY
Replace packing seals
Replace springs
Tighten or Replace belt
Replace nozzle
Clean valve assembly
Clean, Reset, and Replace
worn parts
Check suction lines on inlet
of pump for restrictions
Check for proper operation
Reduce oil change intervals
Replace seals
Replace bearings, Refill
crankcase oil with recommended
lubricant
Check inlet lines for restrictions
and/or proper sizing
Replace packing
Check system for stoppage
air leaks, correctly sized
inlet plumbing to pump
Recharge/Replace accumulator
Check for proper operation
Check inlet lines for restrictions
and/or proper size
Re-size discharge plumbing to flow
rate of pump
Replace plungers
Adjust or Replace packing seals
Reduce suction vacuum
Replace plungers
Reduce inlet pressure
Giant oil is recommended
Adjust oil level to proper amount
Daily
Weekly 50 Hrs.
X
X
X
X
X
Recommended Spare Parts
X
7
Every
Every
Every
500
1500
3000
Hours
Hours
Hours
X
X
X
X
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