Gardner Denver C2500Q QUINTUPLEX, Operating And Service Manual

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PROBLEM
POSSIBLE CAUSE SUGGESTED ACTION
Short Plunger/Packing Life. 1. Abrasives in pumped fluid.
1. Consult Gardner Denver
Customer Service for plunger
/ packing recommendation.
Filter pumped fluid.
2. Excessive plunger/packing 2. Lubricate with rock drill oil.
friction. Do not overtighten adjust-
able packing.
Use Gardner Denver plungers.
3. Metal parts or particles 3. Check stuffing box
wearing plunger. alignment.
Check gland alignment.
Check plunger alignment.
Check packing for foreign
particles.
Replace lantern ring.
4. Wrong plunger/packing for 4. Consult Gardner Denver
pumping conditions. Customer Service.
5. Wrong size packing. 5. Install correct size packing.
6. Improper packing installation. 6. Check installation procedure
and install correctly.
7. Excessive crosshead wear. 7. Replace crosshead.
8. Pump cavitating. 8. See Cavitation, Fluid Knock
or Hammer problem.
Catastrophic Failures:
1. Pump overloaded. 1. Reduce pump speed and/or
Broken Shafts, pressure.
Bent Rods, etc.
2. Start-up against closed 2. Insure valve is open
discharge valve. before starting.
3. Main bearing failure. 3. Repair or replace.
4. Plunger striking valve or 4. Check valve condition and
valve parts. installation procedure.
5. Plunger striking cylinder. 5. Check plunger for proper
length.
6. Frozen fluid in cylinder. 6. Do not start pump when
pumped fluid is below freezing
temperature.
7. Lube oil pump failure. 7. Replace oil pump.