AAA 9.6 GA12 Manual De Instrucciones página 6

INSTRUGnON MANUAL Industrial Triplex Pumps
INDUSTRIAL TRIPLEX PUMPS
TROUBLESHOOTING GUIDE
Symptom
Possible causa(s)
Corrective Action
Oil leak between Worn rod oil seals Replace crankcase piston rod seals
crankcase
and pumping
section
Frequent or Cracked, damaged Replace plungers
premature failure or worn plunger
of
the packing)
Overpressure to Reduce inlet pressure
inlet manifold
Material in the fluid Install proper filtration on
being pumped
I
pump inlet plumbing
Excessive pressure Check pressures and fluid inlet
and/or temperature of
temperature; be sure they are
fluid being pumped within specified range
Running pump dry Do not run pump without water
Pump runs Pump is not primed Flood suction then restart pump
but produces
no flow
Pump fails Air is trapped inside pump Disconnect discharge hose from pump.
to
prime Flood suction hose, restart pump and run
I
pump until all air has been evacuated
Pump looses Air leak in suction Remove suction line and inspect
prime, chattering hose or inlet it for a loose liner or debris lodged
noise, pressure in hose. Avoid all unnecessary
fluctuates bends. Do not kink hose
Clogged suction strainer Clean strainer
Low pressure
Unloader valve is by-passing Make sure unloader is adjusted property
at nozzle and by-pass seat is not leaking
Incorrect or worn nozzle Make sure nozzle is matched to the
flow and pressure
of
the pump. If
the nozzle is worn, replace
Worn packing or valves Replace packing or valves
Pressure gauge Valves wom or blocked Clean or replace valves
fluctuates by foreign bodies
Packing worn Replace packing
Low pressure Worn nozzle Replace with nozzle of proper size
Low engine RPM Increase engine RPM to 3400
Air leak in inlet plumbing Disassemble, reseal and reassemble
6- ENG
140*213MM