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140*213MM
5 - ENG
INSTRUCTION MANUAL Horizontal Axial Pumps
HORIZONTAL AXIAL PUMPS
r %BNBHF DBVTFE CZ QBSUT PS
accessories not obtained from an
authorized dealer or not approved by
the manufacturer.
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components affected by moving
parts.
HIGH PRESSURE PUMP (DEFECTS IN
MATERIAL AND WORKMANSHIP)
One (1) year from date of purchase.
TROUBLESHOOTING GUIDE
Symptom Possible Cause(s) Corrective Action
Oil leak between
crankcase
and pumping
section
Worn rod oil seals Replace crankcase piston rod seals
Frequent or
premature failure
of the packing)
Cracked, damaged
or worn plunger
Replace plungers
Overpressure to
inlet manifold
Reduce inlet pressure
Material in the fluid
being pumped
Install proper filtration on
pump inlet plumbing
Excessive pressure
and/or temperature of
fluid being pumped
Check pressures and fluid inlet
temperature; be sure they are
within specified range
Running pump dry Do not run pump without water
Pump runs
but produces
no flow
Pump is not primed Flood suction then restart pump
Pump fails
to prime
Air is trapped inside pump Disconnect discharge hose from pump.
Flood suction hose, restart pump and run
pump until all air has been evacuated
Pump looses
prime, chattering
noise, pressure
fluctuates
Air leak in suction
hose or inlet
Remove suction line and inspect
it for a loose liner or debris lodged
in hose. Avoid all unnecessary
bends. Do not kink hose
Clogged suction strainer Clean strainer
Low pressure
at nozzle
Unloader valve is by-passing Make sure unloader is adjusted property
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
fluctuates
Valves worn or blocked
by foreign bodies
Clean or replace valves
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
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