22
Troubleshooting Guide (Pump)
APPLICATION PROBLEMS
Product not
being pumped.
No chemical in tank.
Dirt in suction valve
or discharge valve.
Pump is worn out
or damaged.
Suction hose is
clogged.
Pump is cavitating.
Pump speed is too low.
Centrifugal clutch is
slipping.
Trigger valve is clogged
or damaged.
Dirt in suction valve or
discharge valve.
Pump seals and/or
packing worn or
damaged.
Pressure cannot be
raised.
Nozzle is worn out.
Too many nozzles are
being used or are the
wrong type.
Fill the chemical tank
Consult with an autorized
servicing dealer.
Consult with an authorized
servicing dealer.
Clean or backflush
suction hose.
Chemical tank vent plugged.
Clean or replace vent.
Rotate at a higher speed.
Replace clutch.
Replace trigger valve
assembly.
Consult with an authorized
servicing dealer.
Consult with an authorized
servicing dealer.
See above.
Replace with a new
nozzle.
Use correct number
and type of nozzles.
See page 7.
Symptom
Possible Cause
Remedy
Pressure cannot
be raised or
stabilized.
Poor spray pattern
or coverage.
TROUBLESHOOTING
Содержание HP726
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