24
7.0 TROUBLESHOOTING
Problem
Causes
Recommended
Solutions
Pump does not operate.
Air supply or pressure is
inadequate. Air lines restricted.
Dispensing valve is not open
or clogged.
Clogged fluid lines, valves,
hoses or damaged air motor.
Low or exhausted fluid supply.
Increase air pressure. Check
for any restrictions in air line.
Open and/or clear valve.
Follow pressure relief
procedure to clear obstruction.
Service air motor. Replace
parts as necessary.
Refill fluid. Prime system
and/or flush it.
Non-stop air exhaust.
Worn or damaged air motor
gasket, packing, seals, etc
Service air motor. Replace
parts as necessary.
Erratic pump operation.
Intake valve or packing worn
off.
Intake valve is not completely
closed.
Refill fluid. Prime system or
flush it.
Clear obstruction and service
pump. Replace parts as
necessary.
Low output on upstroke.
Held open or worn intake
valve.
Clear obstruction and service
pump.
Replace parts as necessary.
Low output on down
stroke.
Held open or worn intake
valve.
Clear obstruction and service
pump.
Replace parts as necessary.
Low output on both
strokes.
Restriction in air lines or air
pressure low.
Closed or clogged valves.
Fluid supply is insufficient or
exhausted.
Obstructions in fluid lines,
hoses, valves, etc.
Increase air pressure or
supply.
Open valve or clear valve.
Refill fluid. Prime system or
flush it.
Follow pressure relief
procedure to clear obstruction.
