Goldacres Prairie Pro Operator's Manual page 118

pra
PROBLEM
The pressure on
gauge is higher than
the no le flow
indicates
The flow rate is
correct but my
pressure is too low
or high.
Pressure fluctuation
Pump pressure
pulsating
Pump oil is becoming
milky
Pump is noisy
Pump housing or
mounting cracked.
Damaged universal
joint
PTO shaft bent or
vibrating excessively
112 - Chapter 11 - Troubleshooting
p iap ra
COMMON CAUSES
locked filters of no les
Flow loss due to resistance in
lines, valves and filters.
Nozzles
Air leak on suction side of
pump
Incorrect pump speed
Faulty pump valves
Air accumulator pressure is
incorrect if fitted
Air accumulator diaphragm
has a leak if fitted
Incorrect pump speed
Air leak on suction side of
pump
Cracked diaphragm
Low oil level
Damaged pump valves
Pump suction line has air leak
or is restricted
Extremely cold weather can
cause liquid in the pump to
freeze
The shaft is too long
PTO shaft is inadequately
lubricated
PTO shaft is too short
COMMON SOLUTION
Check and clean all pressure and no le filters
Re-calibrate console to allow for pressure loss
Check nozzle chart for correct nozzle size.
Check suction pump for air leaks.
Adjust speed to 400 - 540 RPM range
Replace pump valves
Reset the pressure in air accumulator
Replace air accumulator diaphragm
Adjust speed to 400 - 540 RPM range
Check pump suction for air leaks
Replace all diaphragms
Refill or replace oil
Replace pump valves
Clean suction filter and check for leaks in suction lines
Check for ice in the pump and let defrost if required
Shorten shaft
Lubricate PTO shaft and uni joints
Replace PTO shaft
Prairie Pro Operator's Manual MY19 - REV 2