Goldacres Crop Cruiser G6 Operator's Manual page 154

Spray Pump
PROBLEM
The pressure on
my gauge is higher
than the nozzle flow
indicates
Pressure fluctuation
Pump pressure
pulsating
Pump oil is becoming
milky
Pump is noisy
Pump housing or
mounting cracked.
150 - Chapter 11 - Troubleshooting
COMMON CAUSES
Blocked filters of nozzles
Flow loss due to resistance in
lines, valves and filters.
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
COMMON SOLUTION
Check and clean all pressure and nozzle filters
Re-calibrate console to allow for pressure loss
Check suction pump for air leaks.
Adjust pump speed:
4200 - 4400 RPM - Standard centrifugal pump only.
400 - 540 RPM - Optional diaphragm pump only.
Replace pump valves
Reset the pressure in air accumulator
Replace air accumulator diaphragm
Adjust pump speed:
4200 - 4400 RPM - Standard centrifugal pump only.
400 - 540 RPM - Optional diaphragm pump only.
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
G4.7, G5, G6 Crop Cruiser Operator's Manual MY19 - REV 0