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TROUBLESHOOTING
General
The following troubleshooting information is
provided as a reference when your sprayer is not
functioning correctly. To ensure that you receive
the best possible service, it is recommended that
you exhaust all applicable troubleshooting solutions
Tanks, Chassis & Wheels
PROBLEM
The drawbar of the sprayer
has become noisy and loose
Induction Hopper
PROBLEM
Induction hopper is not
performing as well as it
should
Spray Pump
PROBLEM
Pressure and flow
rate are too low
Prairie 1500-3000L Operator's Manual MY17-MY19 - REV 0
COMMON CAUSES
Worn, or missing, plastic insert
in towing eye
COMMON CAUSES
Insufficient flow to venturi in
the hopper bottom
Air leaks on induction system
COMMON CAUSES
Pump
Excessive bypass on pressure
manifold
Supply to pump is restricted
Chapter 11
shown in this chapter prior to calling your dealer, or
Goldacres, for service advice
Parts information and schematics can be found in
the parts manual supplied.
COMMON SOLUTION
Replace plastic insert
COMMON SOLUTION
Check the pressure supplied to the hopper
bottom is around 550 kPa (80 PSI).
Check all hoses, clamps, and cam lever
fittings are sealed
COMMON SOLUTION
Check suction line for air leaks.
Suction filter may be blocked.
Check pump speed. 400 - 540 RPM
Check oil for colour change. If the oil appears milky, a
diaphragm will be damaged and needs to be replaced.
Check valves in pump.
Turn the pressure station ball valve to off, if the
pressure increases on the pump gauge there is a
problem with the control valve.
Measure the flow per minute coming out of
one nozzle and check the nozzle chart for the
corresponding flow.
Check the regulator valve is rotating the full 90
degrees when the boom valves are switched off.
Check tank sump and suction line blockages.
Verify console calibration settings.
Check the pressure relief valve setting on pressure
manifold.
Continued over page
Chapter 11 - Troubleshooting - 69
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