55
PROBLEM
CAUSE
SOLUTION
Chemical system pressure
Return hose plugged.
Clean or replace hose.
too low.
Faulty pressure sensor.
Calibrate sensor. Replace
as required.
Faulty regulator.
Repair or replace valve.
Wrong agitation valve setting.
Close agitation valve
slightly until pressure goes
to required range.
Check valves or screens plugging.
Dirty water.
Flush and clean the system.
Use clean water.
Poorly mixed chemicals.
Mix chemicals slower. Follow
mixing instructions.
High spray drift.
Boom set too high.
Lower boom
Too windy.
Wait until wind dies down.
The pump does not draw water.
Pump is airlocked.
Bleed air from pump.
Suction line is plugged or
Examine suction line. Replace
collapsed.
as required.
Pump faulty.
Replace pump.
Pressure reading fl uctuates.
The pump is sucking in air
Examine the suction hose and
through the intake or air
make sure it is fi rmly secured.
has not been entirely
Run the pump with the outlet
evacuated from the pump.
hose open to evacuate air from
pump.
Regulator broken.
Replace regulator.
The spray fl ow is irregular.
Filter screen plugged.
Clean screens.
Nozzle screens plugged.
Clean nozzle screens.
Summary of Contents for 973P Series
Page 1: ...1 HIGH CLEARANCE CENTER PIVOT SUSPENDED BOOM 3 PT FIELD SPRAYER 973P SERIES OPERATOR S MANUAL...
Page 45: ...45 Fig 62 BOOM TILT PIVOT 3 Grease boom tilt pivot 1 location each boom Left Right...
Page 59: ...59 7 4 ELECTRICAL SCHEMATIC OPTIONAL CABLE 10 CONSOLE 3 OR 6 BOOM SCS 440 450 CONSOLES...
Page 60: ...60 7 5 OPTIONAL CABLE FLOW CONTROLLER UP TO 6 BOOM VALVES...
Page 62: ...62 7 7 5 FUNCTION HYDRAULIC CAB BOX...
Page 63: ...63 7 8 5 FUNCTION HYDRAULIC CAB BOX SWITCH WIRING...
Page 67: ...67...
