50
MAINTENANCE
PROBABLE CAUSES
CORRECTIONS
b - PRESSURE DEFICIENCY
Check the connections and the o'rings of the tank outlet and the pump
inlet.
Check the valve and valve seat.
2- Valve closed (quick shut-off).
5- Air in the system.
6- Pressure regulator.
8- Low pumping capacity.
1- PTO not turning.
Remove the cover of the suction valves.
Check the condition of the valves and replace them if necessary.
3- Filter valve closed (quick shut-off).
6- Air in the system.
7- Insufficient pump suction.
TROUBLE-SHOOTING
a - LACK OF SUCTION AND PUMPING CAPACITY
PROBABLE CAUSES
CORRECTIONS
To run the hydraulic system, it is necessary to contain a minimum
quantity of liquid, otherwise there will be no pressure.
The sprayer should be run with 540 rpm at PTO. Check visually
whether the pump is being run.
Check the filter packing ring. The filter should not leak.
When the pump runs, liquid will pass through the valve even in the
closed position, however it will be insufficient. Open it.
Impurities in the filter prevent a free liquid flow. Clean the filter
whenever filling the tank, or with more frequency depending on the
quality of the water and the type of product applied.
5- Obstruction in the intake hoses.
Check whether the hose connecting the filter to the pump
is twisted.
Check whether there is any obstruction in the hoses from tank
to filter. Fill up the tank with water, open the valve and verify if
it flows freely.
2- Lack of water in tank.
4- Dirty filter.
1- Low PTO rpm.
7- Worn nozzles.
The proper PTO rotation is 540 rpm.
When the pumps runs, liquid will pass through the valve even in the
closed position, however flow will be insufficient.
The filter should be clean to allow free liquid flow.
3- Filter partially obstructed.
4- Intake hose partially obstructed.
A deficient pump will cause depressurization. Check whether the
hose connecting the filter to the pump is twisted.
Verify whether there is any obstruction in the hoses connecting the
tank to the filter. Fill the tank with water, open the valve and observe
if it flows freely.
Disconnect the pressure hose from the control valve.
Run the sprayer at 540 rpm.
Collect water for one minute and measure. The volume collected
should approximate this shown below for each pump model:
JP - 402 = 38 L/min
JP - 75 = 75 L/min
JP - 100 = 100 L/min
JP - 150 = 150 L/min
JP - 300 = 300 L/min
Check whether the nozzle flow is within the recommended
guidelines.
Replace the nozzles when the flow rate exceeds 10% of the
specified.
Use only nozzles recommended by the sprayer manufacturer.
Summary of Contents for CONDOR B-12
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