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9.0 TROUBLESHOOTING
9.1 General Spray Systems
Problem
1. No liquid getting to the pump.
2. Lack of pressure
3. Pressure jumping
4. Control box not operating
one or more boom sections
5. Liquid leaking from pump
6. Poor agitation
7. Can't get tank empty.
®
HARDI
ATV SPRAYER DIAPHRAGM OPERATOR'S MANUAL
Cause
A. Suction fi lter plugged.
B. Suction valve off.
A. Suction fi lter plugged.
B. Suction side air leak.
C. Check pump valves for
obstructions and wear.
Replace valves if necessary.
(Section 6.6)
D. Check pressure gauge.
A. Small tear or pin hole in
suction hose.
B. Suction fi lter partially plugged.
C. Check pressure gauge.
A. Check connections at battery.
B. Check for blown inline fuse on
power supply wiring harness.
(7.5 Amp - Section 3.5)
C. Check electrical wiring for
bad connection.
D. Check for 12 Volts at boom
distribution valve solenoids.
A. Replace diaphragms.
(Section 6.6)
A. Agitation valve not open.
B. Agitation nozzle plugged.
C. Agitation nozzle missing.
A. Small tear or pin hole in
suction hose.
B. Tank is not level (change angle
of tongue).
45
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