Troubleshooting; General Spray Systems - Hardi N Series Operator's Manual

9.0 TROUBLESHOOTING

9.1 General Spray Systems

Problem
1. No liquid getting to the pump.
2. Lack of pressure
3. Pressure jumping
4. Pressure dropping
5. Control box not operating one
or more boom sections
6. Liquid leaking from pump
7. Poor agitation
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HARDI N-SERIES 3-PT SPRAYER DIAPHRAGM OPERATOR'S MANUAL
Cause
A. Suction fi lter plugged.
A. Suction fi lter plugged.
B. P.T.O. speed not fast enough.
C. Suction side air leak.
D. Pump valves obstructed
or worn. Replace valves if
necessary (Section 6.6).
E. Check pressure gauge.
A. Suction side air leak.
B. P.T.O. shaft slipping on pump
crank shaft.
C. Suction fi lter partially plugged.
D. Check pressure gauge.
A. P.T.O. shaft slipping on pump
crank shaft.
B. Suction side air leak.
C. Suction fi lter partially plugged.
A. Check connections at battery.
B. Check for blown inline fuse on
power supply wiring harness.
(7.5 Amp - Section 3.3)
C. Check electrical wiring for bad
connection.
D. Check for 12 Volts at boom
distribution valve solenoids.
A. Damaged diaphragm(s).
Replace (Section 6.6).
A. Agitation valve not open.
B. Agitation nozzle plugged.
C. Agitation nozzle missing.
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