20
HARDI
®
12 VOLT ESTATE SPRAYER OPERATOR’S MANUAL
9.0 TROUBLESHOOTING
Problem
1. Lack of Pressure
2. Pressure jumping
3. Pump not working
4. Inadequate weed control
Solution
A. Check that suction filter is
not clogged.
B. Check suction line from tank
to pump for leaks.
C. Check that pressure regula-
tor seat is not damaged.
D. Check pressure gauge.
A. Check that suction filter is
not partially clogged.
B. Check that pressure regula-
tor is functioning properly.
C. Check that non-drip nozzle
diaphragms are functioning
correctly (should open at 10
PSI).
D. Check safety valve for weak
or broken valve spring.
E. Check pressure gauge.
A. Check connections at
battery.
B. Check for blown fuse.
C. Check electrical wiring for
bad connection.
C. Check that On/Off switch is
functioning properly.
A. Re-calibrate sprayer.
B. Check chemical container
instructions.
C. Did weather conditions
affect application?
D. Take care when driving not
to overlap or miss spraying.
E. Did you stop vehicle in field
or lawn and leave sprayer
running?
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