Hardi ES 50, Operator'S Manual

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HARDI
®
GAS ENGINE ESTATE SPRAYER OPERATOR’S MANUAL
9.0 TROUBLESHOOTING
Problem
1. Lack of Pressure
2. Pressure jumping
3. Liquid leaks from
bottom of pump
4. No spray from
spraygun or boom
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 pump valves for
obstructions and wear.
Replace valves if necessary.
(Section 7.5)
E. 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. Replace diaphragm(s).
(Section 7.5)
A. Check suction tube and
fittings.
B. Check suction line from tank
to pump for leaks.
C. Check tightness of pump
diaphragm and valve covers.
(Section 7.5)