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PROBLEM
CAUSE
CORRECTION
Pump motor cycles on and off rapidly.
System pressure is reaching
Decrease the system pressure by
(OK for short periods of time)
maximum setting of pump's pressure
increasing the opening of the bypass
switch,
valve
Pressure too low
1. Bypass valve open too far
1 Decrease opening of bypass valve
2. Tank strainer dirty.
2 Remove strainer and clean.
Pressure OK but boom spray weak.
Nozzles strainers dirty.
Remove strainers and clean
Boom spray pattern does not overlap
1. Nozzles set too low.
1 Adjust boom arms See page 9
enough in the middle.
2. Nozzles don't point straight down
2 Rotate nozzle opening down.
12
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