31
Troubleshooting
Troubleshooting Guidelines
Problem
Cause
Solution
No output or
insufficient
pressure at
spray tip(s)
(1) Air leak in suction side of system
(2) Problem with pump
(3) Control valve malfunctioning
(4) Malfunctioning controller
(5) Nozzle strainer(s) or tip(s) clogged
(6) Spray tips not proper size
(7) Return valve open too much
(8) Pressure shows on gauge but there
is no pressure on outside tips on
boom
(1) See above
(2) See above
(3) Replace control valve;
Replace pressure adjusting switch;
See controller owner’s manual or
contact Wylie Spray Center
(4) See above
(5) Clean strainer(s) or tip(s), or replace
(6) Replace with proper tip
(7) Partially or completely close return valve
(8) Remove outside tips from both sides of
boom and flush entire system with clean water
No output
from one sec
-
tion of sprayer
(1) Boom switch turned off
(2) Malfunctioning ball valve
(3) Malfunctioning boom switch
(1) Turn boom switch on
(2) Repair or replace ball valve
(3) Replace boom switch
Spray pattern
uneven at one
tip
(1) Trash in tip orifice
(2) Damaged tip orifice
(3) Worn or damaged tip
(1) Clean tip
(2), (3) Replace tip
Spray solution
not mixing well
(1) Agitator closed
(2) Clogged or damaged agitator
(3) Chemical incompatibility
(1) Open agitator ball valve
(2) Replace agitator assembly
(3) Mix a small sample in a 5 gal. bucket first
Boom not
level
(1) One end of boom weighted with
mud, etc.
(2) Tilt cylinders not set uniformly
(1) Clean boom
(2) Activate tilt cylinder to level boom
Primary wing
does not fold
out in line with
primary
(1) Fold cylinder needs adjustment
(1) Shorten cylinder clevis to fold in
(2) Lengthen cylinder clevis to fold out
Boom fold/tilt
functions will
not operate
(1) Hydraulic circuit not engaged
(2) Toggle/Joystick switch not engaged
(3) Boom control panel not powered
(1) Engage hydraulic circuit
(2) Engage toggle/joystick switch
(3) Check hot/ground connections for panel
One fold/tilt
function will
not operate
(1) Malfunctioning panel switch
(1) Replace panel switch
Secondary
wing does not
fold out in line
with primary
(1) Tie rods need uniform adjustment
(1) Lengthen front tie rod and shorten back tie
rod to fold in
(2) Shorten front tie rod and lengthen back tie
rod to fold out
