SECTION 4 - TROUBLESHOOTING
4.2
PROBLEM PROBABLE CAUSE CORRECTION
6. Not getting application rate for a
given pressure setting.
A. Controller in Rate 1 or Rate 2 position.
Move Rate Control Switch to Manual
position & hold Increase switch up with
Master Switch & at least one boom
switch in ON position.
B. Restriction in plumbing.
a) Clean/Replace Main Line Strainer
(strainer may look clean, but holding up
to a light can reveal possible restriction).
b) Check for restriction on suction side
of pump. (Rinse Ball from sprayer tank
could be in sump.) (Mouse nest, rag(s)
or other contamination from tank might
have gotten into the plumbing.)
c) Clean/Replace Boom Line Strainers
d) Clean/Replace Nozzle Body Strainers
and/or spray tips.
C. Crossover Plumbing Valve in OPEN
position.
Turn Crossover Plumbing Valve to
CLOSED position.
D. Tank Rinse Valve left on. Turn Tank Rinse Valve to off.
E. Cracked or split pump impeller (dam-
aged impeller is capable of developing
some pressure, but not able to product
volume).
Replace damaged impeller.
7. Unable to maintain spray rate at
usual speed
Restriction in plumbing.
(SEE ABOVE) á
8. Steady Alarm/Rate 0.0 Pressure too
low
No speed signal to Controller
a) Select SPEED to verify zero
speed reading.
b) Conrm correct SPEED CAL #
c) Check speed sensor for func-
tionality.
9. Stady Alarm/Rate 0.0 Pressure too
high
No Flow signal to Controller
a) select VOL/MIN key to verify
zero volume reading.
b) Conrm correct METER CAL
#.
c) Check wiring for possible
breaks/kinks (common on draw-
bar/cab articulation points).
d) Verify meter impeller can spin
freely.
e) Replace owmeter transducer
or entire owmeter.
10. Intermittent Alarm “Low Level”
ashes
Low Limit alarm activated
Increase speed when possible - or
reset/disable Low Limit setting.
See Raven Manual.
11. Intermittent Alarm “Low Level”
ashes
Low Tank Level alarm activated
Enter correct TANK VOL when
lling sprayer tank - or disable
Low Level alarm. See Raven
Manual.
4.1. SPRAYER SYSTEM TROUBLESHOOTING
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