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Intermediate Problem Solving
TYPE OF PROBLEM
WHAT TO CHECK
WHAT TO
DO
If
check
is OK, go
to nexl
check
When check is not OK, refer to
this
column
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Spray pattern variations
1.
Spray tip worn beyond sprayer pressure
1.
Replace spray tip.'
capability.
NOTE A
smaller size tip will provide
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longer life.
2. Check transducer (29) for wear or damage.
3. Replace pressure control.
See
page 30.
3. Check pressure control (64)
for smooth
2.
Replace transducer. See page 30.
operation.
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4. Check Low
output
section,
oaae
17.
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CAUTION:
Do
not perform this check until
motor armature is determined to be good.
A
bad motor armature can burn out a good board.
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Circuit breaker opens after
asic Problems
-
Electrical' on
sprayer operates for
5
to 10
minutes.
..
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opens as soon as sprayer
around throat. Replace pump packings.
if
tightening tightens packings on rod, restricts
'prayer
is
turned
On.
sprayer until corrected.
-
is plugged into outlet
and
1.
If
voltage is too high, do not operate
1.
Check electrical supply with volt
meter. Meter
Building circuii breaker
should read VAC.
2.
Check tightness of pump packing nut. Over-
2. Loosen packing nut. Check for leaking
pump action, damages packings.
3.
Replace motor. See page 26.
3. Check for damaged motor.
necessary. See page 22.
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should be infinity with ON/OFF switcl
zero with switch ON.
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CAUTION: A short in motor circuit can damage
switch and or motor start board (47).
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Unit will not run on gener-
power
ator but does run on AC
1. Use AG power or a different generator
1. Check the generator's "peak" voltage. This
sprayer will not run if the peak voltage
is above
19ov.
18
308-216
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