Intermediate Problem Solving
TYPE OF PROBLEM
Spray Pattern Variations
WHAT TO CHECK | WHAT TO DO |
If check is OK, go to next check | When check is not OK, refer to this column |
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1. Spray tip worn beyond sprayer pressure capa- | 1. Replace spray tip. |
bility. | NOTE: A smaller size tip will provide |
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| longer life. |
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Motor Is Hot and Runs Intermittently
Building Circuit Breaker
Opens As Soon As
Sprayer Switch Is
Turned On.
2.Check transducer (29) for wear or damage.
3.Check pressure control (64) for smooth opera- tion.
4.Check Low output section, page 15.
1.Determine if sprayer was operated at high pres- sure with small tips, which causes excessive heat build up.
2.Be sure ambient temperature where sprayer is located is no more than 90_F (32_C) and sprayer is not located in direct sun.
3.Check motor.
1.Check all electrical wiring for damaged insula- tion, and all terminals for loose fit or damage. Also check wires between pressure control and motor. See page 22.
2.Replace transducer. See page 27.
3.Replace pressure control. See page 26.
1.Decrease pressure setting or increase tip size.
2.Move sprayer to shaded, cooler area if possible.
3.Replace motor. See page 22.
1.Repair or replace any damaged wiring or terminals. Securely reconnect all wires.
2. | Check for missing motor brush inspection plate | 2. | Correct faulty conditions. |
| gasket (see page 17), bent terminal forks or |
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| other metal to metal contact points which could |
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| cause a short. |
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3. | Check motor armature for shorts. Use an arma- | 3. | Replace motor. See page 22. |
| ture tester (growler) or perform motor test. See |
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| page 17. Inspect windings for burns. |
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Circuit breaker opens after sprayer operates for 5 to 10 minutes.
4.Check motor start board (47) by substituting with a good board.
CAUTION: Do not perform this check until motor armature is determined to be good. A bad motor armature can burn out a good board.
1.Check `Basic Problems ± Electrical' on page 13.
4. Replace board. See page 23.
Building circuit breaker opens as soon as sprayer is plugged into outlet and sprayer is NOT turned on.
Unit will not run on gener- ator but does run on AC power
1.Check ON/OFF switch (52). Be sure sprayer is unplugged! Disconnect wires from switch. Check switch with ohmmeter. The reading should be infinity with ON/OFF switch OFF, and zero with switch ON.
CAUTION: A short in motor circuit can damage switch and or motor start board (47).
2.Check electrical supply with volt meter. Meter should read 105±125 VAC.
Check the generator's peak voltage. This sprayer will not run if the peak voltage is above 190V.
1. Replace ON/OFF switch. See page 23.
2.If voltage is too high, do not operate sprayer until corrected.
Use AC power or a different generator
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