Pressure Control
Control Board Diagnostics
1.Fig. 15. Remove five screws (307) and cover (322).
2.Start sprayer.
LED | SPRAYER OPERATION |
BLINKS |
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3.Turn ON/OFF switch ON.
4.Observe LED operation and reference following table:
INDICATES | WHAT TO DO |
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Two times | Sprayer shuts down and LED contin- | Run away pressure. |
repeatedly | ues to blink two times repeatedly | Pressure greater than |
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| 4500 psi (310 bar, 31 |
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| MPa). |
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Three | Sprayer shuts down and LED contin- | Pressure transducer is |
times re- | ues to blink three times repeatedly | faulty or missing |
peatedly |
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1.Check pressure transducer con- nection at control board
2.Replace pressure transducer
3.Replace control board
1.Check pressure transducer con- nection at control board
2.Replace pressure transducer
3.Replace control board
Four times | Sprayer shuts down and LED contin- | Generator voltage is |
repeatedly | ues to blink four times repeatedly | low |
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1.Increase engine throttle
2.Check wiring connections
3.Service Honda engine alternator
Five times | Sprayer shuts down and LED contin- | High clutch current |
repeatedly | ues to blink five times repeatedly |
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1.Check clutch
2.Measure 1.7 ±0.2Ω across clutch field at 70_F
3.Replace clutch field assembly
Six times | Sprayer shuts down and LED contin- | High clutch temperature | 1. | If clutch is new, let sprayer cool |
repeatedly | ues to blink six times repeatedly |
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| down and then restart |
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| 2. | Inspect clutch. Replace clutch if |
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| there is excessive wear. |
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| 3. | Remove pump pin, separate pin- |
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| ion housing from clutch housing. |
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| Rotate rotor clockwise to check |
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| for excessive drag. |
14 08870