Troubleshooting
WARNING
INJECTION HAZARD
To reduce risk of serious injury, including fluid injection or splashing in eyes or on skin, or injury from moving parts, always follow Pressure Relief Procedure Warning, page 4, before checking, adjust- ing, cleaning or shutting down sprayer.
Check everything in chart before disassembling sprayer.
PROBLEM | CAUSE | SOLUTION | |
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Engine won’t start | Engine switch is OFF | Turn engine switch on. | |
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| Engine is out of gas | Refill gas tank. Honda Engines Owner’s Manual. | |
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| Engine oil level low | Try to start engine. Replenish oil, if necessary. | |
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| Honda Engines Owner’s Manual. | |
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| Spark plug cable disconnected or | Connect spark plug cable or replace spark plug. | |
| spark plug damaged |
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| Oil seepage into combustion | Remove spark plug. Pull starter rope 3 or 4 times. | |
| chamber | Clean or replace spark plug. Try to start engine. | |
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| Keep sprayer upright to avoid oil seepage. | |
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Engine operates, but | Pressure control switch turned OFF | Turn on. | |
displacement pump |
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Pressure setting too low | Increase pressure. | ||
doesn’t | |||
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| Displacement pump outlet filter dirty | Clean filter. | |
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| Tip or tip filter clogged | Clean tip or tip filter. | |
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| Broken drive belt | Replace belt. | |
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| Displacement pump rod seized by | Service pump. See page 14. | |
| dry paint |
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| Connecting rod worn or damaged | Replace. See page 7. | |
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| Drive housing worn or damaged | Replace. See page 8. | |
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| Electrical power not energizing clutch field | Check wiring connections. See page 20. | |
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| Reference control board diagnostics. See page 13. | |
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| With pressure control switch ON and pressure | |
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| turned to MAXIMUM, use a test light to check for | |
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| power between clutch terminals on control board. | |
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| Remove black clutch wires from control board and | |
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| measure resistance across wires. At 70_ F, the | |
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| resistance must be between 1.7 ±0.2Ω; if not, re- | |
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| place pinion housing. | |
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| Have pressure control checked by authorized Gra- | |
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| co dealer. | |
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| Clutch worn or damaged | Service. See page 9. | |
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| Pinion assembly worn or damaged | Service. See page 9. | |
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