Troubleshooting
Relieve pressure; page 6.
PROBLEM | CAUSE | SOLUTION | |
|
|
| |
E=XX is displayed | Fault condition exists | Determine fault correction from table, page 14. | |
|
|
| |
Engine won’t start | Engine switch is OFF | Turn engine switch on. | |
|
|
| |
| Engine is out of gas | Refill gas tank. Honda Engines Owner’s Manual. | |
|
|
| |
| Engine oil level low | Try to start engine. Replenish oil, if necessary. | |
|
| Honda Engines Owner’s Manual. | |
|
|
| |
| Spark plug cable disconnected or | Connect spark plug cable or replace spark plug. | |
| spark plug damaged |
| |
|
|
| |
| Oil seepage into combustion | Remove spark plug. Pull starter rope 3 or 4 times. | |
| chamber | Clean or replace spark plug. Try to start engine. | |
|
| Keep sprayer upright to avoid oil seepage. | |
|
|
| |
False tripping of WatchDog | Operating conditions out of WatchDog | Turn pressure down. Contact Graco Technical Ser- | |
system. EMPTY is dis- | parameters | vice to adjust WatchDog parameters. | |
played. Pump does not run. | Low pump output; page 8. | Operate without WatchDog active; Manual 309410. | |
|
| ||
|
|
| |
Engine operates, but dis- | Pressure control switch turned OFF | Turn on. | |
placement pump doesn’t |
|
| |
Pressure setting too low | Increase pressure. | ||
| |||
|
|
| |
| Displacement pump outlet filter dirty | Clean filter. | |
|
|
| |
| Tip or tip filter clogged | Clean tip or tip filter. | |
|
|
| |
| Broken drive belt | Replace belt. | |
|
|
| |
| Displacement pump rod seized by | Service pump. See page 16. | |
| dry paint |
| |
|
|
| |
| Connecting rod worn or damaged | Replace. See page 9. | |
|
|
| |
| Drive housing worn or damaged | Replace. See page 10. | |
|
|
| |
| Electrical power is not energizing clutch field | Check wiring connections. Page 23. | |
|
| Reference pressure control repair. Page 14. | |
|
| Reference wiring diagram. Page 23. | |
|
| With pump switch ON and pressure turned to | |
|
| MAXIMUM, use a test light to check for power be- | |
|
| tween clutch test points on control board. | |
|
| Remove | |
|
| measure resistance across clutch coil. At 70_ F, | |
|
| the resistance must be 1.7 ±0.2Ω; if not, replace | |
|
| pinion housing. | |
|
| Have pressure control checked by authorized Gra- | |
|
| co dealer. | |
|
|
| |
| Clutch is worn, damaged, or incorrectly | Replace clutch. Page 11. | |
| positioned |
| |
|
|
| |
| Pinion assembly is worn or damaged | Repair or replace pinion assembly. Page 11. | |
|
|
|
309411 7
