Graco FinishPro 290 Operation Manual page 36

Problem
Basic Electrical
See wiring diagram, page 63
36
What To Check
(If check is OK, go to next check)
1. Electric supply. Meter must read
105-130 Vac for 110-120 Vac mod -
els and 210-255 Vac for 230 Vac
models.
2. Extension cord. Check extension
cord continuity with volt meter.
3. Sprayer power supply cord.
Inspect for damage such as broken
insulation or wires.
4. Fuse. Check replaceable fuse on
control board (next to ON/OFF
switch).
5. Motor leads are securely fastened
and properly connected to control
board.
6. Motor thermal switch. Yellow
motor leads must have continuity
through thermal switch.
7. Brush cap missing or loose brush
lead connections. Brush length
must be 1/4 in. (6mm).
8. Motor armature commutator for
burn spots, gouges and extreme
roughness.
9. Motor armature for shorts using
armature tester (growler) or per -
form spin test, page 54.
10. Pressure control not plugged in
to control board.
基本故障排除
Basic Troubleshooting /
What To Do
(When check is not OK, refer to this column)
Reset building circuit breaker, replace building fuses.
Try another outlet.
Replace extension cord. Use shorter extension cord.
Replace power supply cord. See page 60.
Replace fuse after completing motor inspection.
See page 62.
Replace loose terminals; crimp to leads.
Be sure terminals are firmly connected.
Clean circuit board terminals. Securely reconnect
leads.
Replace Motor, page 60.
Replace Motor, page 60.
Replace Motor, page 60.
Replace Motor, page 60.
Insert pressure control connector into control board.
기본적인 문제 해결
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313797C