Graco FinishPro II 295, Операция - Ремонт - Запчасти

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Basic Troubleshooting /
基本故障排除
/
기본적인 문제 해결
40 333119D
Low Fluid Output
1. Worn or clogged spray tip.
Relieve pressure , page 19. Replace or clean tip.
Refer to gun instruction manual, 313347.
2. Verify pump does not continue
to stroke when gun trigger
is released.
Service Pump , page 60.
3. Prime valve leaking.
Relieve pressure , page 19. Then repair Prime
Valve , page 62.
4. Suction hose connections.
Tighten any loose connections. Check o-rings
on suction hose tube.
5. Electric supply with volt meter.
Meter must read 105-130 Vac for
110-120 Vac models and 210-255
for 240 Vac models. Low voltages
reduce sprayer performance. Reset building circuit breaker; replace building fuse.
Repair electrical outlet or try another outlet.
6. Extension cord size and length. Replace with a correct, grounded extension cord,
page 16.
7. Leads from motor to circuit
board for damaged or loose
wire connectors. Inspect wiring
insulation and terminals for signs of
overheating. Be sure male terminal pins are centered and firmly
connected to female terminals. Replace any loose
terminals or damaged wiring. Securely reconnect
terminals.
8. Worn motor brushes which must
be 1/4 in. (6 mm) minimum. Replace Motor , page 36.
9. Motor brushes binding in brush
holders. Clean brush holders. Remove carbon dust by using
compressed air to blow out brush dust.
10. Low stall pressure. Turn pressure
control knob fully clockwise.
Replace Pressure Control Assembly , page 62.
11. Motor armature for shorts by using
an armature tester (growler) or per-
form spin test, page 56.
Replace Motor , page 36.
12. Pump is primed. Prime pump, page 22.
13. Inlet and outlet balls are not stuck. Inlet: Remove suction tube and place pencil into inlet
housing to dislodge ball and allow proper priming.
Outlet: Insert screwdriver in slot and remove
Easy-Access door, page 15. Unscrew outlet valve
with a 3/4 in. socket. Remove and clean assembly.
Problem
What To Check
(If check is OK, go to next check)
What To Do
(When check is not OK, refer to this column)