Optional 550-Sheet Feeder Feed Clutch Assembly - Xerox Phaser 4500 Service Manual

General Troubleshooting

Optional 550-Sheet Feeder Feed Clutch Assembly

4-46
Troubleshooting Reference
Applicable Parts
Feed clutch assembly
Optional 150-sheet paper
feeder
550-sheet paper cassette
550-sheet feeder PWBA
Clutch/Sensor harness 1
Clutch/Sensor harness 2
Feeder harness 2
HVPS/engine logic board
Feeder harness 1
Troubleshooting Procedure
Steps Actions and Questions
1 Check Clutch/Sensor harness 1:
1. Disconnect P/J855.
2. Disconnect P/J853.
3. Test each conductor between J855 <=>
J853 for continuity.
Is each conductor continuous?
2 Check Clutch/Sensor harness 2:
1. Disconnect P/J85 from the 550-sheet
feeder PWBA.
2. Disconnect P/J855.
3. Test each conductor between J85 <=>
J855 for continuity?
Is each conductor continuous?
Check the resistance of the feed clutch
3
assembly:
Measure the resistance of the clutch
between P/J853-1 <=> P/J853-2.
Does the resistance measure 172 ohm +/-
10% (at 20° C)?
4 Check the 550-sheet feeder PWBA:
1. Disconnect P/J83 from the 550-sheet
feeder PWBA.
2. Test the following points for continuity:
P83-1 <=> P85-1
P83-2 <=> P85-2
Are both continuous?
Wiring and Plug/Jack Map References
"550-Sheet Feeder Signal Diagram" on
page 10-33
"550-Sheet Feeder General Wiring Diagram" on
page 10-32
"550-Sheet Feeder Plug/Jack Locator" on
page 10-12
Yes
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 5.
Phaser 4500/4510 Service Manual
No
Replace
Clutch/
Sensor
harness 1.
Replace
Clutch/
Sensor
harness 2.
Replace the
feed clutch
assembly
(page 8-91).
Replace the
550-sheet
feeder PWBA
(page 8-85).