3N0/3NK/3PD/3PG
1-4-47
(14)
DF eject clutch
does not operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
DF eject clutch and DF main PWB (YC14)
2. Defective solenoid.
Replace the DF eject clutch.
3. Defective PWB.
Replace the DF main PWB and check for correct operation
(see page 1-5-2).
(15)
BR conveying
motor does not
operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
BR conveying motor and BR PWB (YC2)
2. Defective drive trans-
mission system.
Check if the rollers and gears rotate smoothly. If not,
grease the bushes and gears. Check for broken gears and
replace if any.
3. Defective motor.
Replace the BR conveying motor .
4. Defective PWB.
Replace the BR PWB and check for correct operation.
(16)
Mailbox drive
motor does not
operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Mailbox drive motor and MB main PWB (YC5)
2. Defective drive trans-
mission system.
Check if the rollers and gears rotate smoothly. If not,
grease the bushes and gears. Check for broken gears and
replace if any.
3. Defective motor.
Replace the Mailbox drive motor.
4. Defective PWB.
Replace the Mailbox main PWB and check for correct oper-
ation.
(17)
Punch motor does
not operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Punch motor and Punch PWB (YC4)
2. Defective drive trans-
mission system.
Check if the rollers and gears rotate smoothly. If not,
grease the bushes and gears. Check for broken gears and
replace if any.
3. Defective motor.
Replace the Punch motor.
4. Defective PWB.
Replace the Punch PWB and check for correct operation.
(18)
Punch slide motor
does not operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Punch slide motor and Punch PWB (YC3)
2. Defective drive trans-
mission system.
Check if the rollers and gears rotate smoothly. If not,
grease the bushes and gears. Check for broken gears and
replace if any.
3. Defective motor.
Replace the Punch slide motor.
4. Defective PWB.
Replace the Punch PWB and check for correct operation.
Problem
Causes
Check procedures/corrective measures
Summary of Contents for AK 740
Page 1: ...Service Manual RFXPHQW LQLVKHU D 07 3 LUVW GLWLRQ Date 2 0 20 3 SM06 ...
Page 2: ...Service Manual RFXPHQW LQLVKHU D 07 3 LUVW GLWLRQ Date 2 0 20 3 SM06 ...
Page 4: ...Revision history Revision Date Pages Revised contents ...
Page 5: ...This page is intentionally left blank ...
Page 11: ...This page is intentionally left blank ...
Page 17: ...3N0 3NK 3PD 3PG 1 1 4 2 Mail box option Figure 1 1 2 1 2 1 Trays 1 7 2 Mailbox cover ...
Page 29: ...3N0 3NK 3PD 3PG 1 2 10 This page is intentionally left blank ...
Page 45: ...3N0 3NK 3PD 3PG 1 3 16 This page is intentionally left blank ...
Page 129: ...3N0 3NK 3PD 3PG 2 2 9 This page is intentionally left blank ...
Page 155: ...1 1 INSTALLATION GUIDE DF 791 3000 sheet finisher Installation Guide ...
Page 170: ...AK 740 Bridge unit Installation Guide ...
Page 172: ...MT 730 B Mail box Installation Guide ...