IBM 6580 User Manual

AC Drive Motor Removal
1. Turn the system power off.
2.
Disconnect the diskette AC power
cable from Connector 8.
3. Perform the Cover Removal.
4. If necessary, perform the Right
Diskette Drive Removal.
5. Disconnect the AC drive motor pow-
er cable •
6. Remove the AC drive motor belt
e.
CAUTION
The motor case becomes HOT
after continuous use.
7. On all domestic machines or World
Trade machines (before EC841505),
remove
the two fan enclosure
mounting screws 0 and remove the
fan '10-. On World Trade machines
with EC841505 and later, remove
the two mounting screws '01 and
remove the AC drive motor 0
8. Loosen the setscrew 0 , then
remove the AC drive motor
pulley/fan assembly •.
DANGER
High voltage may be present at
capacitor terminals.
9. Remove the two insulator caps 0
from the capacitor terminals.
10. Discharge the capacitor by jumper-
ing its terminals with a
large-bladed screwdriver.
11. Remove the AC drive motor leads
0; from the capacitor terminals.
12. Remove the AC drive
capacitor leads from the
guide 0; on the casting.
motor
cable
13. Remove the two insulator caps from
the AC drive motor capacitor
leads.
14. On all domestic machines or World
Trade machines (before EC841505),
remove
the two remaining motor
mount screws • and remove the
AC drive motor '.. On World
Trade machines with EC841505 and
later, skip this step.
AC Drive Motor Replacement
To reinstall the AC drive motor,
observe the following exceptions ·and
reverse the steps in the removal pro-
cedure.
1. When installing the AC drive motor
leads on the capacitor, note the
cable numbers to determine which
lead goes on which terminal.
2. When installing the pulley/fan
assembly on the AC drive motor,
ensure that the setscrew is cen-
tered on the flat surface of the
motor shaft.
3. Place the pulley/fan assembly on
the AC dr i ve motor shaft with a
gap ~! of 0.5 mm ± 0.1 mm (0.020
inches ± 0.004 inches) between the
motor face and the fan hub.
7-44 IBM Displaywriter Product Support Manual

IBM 6580 Specifications

General

Brand	IBM
Model	6580
Category	Desktop
Language	English