Replacement; Solenoid And Idler Removal And Replacement - IBM 5280 Maintenance Information Manual

349
SOLENOID AND IDLER REMOVAL AND
REPLACEMENT
Removal
1. Power off.
2.
3.
4.
5.
6.
DANGER
Capacitor discharge voltage might be present at the
socket when the AC drive motor power cable is
disconnected.
Disconnect the AC drive motor power cable
1m .
(51TD) Insert a strip of clean paper between the
heads
0,
or insert a scratch diskette.
Close the diskette locking lever
0 .
Loosen the bail lever screw
m.
Push the bail
m
inward slightly and disconnect the
bail actuator cable eyelet
iII
from the bail lever
Ill.
7. Open the diskette locking lever.
8. Remove the AC drive motor belt
D.
26 Head Load Solenoid and Bail
349
9. Disconnect the solenoid cable connector
a
from the
diskette drive control card
D.
10. Remove the solenoid, the bracket, and the cable as a
unitD·
11. Loosen the solenoid locking screw
II
and unscrew
the solenoid
II
from the bracket. (The solenoid and
the bail actuator cable are installed as a unit.)
Replacement
To reinstall the solenoid and idler, observe the following
exceptions and reverse the steps in the removal procedure.
1. When you reinstall the bail actuator cable, ensure that
the eyelet crimp is facing out.
2.
3.
If the bail actuator cable is twisted, turn the solenoid
plunger
0
by hand until the cable is straight.
After the replacement procedure is completed,
perform the head gap adjustment (see 345).