IBM 3274 51C Maintenance Information page 224

Head Load Solenoid Activated
Plunger
Solenoid
Rubber Stop
Carriage Assembly
Diskette
0.3
to
0.7
mm
(n012 to 0.028 inch)
He,ld Load Solenoid Deactivated
Head/Carriage Assembly
G31SD-3
to 4
mm
(0.118 to 0.157 inch)
51TD-2 to
3
mm
ReadIWrite Head
(0.079 to 0.118 inch)
31 SD Control Card
4 1
tD::3l
PTXCP
BA
00
1
o
o
TP24V
o TPLED
[;]]!
SCP
2 1 4 1
TPG02
0
TPHOS
0
------I--tEOC~-
Figure E-28. Solenoid and Bail Service Check
CD
AC Drive Motor
Power Cable Cable Bail
lever Screw
Appendix E. IBM 31S0 Diskette Drive Maintenance E-35