IBM 1402 Reference Manual page 12

TIMING
This adjustment ensures that read feed dynamic timer
is in time with clutch at engaging time.
1. Block the clutch armature attracted.
2. Crank machine and listen or feel for latch keeper
to fall behind drive arm. This should happen at
315° ±1°.
3. If index is not at 315° ± 1° when latch keeper
falls behind drive arm, loosen clamped hub on in-
dex drive shaft and turn index to 315°.
4. Tighten clamped hub.
NOTE:
If timer index is moved, brush and CB
timing will have to be 'Checked.
Clutch Pulley Assembly
The clutch pulley includes the dogs and arms.
REMOYAL
1.
If same clutch assembly is to be used, spot mark
clutch pulley and picker knife cam shaft pulley
to belt to retain RLCB's, solar CB, and picker
knife timing.
2. Remove file feed drive belt.
3. Loosen clutch pulley belt idler.
4. Remove grease fItting on end of clutch shaft.
5. Loosen retaining clamp and remove clamp and
file feed drive pulley together.
6. Remove clutch pulley drive belt.
SLIGHT DRAG
75% OR MORE
LA TCH SURFACE
LA TCH KEEPER
Figure 3-:3". Reader Clutch Adjustments
NOTE:
ADJUST SCREWS
FOR .020" TO
.022" CLEARANCE
HERE
CHECK .002"
.008" UNLATCHING CLEARANCE
SHOULD GIVE 75% (OR MORE)
LA TCH SURFACE CONTACT (SEE 8)
POSITIONING BLOCK
3-3