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SOLAR CELL CB .....
I---~.I~
READER
DRIV
E
~I-I!!~~~l~
MOTOR
-60
V
OLT
SUPPLY
PC (PUNCH CONNECTORS)
Figure 2-2. 1402 Rear View
DRIVE
ARM
SECU RED TO
PULLEY
I
NTERM
EDIA TE
ARM
PI
V
OTS
O
N THIS HUB
I
N TERM
EDIA TE
ARM
DOG
Figure 2-3. Clutch Assembly
2-2
PUNCH DRI
V
E
MOTOR
To see the engaging action of the clutch, assume
the clutch is latched as shown in Figure 2-4.
Impulsing the magnet releases the latch and allows
the intermediate arm to move in relation to the drive
arm. The intermediate arm moves clockwise due to
the spring-loaded dog and detent exerting force on the
control studs. As the intermediate arm moves, the
dog and detent are allowed to engage the ratchet and
rotate the mechanism that drives the feed knives and
controlled feed rolls.
Unless the clutch magnet is again impulsed, the
clutch will disengage when the opposite end of the
arm strikes the latch. The intermediate arm, having
moved clockwise in relation to the drive arm, will
strike the latch first.
The drive arm continues to
move, and in so doing, causes the dog and detent to
be cammed away from the ratchet by the motion of
the pivot studs with reference to the control studs on
the intermediate arm. Inertia carries the drive arm
forward to strike the latch, and the keeper falls be-
hind it to hold the clutch latched at 315
0
.
Clutch Adjustments
The read clutch may be adjusted either in the machine
or with the clutch drive unit removed from the base.
Steps 1 through 4 should be performed when a new
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