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Facit 4070 Service Instruction page 18

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18
5.4
CHECK LIST
LIMITS
Unactuated
position of surge takeup arm
96 - mm
edge of punch
Torque
exerted
by surge
takeup
arm
80 - 100
0.78 - 0.98
40 - 60
0.39 - 0.59
e Braking
force on supply flange
400 t 150
3.92 £1.47
e Unwinding
force
max 50
max 0.49
e Force exerted against
takeup flange by
winding motor
600 - 850
5.88 - 8.33
That sensor
arm moves
easily
@ Torque exerted
by reversing
buffer arm
180 = 20
1.76 = 0.20
e Fan motor
blows
air out through
side
crevices
Force
exerted
against
tape
by spring-
mounted
tape guide
max 25
max 0.25
Force exerted
by pinch roller
against
capstan
600 * 50
5.88 ¢ 0.49
Pulling
force of winding motor
min 950
min 9.31
Pulling
force of stepper motor
min 200
min 1.96
Inter-row
spacing
Punching
action
Tape check
functions
5.5
TEST POINTS
DESCRIPTION
REMARKS
Low at holes when reading into the buffer
register.
High at read and stored bit/s
(hole/s).
Low at a manual
feed,
for blocking the buffer reg.
inputs.
@0@|F
High,
clock
pulse for the stepper motor counter.
Read-in
pulse to the buffer register
in TTL version.
Low O-setting
FFMF and buffer register.
High (TTL) Low (DTL) during TF (10.5 ms).
Stepper motor
counter
position.
Low at stepper
motor
drive.
Low pulses
for current
control.
High during speed limit.
High (TTL) Low (DTL) during TP.
High
(TTL) Low
(DTL) at feed
to corresponding
motor
winding.
Low trig pulse for current
control.
Low during drifting
in the switch
regulator.
Level
at current
control.
Low during motion
(High at home position).
Low at accepted
24V level.
High at switch
regulator
on
(DTL, Off).
High (TTL) Low
(DTL) during
punching.
High during punching.
When
low the MF flip-flop
and the
buffer
register
are O-set.
QOLO
GOOOOOOO©OLH
©©
High at manual
feed,

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