409-1993
AMP-TAPETRONIC Machines 69875 and 69875-1
Rev J
21 of 46
Tyco Electronics Corporation
MALFUNCTION AND/0R SYMPTOM
PROBABLE CAUSE
CORRECTIVE ACTION
Drive motor does not operate when
power switch is set to the ON"
position.
1. If power indicator is lit:
(a) tape release lever is raised.
(b) drive motor is defective
Lower tape release lever.
Replace drive motor.
2. If power indicator is not lit and the work
light lights when the work light switch
is set to the ON" position,
the power switch is defective.
Replace power switch.
3. If power indicator is not lit and work
light does not light when work light
switch is set to the ON"
position, the line cord is defective.
Replace line cord.
Machine does not cycle with main
power switch in ON" position Ċ
(drive motor not operating).
One of the following components is
defective:
(a) drive motor.
(b) power switch.
(c) line cord.
Repair or replace as necessary.
Machine does not cycle (drive motor
operating and flywheel not rotating).
1. Broken belt
2. Loose motor pulley
Replace belt as described in 409-5128.
Tighten setscrew.
Machine does not cycle (drive motor
operating and flywheel is rotating).
1. One of the following conditions
exists in the transmission:
Refer to 409-5128 and perform the
following corrective action.
(a) broken or missing solenoid
link pins.
Check for broken or missing solenoid
link pins. Replace pins, as required.
(b) broken, missing, or weak
back-up latch return spring.
Check for broken, missing, or weak
back-up latch return spring, causing
back-up latch not to engage stop
collar. Replace spring if required.
(c) broken, missing or weak
clutch dog spring.
Check for broken, missing, or weak
clutch dog spring, causing clutch dog
not to engage drive plate. Replace
spring, if required.
(d) worn or broken clutch dog.
Check for worn clutch dog and/or
stop bar by raising stop bar and
observing clutch dog for motion
(e) worn or broken stop bar.
observing clutch dog for motion.
Replace clutch dog and/or stop
bar as required.
(f) excessive accumulation of
lubricant.
Hand cycle the machine (Section 4) and
observe whether or not excessive
accumulation of lubricant, dirt or
th f i
tt
t l t h
(g) excessive accumulation of
dirt or other foreign residue.
other foreign matter prevents clutch
dog from moving when released by stop
bar. Clean transmission, if required.
2. One of the following electrical
components may be defective:
(a) solenoid.
(b) foot switch.
(c) trip control box.
Refer to Figure 6 and Figure 7 (the wiring
diagram and schematic, respectively) for
troubleshooting electrical components.
3. Machine may have been hand-
cycled, resulting in the stop collar
not contacting the stop bar. This
will produce a clicking" noise.
Turn OFF" main power switch and
disconnect machine from power supply.
Gain access through either of the lift holes
of machine and push down on top of ball
joint assembly until assembly bottoms.
Connect power cord, place power switch
in the ON"position and operate machine.
Figure 17 (cont’d)
