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1. When mounting the second thread tension
, confirm in advance that the pin block
of the AT link unit
(front)
is exactly settling in the hole of the thread tension pressing pin
. If you try to mount the second
thread tension
forcedly with the pin area left disengaged, this may result in breakage in the thread tension
pressing pin
or malfunction.
2. After the completion of mounting, make adjustments of (23) Floating amount of the thread tension disk and
(47) Adjustment of thread take-up spring; 1) Stroke adjustments.
Procedures of assembling