Setting The Retention Spring On The Looper - DURKOPP ADLER 610 Service Instructions Manual

Setting the looper

9.7 Setting the retention spring on the looper

Check correct setting
When the looper moves from right to left the needle thread loop (4) must
slide to above the holding point (1) between the retention spring (2) and
the looper (3).
When the looper moves from left to right the needle thread loop should
be held at the holding point (1) until the descending needle has entered
the thread triangle on the left in front of the needle thread loop (4).
As the needle moves to its upper position and the looper moves to the left,
the needle point should pass the retention spring (2) at a distance of ap-
prox. 0.5 mm.
Faults due to incorrect setting
• Missed stitches
• Thread breakage
Cover
Remove the covers on the base plate ( Section 3.5.4, pg. 13)
Remove the throat plate ( Section 3.5.5, pg. 14)
Fig. 46: Retention spring on the looper
(1) - Holding point
(2) - Retention spring
Service Instructions 610/630 - 00.0 - 10/2014
WARNING
Risk of injury
Risk of crushing from moving parts
Switch off the sewing machine before setting the retention
spring.
④
①
②
③
(3) - Looper
(4) - Needle thread loop
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