Machine head
Service Instructions 745-35-10 S/745-35-10 A - 02.0 - 04/2017 35
4. Slip spring (15) and sleeve (14) onto the thinner shaft extension of the
decoupling bar (16).
5. Insert the thicker shaft extension of the decoupling bar (16) into the
needle bar (3) from the bottom until it exits at the top of the locking
screw (17).
6. Successively insert conical bolt (13) with the cylindrical portion facing
up, the pre-assembled coupling bar (2), spring (7) with spring (6) and
the spring counter bearing (4) into the needle bar.
7. Screw the spring counter bearing (4) firmly in place with the screw (5).
8. Repeatedly press down on the decoupling bar (16) to check whether
the linkage can move inside the needle bar (3) with enough free move-
ment and resilience.
3.8.5 Assembling needle bars into the needle bar linkage
Fig. 23: Assembling needle bars into the needle bar linkage (1)
To assemble the needle bars into the needle bar linkage:
1. Insert the needle bar (4) into the needle bar linkage (1) from the bottom.
(1) - Needle bar linkage
(2) - Annular slot
(3) - Securing halves
(4) - Needle bar
(5) - Coupling ball top
(6) - Coupling ball holes top
(7) - Coupling balls (3x)
(8) - Coupling ball holes bottom
(9) - Crosshead
(10) - Clamping ring
(11) - Needle holder
(12) - Screw
(13) - Decoupling bar
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