Machine head
32 Service Instructions 745-35-10 S/745-35-10 A - 02.0 - 04/2017
Fig. 20: Removing a needle bar from the needle bar linkage (2)
4. Loosen screws (12) and (10).
5. Remove the guide rail (11).
6. Press both decoupling bars (5).
7. Slide the crosshead (13) down to half the needle bar stroke.
8. Loosen the safety bolt (14) of the clamping ring (16) along with the
fastening screw (15) located below.
9. Remove the two securing halves (7).
They are seated in the annular slot (6) and become visible by sliding
down the clamping ring (16).
10. Move the switching block to a position where the two decoupling
bars (5) are not actuated.
11. Slowly slide the crosshead (13) up the needle bar until the three top
coupling balls (8) pop out.
Important
Make sure not to lose the coupling balls - they are spring-loaded.
12. Pull the needle bar down and out of the needle bar linkage (4).
Caution: This process may cause the three bottom coupling balls (9)
to fall out of the ball holes of the needle bar.
(4) - Needle bar linkage
(5) - Decoupling bar
(6) - Annular slot
(7) - Securing half
(8) - Coupling ball top
(9) - Coupling ball bottom
(10) - Screw
(11) - Guide rail
(12) - Screw
(13) - Crosshead
(14) - Safety bolt
(15) - Fastening screw
(16) - Clamping ring
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