Service manual

S-4000 ISBH+I Omron
Revised 12/2008
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E - MACHINE ADJUSTMENTS
5. BITE
Before the bite adjustment, remove the pulley cover
➋ and the head cover ➊. Loosen the indexer clamp
feet screw ➌ and remove the indexer clamp feet Í
from the machine. Disconnect the air tubes ➎ from
the thread puller cylinder and tubes ➏ from the clamp
feet cylinder.
1. Bite cam
a) Check if the machine is in the home
position.
b) Tilt the machine on the rest pin ➐. If the
adjustment is correct, the second cam
locking screw ➑ (counter clockwise of
the bite cam ➒) must be roughly
perpendicular to the bedplate casting.
c) Adjust the position of the bite cam so that
all of the needle bite motion occurs equally
with the needle out of the work piece on the up
and down stroke.
Before the bite adjustment, remove the pulley cover ➋ and the head cover ➊. Loosen the indexer clamp feet
screw ➌ and remove the indexer clamp feet Í from the machine. Disconnect the air tubes ➎ from the thread
puller cylinder and tubes ➏ from the clamp feet cylinder.
Note: There must be no bite movement before the needle ➓ comes out of the work nor after it has
descended into the work - see illustration. Tighten both locking screws ➑ securely.