Technical Manual & Parts Lists
23
Setting the Height of Feed Bar
When the feed bar is set at the correct height,
the feed lift link clamp will be aligned with the rock
shaft timing flat. To adjust, make certain that the feed
lifting crank timing screw, Fig. 19, engages the shaft
spot correctly. Loosen the clamp screw and move the
feed lift clamp link to the correct position. Then
tighten the clamp screw.
Centralizing the Feed Dog
Sidewise Setting
The needle should enter the needle hole of the
feed dog with the same clearance between the needle
and the left or right side of the hole. To adjust, loosen
the feed dog screws, Fig. 20. Move the feed dog until
the correct clearance is attained. Hold in position,
and tighten the feed dog screws.
Additional adjustment, if necessary, may
be attained by loosening the four shaft collar set
screws, the two rock shaft crank clamp screws,
Fig. 20, and the feed lifting clamp screw, Fig. 19.
Move the complete assembly to required position
and tighten screws.
Lengthwise Setting
The feed dog should clear the ends of the
feed slots in the throat plate equally at both ends
of the feed travel. To adjust, set the feed for the
desired stitch length. Loosen the two rock shaft
crank clamp screws, Fig. 20. Move the feed
rocker forward or backward until the correct
positioning is attained. Then tighten the two
clamp screws.
Setting the Height of the Feed Dog
When the feed dog height is set correctly,
approximately the full depth of the teeth will
show above the throat plate. To adjust, loosen the
lock nuts, Fig. 21, and slightly loosen the feed
dog clamping screw. To raise the feed dog turn
the jack screw clockwise; to lower, turn the jack
screw counter-clockwise and tap the feed dog
down. When the correct setting is attained,
tighten the clamping screws and lock the nuts.
Summary of Contents for 1345-6A
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