JUKI DP-2100 Engineer's Manual page 49

Caution in disassembling
20.Bring the needle bar to the position of its upper dead point, loosen
nut @1 , turn screw @2 , and adjust so that the bottom face of auxiliary
feed belt !3 is as high as that of main feed belt !2 . After the
adjustment, tighten nut @1 .
* The height of the bottom face of auxiliary feed belt !3 becomes
high when turning screw @2 clockwise, and low when turning it
counterclockwise.
21.Adjust auxiliary feed belt !3 to the proper tension by adjusting the
position of tension adjustment plate S !1 , and tighten setscrew !1 .
* The tension of auxiliary feed belt !3 becomes high when moving
tension adjustment plate S !1 in the direction of G, and low when
moving it in the direction of H.
22.Bring the needle bar to the position of its lower dead point, and fix
presser foot 4 to presser foot bar @4 with setscrew 3 so that the
clearance between the bottom face of presser foot 4 and needle
hole guide @3 is 0.1 mm.
* For the details of adjusting the
height of the auxiliary feed foot,
refer to "(24) Adjusting the
height of the auxiliary feed foot".
* For the details of adjusting the belt
tension,
* For the details of adjusting the
height of the presser foot,
"(25) Adjusting the height of the
presser foot".
− 45 −
Caution in assembling
refer to "(6) Adjusting the
feed belt tension".
refer to