Baby Lock BLDY, Руководство по обслуживанию, Страница: 260 / 311

Application of
Assembly
3 - 162
Needle-presser module
Application o
f
Assembly
Application of
Assembly
11
Attachment of Needle thread block, Needle bar hook stand assy and Needle bar assy
1. Set the needle thread plate to the needle block. Attach the needle bar thread guide Q, needle block and
needle thread guide spring to the needle bar with the screw (screw SM2.38). Tighten the needle clamp
screw to the needle block.
*Key point
• Make sure that there is no gap between the needle bar thread guide Q and the tip of needle thread guide
spring.
• Make sure that there is 0.3 to 0.65 mm gap between the needle block and the right side of needle bar thread
guide Q.
2. Insert the needle bar into the W presser adjust plate, needle bar supporter assy, needle bar crank rod
assy, needle thread block, needle bar hook stand assy, needle bar presser spring (XC6254),
washer,thrust and needle bar supporter assy, then tighten the two screws (set screw, socket (FT)
M4x4) temporarily.
*Key point
• Fully tighten the screw after performing "Adjustment of Needle bar height" .
3. Fully tighten the screw (screw, bind M3x6) of W presser adjust plate.
Set Screw, Socket (FT) M4X4
Screw SM2.38
NEEDLE BAR PRESSER SPRING (XC6254)
Screw, Bind M3X6
Washer,thrust
Needle bar presser
spring (XC6254)
Needle bar hook stand assy
Set screw, socket
(FT) M4x4
Needle thread block
W presser adjust plate
No gap
Tip of needle
thread guide spring
Needle bar thread guide Q
Needle thread plate
Needle thread
guide spring
Screw SM2.38
Needle clamp screw
Needle bar
Needle bar supporter assy
Needle block
0.3 -
0.65 mm
Needle bar hook
stand assy
Needle bar
crank rod assy
Set screw, socket
(FT) M4x4
Screw, bind M3x6