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Mechanical Descriptions; Upper Shaft And Needle Bar Mechanism; Lower Shaft And Rotary Hook Mechanism - Brother S-710A Service Manual

Brother single needle direct drive straight lock stitcher with thread trimmer
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4. MECHANICAL DESCRIPTIONS

4. MECHANICAL DESCRIPTIONS
The mechanisms operate in the order of the numbers given in the illustrations.

4-1. Upper shaft and needle bar mechanism

(1)
6
Needle bar
clamp
(2)
The needle bar is guided by the needle bar bush U (1) and needle bar bush D (2).

4-2. Lower shaft and rotary hook mechanism

8
Lower shaft gear
7
Lower shaft
5
5
Needle take-up lever
4
Thread take-up crank
7
Slide block
8
Needle bar
10
Rotary hook shaft assy
11
Rotary hook
SL-710A
3
Upper shaft
2
3
Joint
4
Timing pulley U
2
Rotor
9
Gear
Rotor
1
Pulley
1626M
1
Pulley
5
Timing belt
6
Timing pulley D
1627M

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This manual is also suitable for:

Db2-dd7100aDb2-dd7100