2. MECHANICAL DESCRIPTIONS
LZ2-B850,B851
2-01
Operate in the order of the numbers in the illustration.
The
●
,
■
and other symbols with the numbers indicate different sequences of operation which can occur at the same
time.
2. MECHANICAL DESCRIPTIONS
2-1. Needle bar and thread take-up mechanism
2-2. Lower shaft and rotary hook mechanism
1089S
●
5. Rotary thread take-up lever
4. Thread take-up lever shaft
3. Thread take-up crank
2. Upper shaft
■
7. Needle bar
■
6. Needle bar clamp
■
5. Needle bar connecting rod
1. Pulley
2. Upper shaft
3. Timing pulley U
6. Lower shaft
7. Lower shaft gear
13. Rotary hook
10. Bevel gear
12. Rotary hook shaft
11. Bevel gear
9. Driving shaft
8. Driving gear
5. Timing pulley D
4. Timing belt
1. Pulley
1090S
