Hand Wheel Assy - Brother SB3734T Service Manual

Disassembly
1

Hand wheel assy

1. Remove the screw (screw, bind M3x6) to remove the washer plain L4.
2. Remove the four screws (screw, bind M4x6) to remove the two bushing stoppers.
3. Remove the hand wheel assy from the mounting positions, and pull out it from the needle bar rod.
*Assembling note
• Check that the looper driving shaft assy and the driving shaft assy is not a wobble, and it moves smoothly.
Screw, Bind M3X6
Screw, Bind M4X6
Hand wheel assy
Screw, bind M4x6
Driving mechanism
Looper driving shaft assy
Driving shaft assy
Mounting
position
Bushing stopper
Fig. 2-1
2 - 44
Needle bar rod
Screw, bind M3x6
Washer plain L4
Mounting position