Attachment Of Bh Spring; Attachment Of Needle Bar Crank Rod Assy / Thread Take-Up Lever - Brother XM3700 Service Manual

Application of Assembly

1-15 Attachment of BH spring

1. Set the BH spring 1 to the base holder assy 2 with the screw 1.
*Key point
• Check that align the boss 3 of the base holder assy 2 with
the positioning hole of the BH spring 1.
1

1-16 Attachment of Needle bar crank rod assy / Thread take-up lever

1. Set the thread take-up lever 1 to the needle bar crank rod assy 2 with the
screw 1.
*Key point
• The screw 1 is reverse threaded.
2. Set the needle bar crank rod assy 2 to the needle bar block 3.
Apply EPNOC AP (N) 0 to the shaft of the needle
bar crank.
Apply EPNOC AP (N) 0 to the shaft of the thread
take-up lever.
Apply EPNOC AP (N) 0 to the thread take-up
lever attachment face (left screw attachment face)
of the needle bar crank.
1
Upper shaft, Needle bar and Presser foot unit
Screw, Bind
M3X6
Small amount
Small amount
Small amount
Screw, Flat
SM3.57L
3 - 49
XC8387***
XC8387***
1
XC8387***
1 3
2
1
2
1
3
2