Brother BAS-311E service manual Presser foot mechanism, Mechanical description, r t e q w y u

Chapter 1. Mechanical description

4. Presser foot mechanism (1)

r

t

e

q

w

y

u

1.When the upper shaft q rotates, the stepping work clamp cam w moves eccentrically, and the stepping work clamp connecting rod e oscillates stepping work clamp arm R r.

2.The oscillation of stepping work clamp arm R r is transmitted to stepping work clamp arm F t, and the stepping link assy y moves the presser bar lifter u up and down.

6 BAS-311E.311EL.326E.326EL