Feed Mechanism (X Axis) - Brother BAS-311E Service Manual

Feed mechanism (Y axis) 311E and 311EL
e
r
t
1. The driving gear w attached to the Y-pulse motor q oscillates the idle gear e.
2. When the idle gear e oscillates, the Y-timing belt y moves forward and backward through timing pulley (A)t attached
to Y-pulley shaft (A)r.
3. The belt holder u and the Y-driving shaft holder i which are fixed to the Y-timing belt y operate the Y-driving shaft o.
4. The X-feed shaft support ! 0 and the X-feed shaft ! 1 are attached to the Y-driving shaft o. The presser arm assembly ! 2
is attached to the Y-feed bracket !3 .
5. The Y-feed bracket !3 operates in the Y-direction (moves longitudinally) via the Cross roller !4 and the Y-feed guide !5 .
Feed mechanism (Y axis) 326E, 326EL
!1
1. When the Y-pulse motor q operates, its motion is transmitted to the driving gear r attached to the Y-driving gear shaft
e via the coupling w.
2. The driving gear r is engaged with the rack of the Y-driving shaft t, and the Y-driving shaft t moves back and forth.
3. The work clamp arm assy i is attached to the Y-feed bracket o via X-feed shaft support 326 y attached to the Y-
driving shaft t and the X-feed shaft u.
4. The Y-feed bracket o operates in the Y-direction (back and forth) via cross roller 326 !0 and Y-feed guide 326Y !1 .
w
!2
!5
!4
q
i
!0
BAS-311E.311EL.326E.326EL
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q
!3
w
y
u
o
Chapter 1. Mechanical description
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!0
!1
r
e
t
y
u
i
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