Brother BAS-311E Owner's Manual

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BAS-311E.311EL.326E.326EL
Chapter 1. Mechanical description
Feed mechanism (Y axis) 311E and 311EL
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. 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
q
e
y
t
r
!0
!2
o
!1
!3
i
u
e
!5
w
q
e
y
t
r
!0
o
i
u
!1
!4