34
BAS-311E.311EL.326E.326EL
Chapter 3. Assembly
Feed mechanism (X axis) 311EL and 326E
4. Position X-timing pulley B326 !6, which is attached to X-pulley bracket L !1 via the X-timing pulley shaft !3, so that there
is a 2 mm clearance between the top of X-timing pulley B326 !6 and end A of X-pulley base L !1. Position timing pulley
A !5 so that there is a 2.5 mm clearance between the bottom of timing pulley A !5 and end B of X-pulley base L !1. Then
secure X-timing pulley B326 !6 and timing pulley A !5 to the X-timing pulley shaft !3 using the set screws !8 and !9.
5. Position timing pulley B o attached to X-pulley bracket R y so that clearances C and D are equal, then secure it to X-
pulley shaft R u using the set screw @0.
6. Loop X-timing belt A326 !2 around X-timing pulley A311 (A326) @2 of X-pulse motor @1 and X-timing pulley B326 !6.
Temporarily attach X-pulley bracket L !1 to the bed using the bolt @3 and washer @4.
7. Loop X-timing belt B326 w around timing pulley A !5 of X-pulley base L !1 and timing pulley B o of X-pulley base R y.
Temporarily attach X-pulley bracket R y to the bed using the bolt @5 and washer @6.
8. Insert the bolt @7 that is used to adjust the tension of X-timing belt A326 !2 from the left side of the bed, into X-pulley
bracket L !1.
9. Insert the bolt @8 that is used to adjust the tension of X-pulley belt B326 w from the right side of the bed, into X-pulley
bracket R y.
2mm
2.5mm
!6
!5
!9
@0
@5
@8
@3
!8
w
u
y
o
!1
!2
!3
@7
@4
@7
@6
@1
@2
