Brother BAS-311E Owner's Manual

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

■ Adjusting the tension of X-timing belt A326

X-timing belt A326 

e is looped around X-timing pulley A311 (A326) q and X-timing pulley B326 w.

The tension of X-timing belt A326 

e should have 1 mm deflection when it is pressed in the middle of X-timing pulley

A311 (A326) 

q and X-timing pulley B326 w with a load of 4.9N (0.5 kgf) in the direction of the arrow.

Turn the bolts 

r clockwise to move X-pulley bracket L t until the appropriate tension is given, and secure X-pulley

bracket L 

t to the bed using the screws y.

Note: The bolts 

r for adjusting the timing belt tension are in front of and behind X-pulley bracket L t.  Adjust the bolts

r equally so that X-pulley bracket L t does not lean to one side.

■ Adjusting the tension of X-timing belt B326

X-timing belt B326 

o is looped around timing pulley A u and timing pulley B i.

The tension of X-timing belt B326 

o should have 3 mm deflection when it is pressed in the middle of timing pulley A u

and timing pulley B 

i with a load of 9.8N (1 kgf) in the direction of the arrow.  (326EL: 2.5 mm deflection with a load of

9.8N (1 kgf)
Turn the bolts 

!0 clockwise to move X-pulley bracket R !1 until the appropriate tension is given, and secure X-pulley

bracket R 

!1 to the bed using the bolts !2.

w

t

y

r

u

q

e

9.8N
(1kgf)

•311EL
 1.5mm
•326E, 326EL
 1mm

9.8N
(1kgf)

•311EL
  3mm
•326E, 326EL
  2.5mm

o

i

!0

!2

!1