Brother BAS-311E 311EL and 326E, 326EL, Adjusting the tension of X-timing belt A326, Adjustments

Chapter 4. Adjustments

311EL and 326E, 326EL

•311EL

1.5mm •326E, 326EL

w	1mm
	9.8N
t	(1kgf)	e
y

9.8N	•311EL	!1
(1kgf)
	3mm	o

•326E, 326EL
2.5mm	!2

qi

u

r !0

■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

requally 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 !0clockwise to move X-pulley bracket R !1until the appropriate tension is given, and secure X-pulley bracket R !1to the bed using the bolts !2.

BAS-311E.311EL.326E.326EL 65