Brother DH4-B980 instruction manual Installing the spool stand, Tightening the V-belt

3. INSTALLATION

3-5. Installing the spool stand

(1)

(2)

0815Q

1.To assemble the spool stand (1), follow the instructions in the manual that came with the spool stand (1).

2.Secure the spool stand (1) to the rear right corner of the work table with the washer and nut (2).

3-6. Tightening the V-belt

(1)	(9)	1198Q
		(10)

(6)

	Approx.	(8)	(2)	(3)	(7)
0.1N
	10 mm				(1)

(1)
(5)	(4)
	(9)

Motor pulley

(7)

1100Q 1101Q

1.Open the rear cover.

2.Pass the V-belt (1) through the base of the bed stand and through the hole in the work table.

3.Loosen the two screws (2) and then remove the motor pulley cover (3).

4.Place the V-belt (1) onto the motor pulley (4).

5.Check that there is approximately 10 mm of deflection in the V-belt (1) when it is pushed in the middle with a load of 0.1 N. If the tightness needs adjusting, loosen the two nuts (5) and move the motor up or down.

6.Install the belt casting prevention bracket (8) to the pulley cover (3) with the wing bolt (6) and washer (7). Align the center of the washer (7) with the gradation (7) 0 shown on the outside of the pulley at this time.

7.Provisionally tighten the winding prevention bar (9) to the pulley cover (3) with the wing bolt (10).

8.Install the pulley cover (3) and tighten it with the two screws (2).

Note: Check that the V-belt is not touching the belt casting prevention bracket (8).

9.Align the winding prevention bar (9) with the point in between the V-belt and the motor pulley, and then secure it by

tightening the wing bolt (10).

Note:Check that the winding prevention bar (9) does not touching the V-belt or the motor pulley.

After a long period of use, the V-belt will become run in and will loosen around the motor pulley. When this happens, turn off the power and adjust by the procedure given in step 5. above.

6

RH-9800