Brother rh-918a manual Tightening the V-belt, 2990Q, 2991Q

3. INSTALLATION

3-8. Tightening the V-belt

Approx.10 mm

2990Q 2991Q

1.Open the rear cover.

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

3.Place the V-belt (1) onto the motor pulley (2).

4.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 10 N.

If the tightness needs adjusting, loosen the two nuts (3) and move the motor up or down. After adjusting, tighten the nuts (3).

Note: Check that the motor rear cover support (4) does not touch the motor pulley (1) or the edge of the motor.

5.Install the motor cover (5) with the three screws (6).

Note: 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 4. above.

11

RH-981A