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Tightening The V-belt - Brother RH-981A Instruction Manual

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3-8. Tightening the V-belt

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).
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).
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.
Approx.10 mm


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  • md alamin Nov 02, 2018 01:21:
    i want this manual book please give it
  • Gaby Feb 26, 2014 04:50:
    Quisiera el manual dela rh981a brother en español gracias