Brother International HE-800B Instruction Manual - English - Page 74

Adjusting the needle and hook timing, application for the sewing machine being adjusted.

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9. STANDARD ADJUSTMENTS 9-2. Adjusting the needle and hook timing 4879M 1. Press the THREAD key to switch to threading mode. 2. Press the key. 3. Gently tilt back the machine head. 4. Loosen the knob screw (1), and then fully open the slide cover (2). 4880M Mark 4882M 65 5. Loosen the two screws (4) of the rotary hook joint (3). 6. Turn the pulley (5) in the regular direction of rotation (A: toward the front) so that the needle bar (6) just begins to rise from its lowest position. 4881M 7. Insert the "2" part of the gauge (7) between the needle plate (8) and the lower edge of the needle bar (6), and then align the rotary hook tip (9) with the center of the needle when the needle bar (6) contacts the gauge (7). * Different gauges (optional part) are used for each of the two specifications -2 and -3, so make sure that the gauge being used matches the specifications and application for the sewing machine being adjusted. 8. Tighten the two set screws (4) of the rotary hook joint (3). 9. Close the slide cover (2), and then tighten the screw (1) to secure it. CAUTION Close the slide cover (2) and secure it. The inner pulley (5) rotates during sewing, so do not touch it, otherwise injury may occur. 10. Gently return the machine head to its original position. 11. Press the THREAD key. Lowest position 4883M HE-800B

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HE-800B
9. STANDARD ADJUSTMENTS
65
9-2. Adjusting the needle and hook timing
1. Press the THREAD key to switch to threading mode.
2. Press the
key.
3. Gently tilt back the machine head.
4. Loosen the knob screw (1), and then fully open the
slide cover (2).
5. Loosen the two screws (4) of the rotary hook joint (3).
6. Turn the pulley (5) in the regular direction of rotation
(A: toward the front) so that the needle bar (6) just
begins to rise from its lowest position.
7. Insert the “2” part of the gauge (7) between the needle
plate (8) and the lower edge of the needle bar (6), and
then align the rotary hook tip (9) with the center of the
needle when the needle bar (6) contacts the gauge (7).
* Different gauges (optional part) are used for each of
the two specifications -2 and -3, so make sure that the
gauge being used matches the specifications and
application for the sewing machine being adjusted.
8. Tighten the two set screws (4) of the rotary hook joint
(3).
9. Close the slide cover (2), and then tighten the screw
(1) to secure it.
CAUTION
Close the slide cover (2) and secure it. The
inner pulley (5) rotates during sewing, so do
not touch it, otherwise injury may occur.
10. Gently return the machine head to its original position.
11. Press the THREAD key.
Lowest
position
Mark
4880M
4883M
4882M
4881M
4879M