Mechanical Adjustment; Feed Dog Height - Janome MC8900 QCP Service Manual

Feed dog height

When the foot pressure dial is at "7" and the presser foot A is lowered, the highest position of the feed dog should be 0.80
to 0.90 mm from the surface of the needle plate.
Setscrew A
Adjusting screw B
Setscrew D
Setscrew A
Nut
Presser foot
Feed dog

Mechanical adjustment

Threaded hole C
Adjusting screw B
0.80 – 0.90 mm
Surface of
needle plate
Hexagonal socket screw I
Threaded hole C
Setscrew D
Adjustment 1:
1. Turn the power switch on. Adjust the stitch length at
maximum length.
Turn the power switch off.
2. Remove the bed cover and base cover.
3. Set the pressure adjusting dial at "7" with the presser
foot lowered.
4. Turn the handwheel toward you to raise the feed dog
at its highest position.
5. Loosen the setscrew A.
6. Loosen the nut.
Adjust the feed dog height to 0.85 mm by turning the
adjusting screw B.
7. Tighten the nut and setscrew A.
8. Attach the bed cover.
Adjustment 2:
If the feed dog is not parallel to the surface of the needle
plate at its highest position, make the adjustment as
follows:
* For this adjustment, a hexagonal socket screw 4x6 I,
part no. 000111108 is required.
1. Insert a hexagonal socket screw I, part no. 000111108
into the threaded hole (C) until it stops.
2. Turn the setscrew D clockwise to loosen it.
3. Turn the hexagonal socket screw I until the feed dog
is parallel with the surface of the needle plate.
4. Tighten the setscrew D.
5. Remove the hexagonal socket screw I.
6. Attach the bed cover and base cover.
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