Singer 2700 Series, Руководство по обслуживанию

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Arm Shaft and Horizontal Bevel Gear
Removal:
Replacement:
1. Remove the free-arm extension table, all the covers, needle bar, face plate lamp
mounting bracket, needle bar vibrating bracket, needle threader (for 2730/2732),
take-up lever assembly, the cam controlled follower, the cam controlled feed
mechanism, the stitch width bracket assembly, the disc follower quick out lever, the
disc follower, the disc stack shaft gear and bracket, and the handwheel.
2. Loose collar set screws (F) just enough to provide means to move the collar (E) along
the arm shaft.
3. Loose set screw (B) in bevel gear (A) making sure it is sufficiently free to clear the
groove on arm shaft.
4. Draw the crank (H) with arm shaft (C) to the left until it clears bevel gear (A).
5. Remove bevel gear (A).
6. Continue to draw arm shaft (C) out of the machine until it clears collar (E) and washer
(D).
7. Remove collar (E) and washer (D).
8. Remove arm shaft (C) washer (G) will remain on the arm shaft.
1. Replace these parts the same way as described above, but in a reverse order. (Refer
to “Bevel Gear Mesh and Arm Shaft end Play” on pages 70-71).
2. In order to maintain feed timing, align the timing mark on vertical shaft bevel gear,
between the two timing marks on horizontal bevel gear. (Refer to “Vertical Shaft
Bevel Gear” on pages 61-62).
3. Adjust bevel gears mesh and arm shaft end play, the disc stack radial play, the play
between disc stack and disc follower and the adjustments you judge necessary when
replacing the take-up lever assembly and the needle bar connecting link. (Refer to
pages 70-71, 74-75 or 78-79 and 27-28).
4. Check and adjust if necessary:
Needle bar height (pages 84-85).
Left-right needle position (pages 92-93).
Zigzag bight stop positioning (pages 98-99).
Presser bar height and alignment (pages 106-107).
Hook timing (pages 110-111).
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Service Manual
42
AGO/03
Rev. n .
o
359109-000 AGO/03