Singer 252 User Manual

26
Stitch width Regulator (252-257)
Removal:
1) Remove D and llfll ,
2) Remove screw A and stitch width regulator lever B.
3) Remove screw C, spr ing washer D and stitch width regulator E.
4) Remove needle bar driving arm tension spring F.
5) Loosen screw G.
6) Remove needle bar driving arm H, putting it forward and to lhe right.
Caution on reassembly:
a) Spring washer D should be assembled with its concave lace down.
b) Spring F should be assembled with its longest tail to the left.
Note: Before doing the adjustments of this assembly group , check the adjustments on sideways
setting of needle bar as given in IIlJ .
Adjustment of bight stops:
Adjustment of Stop N (Straight stitch)
Check:
Set stitch wi dth regulator lever B all the way to the left, as in fig. J.
Turning hadwheel there should be no sideways movement of needle bar vibrating bracket L.
Setting:
1) Loosen screw M.
2) Rotate stop N away from regulator E.
3) Move · regulator lever B 10 middle position.
4) Move regulator lever B slowly back, towards the left wh i le at the same time turning hadwheel,
until needle bar vibrating bracket L does not perform any sideways movement and follower R
does not interfere on any point of pattern cams.
5) Rotate stop N back aga in st stitch width regulator lever B and tighten screw M.
6) Repeat check.
Adjustment of stop T (Max. stitch width):
Check:
1) Set stitch wi dth regulator lever B all the way to the right as in fig. 0 .
2) Turn handwheel until the cam follower R is on bottom or on top crest of zig-zag cam pattern
BS in fig. P.
3) Slowly move zig-zag bi ght amplitude lever B from left to right while moving the needle position
lever V to and fro.
4) When there is no more movement of needle bar, the bight ampl i tude lever B must be against
the stop .
Setting:
1) Loosen screw S and rotate stop T away from stitch width regulator E.
2) Move regulator lever B to middle position .
3) Move regulator lever B slowly back towards the right while at the same time actuating needle
pos iti on lever V right and left, until needle bar vi brating bracket L does not have any sideways
movement.
4) Rotate stop T back against stitch wi dth regulator E and ti ghten screw S.
5) Repeat check .
Adjustment of .stitch width lever to control panel graphics:
Check:
1) Assemble D .
2) Move stitch width lever B all the way to the left as in fig. J .
3) The marking line on the stitch width lever B knob should be under the symbol for straight stitch
on the control panel.
Setting:
1) Remove U .
2) Loosen screw A.
3) Mover lever B to coinc i de with straight stitch symbol, holding the regulator E against the stop N.
4) Tighten screw A.
Sideways adjustment of needle bar:
NOie: Before doing this adjustment, check adjustment of gear mesh as given in m .
Check:
1)
1
Install a straight stitch throat plate and a size 14, No . 2020 (15 x 1) needle .
2) Set stitch width lever 8 all the way to the left (straight stitch) as i ndicated in fig. J.
3) Turn handwheel until the needle penetrates through the needle hole in the throat plate up to
the needle eye. In this posit ion the needle should be centered in the needle hole .
Setting:
1) Loosen screw G and move heedle bar vibrating bracket L until needle is centered in the needle
hole , while holding the needle bar driv ing arm against regulator block K (to keep it from shifting).
2) Ti ghten screw G.
3) Repeat check .
Note: Alter this adjustment, check sideways setting of needle bar as in m .
FORM 723 (1172)

Singer 252 Specifications

General

Brand	Singer
Model	252
Category	Sewing Machine
Language	English