Needle Clearance To Shuttle; Zigzag Synchorization - Kenmore 158.17560 User Manual

Needle €learance te Shulde
The Cf¢sran¢_ "'a.'" °'b." "c," _d the angle "d" are yew
critical po_ttlS ,n relatiOn tO fill needle t,mln 9 to shuttJe.
Hoverer. the_l _)omts _rl v,sual(y _terml_d by J$1_ the
Rjdlal Timing G,tugls.
NOTE:
No ad_ustm_t ,s allowed for °'Dmmlnslon _' for the
frcl_t.flcmg _uttle _|1, For adiu_r_nt for s(de_ut_e
n_dels. I_em rtfmr tO Fi_m G.3.
fd"_
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158.17560
158.17570
158.17571
158.17572
158.17740
158.17741
Zigzag Synchronization
Set stitch widt_ control at maximum. Turning _e
handwheel, check and see if the needle side motion
on t.hestandard plane (0.03<J4 inch above _e upper
surface of the needle plate) at both needle positions
come wl_ln _he engineenng lirni_ o! 0.01_1 inch. I!
not, |oosen set screw _2) on the worm gear e_ther
_reetion. Tighten the screw (2) securely alter
adjustment.
i I_," ",'_l|
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I 001311' 0 _O._m,
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FIGURE I.l-!
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