Pages
HOW TO REMOVE THE STITCH LENGTH REGULATING KNOB
AND THE REGULATING SHAFT (Fig. 75) . . . 76
HOW TO REASSEMBLE THE STITCH LENGTH REGULATING
KNOB AND THE REGULATING SHAFT .
.
.
76
HOW TO REASSEMBLE THE FEED ECCENTRIC ROD N"
D 85506 AND THE CONNECTING RODS OF THE STITCH
LENGTH REGULATING MECHANISM
((Fig. 74 and 75) 79
- General Rules with Reference to important Adjustments
of Stitch Length Regulating Knob and Regulating Shaft 80
- Adjustment of the Friction of the Stitch Length Re-
gulating Knob . . . . . . . . 81
3
- Zero Position of the Stitch Length Regulating Knob 82
ADJUSTMENT OF THE FEED DOG DISENGAGING ME
CHANISM (See figs. 79 and 80)
83
ADJUSTMENT OF THE ECCENTRIC N° 85663 ON THE NEEDLE
POSITIONING LEVER N° C 85662 (Fig. 81) . . 86
ADJUSTMENT OF THE AXIAL PLAY (END PLAY) OF
THE UPPER SHAFT
87
ADJUSTMENT OF THE CONTACT FINGERS N° A 26/1/23
AND N° A 26/1/13 WHICH REGULATE THE POSITION
OF THE NEEDLE AND THAT OF THE ZIG-ZAG WIDTH
REGULATING LEVER 89
ADJUSTMENT OF THE FEED REGULATING ROD
(WHICH REGULATES THE "AUTOMATIC" LENGTH
OF THE STITCH N" A 26/3/21 92
L
Some Troubles and their Remedies..... 95
ADJUSTMENT OF THE NUMBER OF IMPULSES FOR
EACH TURN OF THE CAM AXLE
96
How to count the Number of Impulses of the Cam
Axle 98
4
Copyright -2004
Summary of Contents for Supernova
Page 1: ...Instructions For Servicing The Necchi Supernova Sewing Machine 1 Copyright 2004...
Page 15: ...15 Copyright 2004...
Page 17: ...Fig 11 Fig 12 Fig 13 17 Copyright 2004...
Page 23: ...False needle Fig 18 False needle Fig 19 23 Copyright 2004...
Page 43: ...Fig 38 43 Copyright 2004...
Page 49: ...49 Copyright 2004...
