Lewis 150-2 - Timing Instructions

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Check the above setting by depressing the feed plates as
far as possible~ and turn over handwheel to see that crank
No. 48-127 turns without interfering with adjacent parts.
Crank No. 48-150is for adjusting thepositionof the knee
lifter in best position for operator.
Collar No. 39-105 is used fortaking upend thrustof shaft
No. 14-395 and setting tension of spring No. 21-344 for re-
turning ridge forming disc and feed plates to sewing position.
Collar No. 1284 L is used for taking up end thrust of
shaft No. 14-429.
Collar No. 39-117 is used to take up end thrust of knee
press shaft No. 14-400 and for setting tension of spring No.
21-344 for holding knee lifter out of contact with depressing
lever.
TIMING THE MACIITNE
Needle:
A No. 4 taper point needle should be used when adjusting
the needle position.
To secure the correct adjustment for the needle swing
the following steps must be taken and settings made. (See
adjusting chart~ Plate 1).
Adjustment 2
To set the point of the needle in the correct position when
the needle is at the extreme end of its stroke toward the hand-
wheel~ the following steps must be taken: Turn the machine
over until screwdriver slot in needle eccentric ball stud is
straight up and down with the two dots at bottom (See Fig. 1).
With the machine in the above position~ loosen needle carrier
clamp screw and move needle carrier so that the point of
needle is 1/16 to 3/32 inch from the edge of needle setting
surface (Fig. 3). Tighten the needle carrier clamp screw.
Adjustment 3
To set the needle in correct position in needle slot (See
Fig. 7) the following steps and setting must be made: Loosen
the needle carrier clamp screw and move the needle carrier
(See Fig. 2) in or out so that the rear side of the needle will
just clear the needle slot at "A'' (See Fi~. 7) and clear the
needle shoulder of the presser foot at "B' about . 005 inch.
Check to see that the setting for the needle point still is
From the library of: Superior Sewing Machine & Supply LLC