Singer 246K42 User Manual

TO ADJUST THE TRIMMER (CONTINUED)
(See Fig. 44)
Before setting stationary knife L4 for width of
bight, loosen screw Q4, Fig. 44 and slide movable
knife 04 up in its holder out of possible contact
with
stationary knife. Tighten screw Q4.
SETTING STATIONARY KNIFE FOR WIDTH
OF BIGHT:
To change the width of bight, loosen the screw
T4
and move the stationary knife holder 54 toward
the left or right, as required. Securely tighten the
screw T4.
Return
movable knife 04 to its correct position;
setting
it in relation to the stationary knife as
described next.
SEniNG MOVABLE KNIFE IN RELATION
TO STATIONARY KNIFE POSITION:
Remove the clamp screw Q4, the chip ejector
04, the knife guard C4 and the knife clamp Z3.
Loosen the screw N2 and move the knife holder
assembly P4 toward the right or left as required
to bring the cutting edge of the movable knife 04,
at its lowest position, slightly below the cutting
edge of the stationary knife L4, as shown in Fig.
44. Securely tighten the screw N2. Then replace
the knife clamp Z3, the knife guard C4, the chip
ejector
04, and the clamp screw Q4. Then lightly
press
the movable knife 04 downward against
the stationary knife L4 and tighten the screw Q4.
Loosen the screw T4 sufficiently to release the
spring behind the stationary knife L4 permitting
the stationary knife to make a tight spring con·
tact with the movable knife 04. Then securely
tighten
the screw T4.
When knives require
sharpening they may be
removed as instructed on page 23 and sharpened
as instructed on page 25.
24
E31ZI/
L4 V4
Fig. 44. Trimmer Adjustment
ANGULAR ADJUSTMENT:
To trim efficiently, cutting edge of stationary
knife L4 must contact all points along cutting edge
of movable knife 04.
To adjust, remove two screws Y4, Fig. 44 and
remove throat plate, screw R4 and guide N4.
NOTE: On machines equipped with a needle
guard, this guard must also be removed. When
replacing needle guard, set it so that needle will
just brush guard as needle descends.
Remove front feed dog.
Loosen screws 55, T5, and F5 (see inset at top
left of Fig. 44).
Align lower knife
L4 with upper knife 04 and
securely tighten screw F5.
Ti ghten screws 55 and T5.
From the library of: Superior Sewing Machine & Supply LLC

Singer 246K42 Specifications

General

Stitch Type	Lockstitch
Number of Stitch Patterns	1
Feed Type	Drop Feed
Needle Positions	Center
Operation	Manual
Stitch Options	Straight Stitch
Included Accessories	Needles, bobbins
Type	Industrial Sewing Machine
Application	Heavy Duty, Leather, Canvas