To Replace The Lower Knife:
1.
CAUTION! Make sure the Power Switch (18F) is in its “OFF” position and the
Power Wire (29F) is unplugged from its electrical outlet before performing
this procedure. (See Figure D and Figure I.)
2.
Turn the Hand Wheel (9F) until the Upper Knife (2D) is fully raised. Loosen the
Screw (1D) slightly. (See Figure D and Figure M.)
3.
Open the Looper Cover. (See Figure D.)
4.
To Remove The Upper Knife (2D):
a. Press the Upper Knife Bracket Rotating Shaft (5D) toward the right until it will
go no further. (See Figure M.)
b. Turn the Setting Ring (14D) in the direction of the arrow slightly. Stop press-
ing the Shaft and continue turning the Ring until the slot in the edge is ex-
posed. (See Figure M.) Insert the wide end of the Key (3g) into the slot.
c. Remove the Screw (1D) and old Upper Knife (2D). Install the new or resharp-
ened Knife with the Screw (1D) near the middle of the slot in the Knife.
Tighten the Screw enough to hold the Knife while allowing it to slide.
(See Figure M.)
d. Turn the Setting Ring (14D) in the direction opposite the one shown in Figure
M. When the blade is lined up properly it should snap back to the left with
gentle pressure.
5.
If the Knife is adjusted properly, when the Upper Knife is completely lowered the
edge of the Upper Knife (2D) should just barely overlap the entire edge of the
Lower Knife (28D). If necessary, carefully slide the Upper Knife until it is in the
correct position.
6.
Retighten the Screw (1D) to fix the Upper Knife in place. (See Figure M.)
UPPER KNIFE
(2D)
SCREW
(1D)
UPPER KNIFE BRACKET
(3D)
FIGURE M
UPPER KNIFE BRACKET
ROTATING SHAFT
(5D)
SETTING RING
(14D)
UPPER
KNIFE
BRACKET
(3D)
SKU 91500
PAGE 15
SLOT
