Specifications

Movable Knife

1. Remove the screws holding the needle plate. Remove the needle plate.

2. Remove the screws holding the front and rear bed covers and remove the covers.

3. Lift the forward end of the connecting link from the pin on the movable knife

drive arm (see Figure 3-44).

4. Push the movable knife all the way back until it stops.

5. Loosen the hex socket screw holding the movable knife to the top of the knife

drive arm.

6. Rotate the movable knife out of the spring knife, then remove the hex socket

screw and the movable knife.

7. Place the new movable knife on the top of the knife drive arm, positioning the

alignment hole in the knife over the alignment pin in the arm.

8. Apply Loctite 222 screw adhesive (or equivalent) and install the hex socket screw

and snug it with your fingers.

Connecting

Link

pin on Movable Knife

Drive Arm

hex

socket

screw

Movable

Knife

Spring Knife

and Under

Thread Presser

alignment

pin/hole

button head screw

and spacer between

blade and presser

Figure 3 - 44

Trimmer Assemblies 3 - 51

110305-01, Rev A 3. Mechanical Disassembly