Specifications

11. After replacing a movable knife refer to the trimmer adjustment procedures later
in this chapter for the adjustable fixed knife.
Adjustable Fixed Knife/Under Thread Presser
1. Remove the screws holding the needle plate. Remove the needle plate.
2. Remove the screws holding the front and rear bed covers. Remove the covers.
3. Lift the forward end of the connecting link from the pin on the movable knife
drive arm (see Figure 4-10).
4. If the movable knife is positioned under the adjustable fixed knife and under
thread presser, rotate it forward to move it from under that area.
5. Remove the socket head cap screw securing the adjustable fixed knife and under
thread presser to the top of the needle plate bracket.
6. Remove the adjustable fixed knife and the under thread presser.
7. Replace the required new parts.
Connecting
Link
pin on Movable
Knife Drive Arm
hex head
screw
Movable
Knife
alignment
pin/hole
socket head cap
screw securing
adjustable fixed
knife and under
thread presser
Adjustable
Fixed Knife
Under Thread
Presser
Figure 4 - 10
Adjustable Fixed Knife/Under Thread Presser 4 - 11
110279-01, Rev B 4. Trimmer Maintenance