Specifications

12. Check the reading of the display to be between 311 and 313 degrees.
13. If the movable knife does not contact the fixture between 311 and 313, or
contacts too soon, the select position adjustment may be required.
Select Position Adjustment
Note: This procedure requires 0 to 250 in/lbs torque wrench when making
adjustments to the "select" position.
Note: After performing any adjustments to the pulley location in the following
steps, you MUST check and most likely need to adjust rotary hook timing.
Refer to the hook timing information in this manual.
1. Position the trimmer system to 312 degrees using the previous procedure for
checking select position.
2. Press the key. This will keep the Z shaft from rotating from the 312 position.
Movable Knife
"select" position
(with the rear of
the blade against
the fixture pin
Select Position
Fixture (p/n
995372-01)
fixture installed in
needle plate hole
Needle Plate
(Do not install
the raised
needle plate)
this pin fits into
the top of the
needle plate hole.
Figure 4 - 20
Select Position Adjustment 4 - 25
110279-01, Rev B 4. Trimmer Maintenance