Installing The Upper Thread Presser; Replacing The Plate Presser And Presser Plate; Installing The Valve Unit - Brother RH-981A Instruction Manual

3. INSTALLATION

3-17-2. Installing the upper thread presser

3-17-3. Replacing the plate presser and presser plate

3-17-4. Installing the valve unit

3022Q
1. Install the valve unit (1) with the screw (2).
2. Remove the stopper plug (with the P mark) (4) from the valve unit (3), and then install the joint (5).
3. Connect the 6mm-diameter air tube (7) to joints (5) and (6).
21
3019Q
1. Loosen the screw (1), and then remove the thread
guide (2).
2. Install the upper thread presser support (3) with the
screw (1).
* Adjust the height of the upper thread presser
support (3) so that it presses against the upper
thread presser plate (5) when the upper thread
take-up lever (4) is lowered.
3020Q
Remove the plate presser (1) and presser plate (U) (2),
and replace them with plate presser (I) (3) and presser
plate (I) (4).
3021Q
RH-981A
Installation position
2400Q