Installing The Hand Switch - Brother RH-981A Instruction Manual

3-17-8. Installing the hand switch

Insert the indexer specification harness (1) into the
3003Q
control box connector (2).
* If another specification harness has been inserted
into this connector, first disconnect this harness and
then insert the indexer specification harness (1).
Note: Check that the label number on the indexer
specification harness (1) matches the movable
knife (R) (3), movable knife (L) (4), thread
handler (5), work clamp (R) (6), work clamp (L)
(7) and movable knife driving cam (8) numbers
before inserting the specification harness (1).
(If a connector with an incorrect label number
is connected, it may cause problems such as
damage to the sewing machine or thread
trimming errors.)
Specification
L1
L2
L3
-52 L4
L5
L6
L7
* There is 10 mm of difference in the knife installation
3004Q
positions between L1 - L4 and L5 - L7.
* If using both an upper thread clamping device and a
fly indexer, L5 to L7 cannot be used.
1. Install the hand switch support plate (1) with the two
screws (2) in the position shown in the illustration.
2. Install the hand switch (3) to the hand switch
support plate (1) with the two screws (4).
3027Q
RH-981A
3. INSTALLATION
Right/left work clamp No.
Label No.
Right/left movable knife No.
of harness
Thread handler No.
1
2
3
4
5
6
7
1
2
3
4
5
6
7
24