Roland GK-3B Owner's Manual page 17

Attaching the GK-3B to the Bass
Mounting on the Back of the Bass
1. Remove three screws from the 3. Tighten holders "A" and "B" using the
underside of the controller, then attach screw (5 x 20 mm).
the GK-3B to holder "A." |
5x20mm
+ Holder B
HolderA -
* Holder A has six screw holes. Refer to the figure to
ensure the holder is attached correctly.
2. Attach holder "B" so that the bass
body is sandwiched between the two
holders.
*
Make sure that Holder A is firmly pressed against
the side surface of the bass body.
ie
~ Holder B
17