QRS Music Technologies PMII, Installation Manual, Page: 14 / 52

Installa on Procedure
14
July 2013
...Modifying the Keyframe ‐ Grand...
The key frame must now be cut. Remove all keys. With a jig saw, follow the pencil line and cut away the frame in each
sec on between the breaks.
With the palm sander, clean up all the rough edges.
The ac on is now ready to be used to locate the posi ons of the slots through the piano's keybed.
Place the keyframe into the grand piano case and secure it with the right and le cheek blocks. With a short, sharp
pencil, reach into the keyboard compartment and mark the notched rear most limits of the keyframe, including the
right and le extremes of each notch. These lines will be used to iden fy the exact loca ons of the keybed slots on the
underside of the keybed, so be certain to make well ‐ de fi ned pencil lines.
Remove the keyframe and reglue the keytail felt fl ush with the back of the keyframe. Measuring the key dip before
and a er reposi oning the felt is recommended. If it is the same, less regula on will be required. If it has changed,
simply shim the back edge with a thin piece of cardboard to maintain the original key dip.
Newer kits include key solenoid plungers with felt ps. Therefore we no longer provide the felt strip below.
Note: This is a good me to install the op onal 88 note record strip (70014). See the PNOScan record strip installa on
manual.
Place all of the keys back on the key frame.
Re ‐ install the hammer ac on on the key frame, using the same 8 ‐ 10 screws you removed earlier.
Re ‐ install the Key Stop Rail.
At this point, the grand ac on modi fi ca ons are complete.
For best player performance it is important that the ac on be regulated properly.