Taking Out Action And Pedal Check - Yamaha disklavier IV / Pro Series Maintenance Handbook

5. MKIV/Pro installation manual

5 - 6. Taking out action and pedal check

You can take them out under power standby
HINT!
status --> Refer to 5-11
For removing the wood rail which holds hammer shanks
1) Remove fallboard, key blocks and key slip
You do not have to remove media center to remove key block screws.
2) Disconnect both key and hammer sensor connecters
Check HS and KS tags at each cable before you re-connect them.
3) Take out action and remove the wood rail.
Removed cables should be placed outside of the right arm.
Useful information
a) < Hammer Sensor is not recognized !> will appear in
the operation (interface) mode when hammer sensor is
not correctly connected.
b) Keyboard test play will be played back extremely
loud if the key sensor is not correctly connected.
HINT!
Be sure to check the pedal rod position
Check to make sure the upper line G on the rod is the same height
as edge line F for the damper (right) and Shift (left) pedals.
If not :
--> Disklavier pedal rod length adjustment procedure
Loosen lock nut A then rotate adjusting nut B until the upper line G
on the rod is the same height as edge line F. Tighten nut A to lock it.
When pedal adjustment is correct, line E never goes higher than
edge line F when the pedal is fully depressed.
Sostenuto (middle)
No service is necessary at delivery.
MHB23 MKIV/PRO DIOV1.05, SCV.1.01 PAGE.10