Yamaha Disklavier E3 Series Maintenance Handbook page 25

Step 3. The screws on each shank stopper
section give the fine hammer stop
positioning and eliminate uneven-
ness in the same section.
Step 4. Normally the shank stopper position is set correctly in the factory.
The height adjustment and lateral adjustment can be done as following drawings.
 OK Step 2.
Step 5. Motor drive (MD) unit for the quiet function is located on the right action bracket.
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