7
Replacing the Head
When the Head Should Be
Replaced
The head is an expendable item that eventually will wear out
and need to be replaced. Replace the head when the following
occurs:
• The head surface is torn
• Striking points are no longer detected correctly, even
when the head tension is properly adjusted.
• Slack portions remain in the head even after the head
tension is properly adjusted.
Replacement heads (optional)
MH-8 Mesh Head: for either KD-80, PD-80R or PD-80
Replacing the Head
1.
Remove all tuning bolts and washers.
When replacing the head of the KD-80 or the PD-80R,
press the lock bushing (in figure below) in place with
your finger as you remove each tuning bolt, to prevent
the bushings from being pulled off the frame.
Only the KD-80 and the PD-80R are provided with lock
bushings.
For more on the lock bushings, refer to the following
section, “About the Lock Bushings.”
2.
Remove the hoop.
3.
Remove the old head.
4.
Place the new head on the frame.
5.
Place the hoop onto the head.
6.
Pass the tuning bolts through the washers, then
attach them to the hoop and frame.
7.
Next, adjust the tension of the head. Refer to
“Adjusting the Head Tension” (p. 6).
Do not firmly tighten a single tuning bolt by itself. Doing so
will make it impossible to tension the head evenly, and will
cause malfunctions such as failure to accurately detect the
striking location.
About the Lock Bushings
The KD-80 and the PD-80R are provided with lock bushings to
prevent rotation and loosening of the tuning bolts caused by
vibration transmitted from the hoop.
If a lock bushing happens to become separated from the frame
while the head is being replaced, position the bushing so its
four slots are aligned with the corresponding ridges in the
frame, then press down firmly on the bushing.
Tuning Key
Hoop
Lock Bushing
Washer
Frame
Tuning Bolt
Lock Bushing
Frame
About the Mesh Head
