3
2. Place a large Teflon bearing ring on the dovetail holder as
shown in Figure 4.
3. Position the dovetail holder on the arm as shown in Figure
5. The Teflon bearing surface seats between the dovetail
holder and the arm.
4. Place a small Teflon ring onto one of the knob shafts. Then,
place four of the disc springs onto the knob shaft. The disc
springs should be stacked with their curved surfaces fac-
ing away from each other. Place another small Teflon ring
on top of the disc springs. The knob should now appear as
shown in Figure 6.
5. Push the knob shaft through the hole in the arm and thread
it into the hole in the dovetail holder (Figure 7). Thread the
knob unit just tight.
Figure 4.
Place one of the large Teflon bearing rings on the
dovetail holder.
Large Teflon
bearing ring
Dovetail holder
Figure 5.
The dovetail holder seats into the arm with the Teflon
bearing in between.
Large Teflon bearing ring
Dovetail holder
Arm
Figure 6.
Two small Teflon rings and four disc springs go on
each knob shaft. The disc springs should be oriented so their
curved surfaces face away from each other.
Disc springs
(4), stacked
with curved
surfaces facing
away from
each other
Knob
Small Teflon rings (2)
Figure 7.
The knob goes through the arm and into the dovetail
holder. The Teflon bearing seats between the arm and dovetail
holder.
Knob
Teflon bearing (not visible)
Arm
Dovetail
holder
Figure 3.
Connect the
arm to the upper base
with the two socket head
cap screws. The groove
in the upper base should
align with the slot in the
arm.
Upper base
Groove
Slot
Arm
