Kuzma 4Point 2008-6 - Manual (Page 9)

Fig. 9a Bias distance “X”
For maximum tracking, it is advisable to set the bias by use of an appropriate test record, ie. those with
tracking bands. Please do not use test records with blank space where the tip of the needle sits on the
surface rather than in the groove. (Fig.9&9a)
See appendix 3.
9. Damping
This tone arm has two independent damping systems. The lower trough is for horizontal damping and
the second trough on the arm tube assembly is for vertical damping. (Fig.1)
Both troughs are removable.
The horizontal holder with paddle is permanently fixed on the horizontal bearing assembly.
Vertical& horizontal damping:
The vertical paddle is inserted after the tube assembly. Fix holder in the hole with 1.5 mm Allen key.
(Fig 10)
The paddles long screws (1.5 mm Allen key) are fixed with fingers by a small black plastic nut. Start
with both at zero damping. The more the paddle is inserted into the liquid, the stronger the damping.
First start with horizontal, then add vertical, but feel free to experiment.
Be sure that you do not adjust the paddle in the trough so that it touches the bottom.
Fig.10 Fixing vertical damping holder
Paddles are fixed by holding a screw with Allen key 1.5mm and ACW rotation with fingers of the
small black nut.
Adding damping oil:
First insert silicone damping oil into the troughs. Let the liquid settle, before adding more. Stop
filling, when you reach the silver lines about 3mm below the edge of the troughs.
Removing trough:
Removing trough using Allen keys 1.5 mm (vertical- fig .11) and 2.5 mm (horizontal- fig.12&1).
Release fixing screw and pull away trough. But firstly put paddles in the vertical position out of the
oil so that oil will drip off.
X