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Fitting the pan and tilt head and camera
The Quattro pedestal has the standard four-bolt mounting plate
ious Vinten camera mounts including pan and tilt heads, Quickfix and Mitchell adapters. To fit a
pan and tilt head or an adaptor it is necessary to extend the moving column.
WARNING! A pressurized pedestal will rise rapidly when the safety catches
Fit the pan and tilt head or adaptor as follows:
Ensure pedestal pressure does not exceed 3.5 bar (50 psi). Reduce as necessary, using
the Schrader valve cap (16).
WARNING! A pressure retaining valve prevents pedestal pressure being
Push down on the weight tray
the rocker switches to the unlocked position. Allow the column to extend under hand re-
straint.
Apply the on-shot clamp (10).
Fit the pan and tilt head or adaptor and secure with the appropriate bolts.
Release the on-shot clamp
down on the weight tray
tion.
With the pedestal locked in the fully depressed position, fit the camera and accessories to
the pan and tilt head, ensuring that all items such as pan bars, prompters, lenses etc, are
fitted. Attaching these items at a later stage may upset the pedestal balance.
Install one main
Pressurizing the pedestal
The Quattro-OBL may be pressurized from an external pressure source or by using the Vinten
portable pump (Part No. 3357-3). Trim weights (1),
Ascertain the payload to be fitted to the pedestal (payload = pan and tilt head, camera, lens and
all ancillary equipment). Referring to the
axis then strike a vertical line from the load figure to the balance line. At the intersecting point strike
a horizontal line to the vertical axis and read off the required pressure.
The pedestal should be pressurized with the column unlocked and free to extend.
are released. Do not lean over the pedestal when releasing the
safety catches. Always restrain the column by hand pressure
on the weight tray when the safety catches are released
reduced below approximately 3.5 bar (50 psi), indicated by the
yellow segment on the pressure gauge (15).
In the event that pressure has fallen below this, pressurize the
pedestal to approximately 3.5 bar (50 psi) before attempting to
extend the column.
(2)
against residual pressure. At the safety catches (4), push
(10)
and lower the moving column under hand restraint. Push
(2)
and push the safety catch rocker switches to the locked posi-
(20)
and two auxiliary trim weights
Pressurization
(21)
which permits the use of var-
(1)
on the weight tray (2).
(20)
are provided for fine balance.
graph, mark the payload on the horizontal
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