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Pressurizing the pedestal
WARNING! This pedestal must be pressurized only with clean, dry air or
The Osprey Plus is pressurized from an external source.
A correctly pressurized pedestal will balance its payload such that it can be moved to any position
over the full on-shot stroke of the moving column, with minimum effort, and it will maintain its po-
sition when the steering ring is released. Balance is achieved with approximately 1.26 bar pres-
sure for every 10 kg of load (10 psi for every 13 lb).
WARNING! A pressurized pedestal will rise rapidly when safety catch is
To pressurize the pedestal, proceed as follows:
Push down on the steering ring
catch (5). Move the slide to the OFF (O) position.
Remove the Schrader valve cap
source.
Turn on the pressure supply and slowly increase the pedestal pressure. If not already fully
extended, the moving column
sure is reached, indicated by the leading edge of the red sector on the gauge (2).
Disconnect the charging line, but do not refit the Schrader valve cap at this stage.
Install the camera mount and payload and balance the load.
Fitting and balancing the load
After pressurization of the pedestal, the camera mounting and payload can be fitted and balanced.
The Osprey Plus pedestal has the standard four-bolt mounting plate
various Vinten camera mounts including pan and tilt heads, Quickfix and Mitchell adapters. The
mounting bolts are captive in the pedestal and the bolt heads are accessible from the underside
of the mounting plate. When the camera mount has been fitted, the bolts should be tightened se-
curely using a flat- bladed screwdriver or a spanner of the correct size. A Vinten spanner, Part No.
J551-001, is available for this purpose.
nitrogen. A pressure reducing valve must be fitted to the pres-
sure line between the gas cylinder and the outlet connection of
the hose. The reducing valve must be screwed into the gas cyl-
inder outlet. The maximum pressure on the outlet side of the
reducing valve must not exceed 11.3bar (165psi). Do not pressu-
rize the pedestal beyond the maximum safe working pressure
indicated by the leading edge of the red sector on the gauge.
The pedestal is fitted with a pressure relief valve as a safeguard
against over- pressurization.
Do not attempt to adjust the pressure relief valve
released. Do not lean over the pedestal when releasing the
safety catch. Always restrain the pedestal by hand pressure on
the steering ring when the safety catch is released.
(23)
against any residual pressure and release the safety
(22)
and connect the charging line from the pressure
(4)
will rise. Shut off the supply when maximum working pres-
(1)
which permits the use of
10
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