Vinten Quattro SL Pedestal Manual De Instrucciones página 13

English
Pressurizing the pedestal
The Quattro may be pressurized from an external pressure source or by using the Vinten portable pump
(Part No. 3357-3). Trim weights (2, 19) are provided for fine balance.
Ascertain the payload to be fitted to the pedestal (payload = pan and tilt head, camera, lens and all ancillary
equipment). Referring to the graph (Fig 2), mark the payload on the horizontal 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.
Pressurizing the pedestal from an external pressure source
WARNING!
To pressurize the pedestal from an external pressure source, proceed as follows:
Remove the Schrader valve cap (16) and connect the charging line from the pressure source.
Push down on the weight tray (1) against residual pressure. At the safety catches (3), push the
rocker switches to the unlocked position.
Turn on the pressure supply and slowly increase the pedestal pressure to the required pressure.
Do not exceed the maximum working pressure, indicated by the leading edge of the red sector on
the gauge (7).
Disconnect the charging line, but do not refit the Schrader valve cap at this stage.
Pressurizing the pedestal using the Vinten portable pump
WARNING!
To pressurize the pedestal using the Vinten portable pump, proceed as follows:
Remove the Schrader valve cap (16).
On the pump (Fig 3), fold down both the feet (P.3).
Push in the handle release button (P.5) and move the handle (P.1)to the horizontal position, where
it will lock.
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This pedestal must be pressurized only with clean, dry air or nitrogen. A
pressure reducing valve must be fitted to the pressure line between the
gas cylinder and the outlet connection of the hose. The reducing valve
must be screwed into the gas cylinder outlet. The maximum pressure on
the outlet side of the reducing valve must not exceed 13.1 bar (190 psi). Do
not pressurize 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.
Do not pressurize 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.