17
Pressurizing from an external pressure source
!
WARNING!
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 ≤
15 bar (218 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
.
!
WARNING!
A pressurized pedestal will rise rapidly when safety catch is released.
Do not
release safety catch when pedestal is
pressurized and balancing load is not installed. Always restrain the pedestal by hand pressure on the steering ring when the safety catch
is released.
To pressurize the pedestal from an external pressure source, proceed as follows:
Attach the intended payload,
ensuring that all items such as pan bars, prompters,
lenses etc., are fitted.
1.
Set the safety catch slide (6) to LOCK position (I) and fully depress the moving
column (5) until the safety catch engages.
2.
Turn the Steering ring (22) so the pressure gauge (2) can be seen through the
weight tray.
3.
Remove the Schrader valve cap (24) and connect the charging line from the
pressure source.
4.
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 (2).
5.
Disconnect the charging line, but do not refit the Schrader valve cap at this stage.
Installation
