Vinten OB Quattro, Operator'S Manual

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12
Pressurizing from an external pressure source
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 (2) against residual pressure. At the safety catches (4) , push
the rocker switches to the unlocked position.
Turn on the pressure supply and slowly increase the pedestal pressure to the required pres-
sure. Do not exceed the maximum working pressure, indicated by the leading edge of the
red sector on the gauge
(14) .
Disconnect the charging line, but do not refit the Schrader valve cap at this stage.
Pressurizing the pedestal using the Vinten portable pump
To pressurize the pedestal using the Vinten portable pump, proceed as follows:
Remove the Schrader valve cap (16) .
On the pump, fold down both the feet (P.3) .
Push in the handle release button (P.5) and move the handle (P.1) to the horizontal posi-
tion, where it will lock.
Pull the hose (P.4) out of its stowage (P.2) . Connect the hose to the pedestal charging valve
(16) .
On the pedestal, push down on the weight tray (2) against residual pressure. At the safety
catches (4) , push the rocker switches to the unlocked position.
Position the pump between the legs, standing with both feet on the fold-down feet (P.3) .
Grip the handle (P.1) with both hands and, using full steady strokes, pressurize the pedestal
to the required pressure. Do not exceed the maximum working pressure, indicated by the
WARNING! This pedestal must be pressurized only with clean, dry air or
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 16.3 bar (236 psi). Do not pres-
surize 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! Do not pressurize the pedestal beyond the maximum safe work-
ing 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.