11
Pressurizing the pedestal
The OB Quattro may be pressurized from an external pressure source or by using the Vinten port-
able pump (Part No. 3357-3). Trim weights
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, 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.
Pressurization Graph
0
10
20
30
40
50
60
70
80
180
160
140
120
100
80
60
40
20
0
lb
kg
0
2
4
6
8
10
12
14
bar
0
20
40
60
80
100
120
140
160
180
200
psi
16
220
90 100 110
200 220 240
120
260
18
240
260
≤
16.3 bar
(236 psi)
