15
Using the pedestal
Height adjustment
The column
has an on-shot stroke of 100 cm (39.4 in.) and the load can be moved over this
distance, in perfect balance, by raising and lowering the steering ring
. The movement is ad-
justable for drag
and an on-shot clamp
can be used to hold the moving column in position
if fixed height operation is required.
Drag control
Column movement is adjustable for drag and this is set according to operator preference by
means of the drag control
located at the base of the moving column. Turn the control clock-
wise to increase the drag setting, and counter- clockwise to decease it.
On-shot clamp
An on-shot clamp
, located at the base of the moving column, can be used to hold the column
in position if fixed height operation is required. Move the clamp lever fully to the left to apply the
clamp. Move it fully to the right to release the clamp.
Steering
Directional control of the pedestal is achieved by turning the steering ring
mounted at the top
of the column. The steering system is geared so that the wheels turn by the same amount as the
steering ring. This ensures, for example, that with the pedestal set to crab, turning the steering
ring by 90° will also cause the pedestal to change direction by 90°. The steering ring is fitted with
indicators
which, when aligned with the crab/steer pedal
, indicates the straight-ahead po-
sition and thus provides a reference point when steering.
The pedestal has a crab/steer arrangement with a foot-operated changeover mechanism, which
provides a steer setting - one wheel steering, two fixed; or a crab setting - all three wheels turning
together. Pushing the pedal
operates the changeover mechanism which toggles the pedestal
between crab and steer.
In position 1 - with the white pedal area hidden - the pedestal is in steer. In position 3 - with the
white pedal area visible - crab is selected.
Although the button can be pressed with the wheels in any position, the changeover will not occur
until the wheels are all facing forward, so the steering ring may have to be turned by up to 180°
before the changeover mechanism engages. This arrangement ensures that the fixed wheels will
always lock in the straight-ahead position when changing from crab to steer.
The standard steering ring has a diameter of 58,9 cm (23.2 in.). A larger steering ring, with a di-
ameter of 74 cm (29.1 in.), is available as an optional extra
.
WARNING! To ensure maximum stability, particularly when moving over
uneven surfaces, reduce pedestal height to a minimum.
Take care not to trap fingers under the steering hub or between
column elements while pedestal height is being reduced.