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16
Column
Install the column on the skid as follows:
Fully slacken the skid clamp
(16)
and ensure that the rubber straps
(8)
on each foot support
are to the outside of the ball joint.
Ensure the control valve
(26)
is set to the WORK position.
Release the Velcro retaining strap
(19)
.
Hold the telescopic column upright with the steering ring uppermost and swing the three
struts
(7)
up almost to horizontal.
Lift the column assembly by the steering ring
(3)
and lower it vertically into the skid centre
casting, ensuring that the steering tube
(20)
engages correctly with the skid. Turn the steer-
ing ring to fully engage the steering tube
(20)
.
Engage the struts
(7)
on the foot supports
(8)
and secure each strut to the foot support with
the rubber strap.
Tighten the skid clamp
(16)
, using moderate hand pressure only. The clamp lever has a
spring-loaded ratchet-type action and is operated as follows:
Turn the clamp lever
(16)
clockwise as far as possible.
Pull the lever outward against the spring pressure, return it to vertical and release.
Turn lever clockwise again.
Repeat until the skid clamp is sufficiently tightened.
Secure the Velcro retaining strap
(19)
clear of the skid wheels.
Slide the steering indicator
(4)
to the desired position.
Setting the control valve
The control valve
(26)
safely switches the pedestal between PUMP and WORK modes, and has
three distinct positions and functions.
Pump
Pump mode isolates the moving column
(5)
from the full pedestal pressure and engages the built-
in pump mechanism. To select PUMP mode, proceed as follows:
Depress the control valve
(26)
against the spring force, and rotate the lever fully clockwise
to a horizontal position. The control valve
(26)
will remain in a depressed position.
Refer to
Pressurizing the pedestal using the built-in pump
on page 19 for self-pumping instruc-
tions.
NOTE:
Set the control valve
(26)
to PUMP mode when transporting the pedestal, to
isolate the moving column
(5)
from internal pressure. Refer to
Transportation
and storage
on page 26 for more information.