25
Elimination of radial and side play on the top stage
10
To eliminate radial and side play in the top stage (
10.1 Remove the load from the pedestal (
See “Removing a load” on page 18.
).
10.2 Depressurize the pneumatic system (
See “Adjusting pressure” on page 18.
10.3 Partly extend the elevation tube and engage the bottom clamp.
10.4 Remove the roller cover
from the rollers opposite the top clamp by prising off with a flat bladed
screwdriver.
10.5 Adjust the grub screws
in each roller housing equally until radial and side play has been
eliminated but the top stage still moves freely.
10.6 Degrease the grub screws by spraying degreasant into the threaded holes and secure them with
a drop of Loctite 222E.
10.7 Refit the roller cover
Wheel alignment (studio version).
11
To re-align the skid wheels:
11.1 Separate the column from the skid (
See “Transportation and storage” on page 20.
11.2 Engage track lock on each castor (
See “Pedestal movement” on page 19.
).
11.3 Referring to
remove two screws (4) from each foot support (5) and remove foot support.
11.4 Using special wheel nut spanner (Part No.
) remove nut (6) on each leg.
11.5 Apply Loctite 242 to the nuts, re-install and tighten lightly.
11.6 Align the wheel on the fixed leg so that it runs parallel to the leg. Tighten nut (6) on the fixed leg.
11.7 Adjust each other leg in turn so that the skid runs in a straight line. Tighten nuts (6).
11.8 Install foot support (5) on each leg and secure with two screws (4).
Minor repairs
Leak testing and rectification on the top stage.
12
If it becomes apparent that air pressure is being lost, pressurize the pedestal and check for leaks by
applying a strong soap solution with a small paint brush around the control valve (
item 22) and the
large grub screw (
item 27) on the opposite side of the tank top plate. Leaks will be apparent by the
