34
Disassembly
Column bearings
3
Each column bearing is secured by four countersunk head socket screws. Ensure bearings are
replaced in their correct position. To remove column bearings proceed as follows:
3.1
Extend column to maximum.
3.2
Remove load.
3.3
Connect nitrogen charging equipment to charging point and depressurize pedestal to 50psi
(3.45bar).
3.4
Unscrew four countersunk socket screws securing each bearing and remove bearing assembly
complete.
3.5
At this point, any defective part of the bearing assembly can be replaced, in particular the grub
screws.
3.6
Lubricate bearing with 2 or 3 drops of Nycolube 11B oil through hole in centre of outer race.
3.7
Examine socket headed screws, in particular the hexagon socket. Discard any damaged items.
Steering assembly
4
To remove the steering assembly
4.1
Extend column to maximum.
4.2
Remove cover from change-over gear.
4.3
Remove pin (61) by gently tapping with a fine punch at one end, sufficiently to allow a pair of
pliers to grip the opposite end, and withdraw and discard pin. Note the relative position of shaft and
coupling and make suitable marks on both.
4.4
Ensure upper steering shaft is clear of coupling (1). Remove washer (2) from shaft.
4.5
, remove cover plate screws (16) and cover plate (15) from column. Remove
two screws (23) securing tube bracket (34) to column.
4.6
, remove joining link (24) from steering chain (23) and disengage chain from
sprocket.
4.7
Remove four screws (10) securing bracket cover (13).
4.8
Remove four screws (44) securing gear bracket (21) to fixed tube. Retain shims (45, 46) and lift
bracket upwards until lower shaft is clear of bearing.
4.9
Remove complete assembly clear of pedestal.
NOTE:
All spring pins and circlips removed should be discarded and new items fitted.
