33
Replacing the components of the top clamp assembly
Dismantling
26
Dismantle the top clamp as follows
:
26.1 Turn the clamp (28) counter-clockwise to the ‘OFF’ position.
26.2 Remove screw (14). Using a suitable peg spanner, unscrew and remove the threaded insert (13).
26.3 Remove the clamp assembly (12) from the top clamp moulding.
26.4 Remove the clamp knob (28) and the clamp insert (27). Pull the clamp insert off the shaft of the
clamp knob.
Assembly
27
Assemble the top clamp as follows
:
27.1 Apply white bearing grease to the cam surface of the clamp insert (27) and the thread of the
clamp knob (28).
27.2 Install the clamp insert (27) on the clamp knob (28) and position in the top clamp moulding. Turn
the clamp knob (28) to the vertical, ‘off’ position
27.3 Install the clamp assembly (120 in the top clamp moulding.
27.4 Screw the threaded insert (13) onto the shaft of the clamp knob (28).
27.5 While sliding the leg in and out, gradually tighten the threaded insert (13) until the clamp begins
to grip.
27.6 If not aligned, back off the threaded insert (13) until a slot aligns with the hole for screw (14).
27.7 Back off the threaded insert (13) a further
three
slots and install screw (14) to secure the
threaded insert.
Replacing the components of the bottom clamp assembly
Dismantling
28
To dismantle the bottom clamp it is necessary to remove the oval leg.
Dismantling - current clamps
29
Remove the clamp knob as follows
29.1 Turn the clamp knob (23) counter-clockwise to the ‘OFF’ position.
NOTE:
The design of the bottom clamp has been modified
At Serial No. 03515, the shaft was fitted with a locking thread insert and the 2 x M5
grubscrews, were changed to 1 x M5 x 10 mm