Model TA50RT
Rev. 1 04/99
5
5 - 19
MAINTENANCE SCHEDULES
5.3.6.5 Zoom Pads
Zoom pads should be replaced as follows, depending on the type of pad:
5.3.6.5.1 Front Zoom Pad Replacement
To replace the front zoom pads, proceed as follows:-
a) Support the inner zoom boom. Unbolt the front pad, keep pads and remove pads as necessary.
b) Replace the pads by hammering gently into place.
c) Replace and secure the keep plates.
d) Repeat this procedure for the side and top pads if replacement is required.
5.3.6.5.2 Rear Zoom Boom Replacement
To replace the rear zoom pads, proceed as follows:-
a) Remove the rear zoom cylinder pins, cage and cage levelling brackets that are bolted to the front of
the zoom boom inner.
b) Pull the inner boom backwards, until the pads are accessible at the rear of the zoom boom.
c) Replace the pads and re-assemble the zoom boom.
5.3.6.6 Lift Cylinder Seals
Should the lift cylinder seals be damaged, they can be replaced as follows:
5.3.6.6.1 Seal Replacement - Cylinder In-Place
To replace the lift cylinder seals without removing the cylinder from the machine, proceed as follows:-
(a) Support the boom and release the cylinder pressure.
(b) Clean the cylinder end and loosen the cylinder end cap. Undo the end cap several turns.
(c) Remove the rod end pin and support the cylinder barrel. Undo the end cap end and withdraw it
carefully over the piston rod. Take care to ensure that no dirt enters the system.
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