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XND.00004.023_A - 02/2018
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Troubleshooting, eliminating faults
Insufficient clamping force
Dismantle, clean and damaged surfaces must be
carefully levelled off with a honing stone.
If necessary, contact the manufacturer in view of
replacing the mechanical force element.
Important: Do not dismantle the mechanical force element (pos. 90) as this will
void the guarantee
High-pressure tension too early
Release jaws. (pos. 80)
Remove bearing washer, spacing washers and
spring washers.
Important: ensure correct sequence of washers.
Remove the spindle from its bearing.
Remove stop pin (pos. 50) by releasing the threaded
pin. (pos. 140)
Use a punch to mark the position of the protruding
part of the stop pin in the spindle so that this
cannot be wrongly fitted at a later date.
Turn out the mechanical force element (pos. 90)
from the spindle nut. (pos. 30)
Grease the thread of the mechanical force element and
the spring washers. (e.g. with Microlube GBU y131)
Re-fit the mechanical force element ensuring that
the stop pin is in the correct position. (watch for the
punch mark)
Re-fit the bearing washer, spacing washer and
spring washer. Secure the countersink screw with
screw lock, medium tight.
Important: ensure correct sequence of
washers.
