Troubleshooting, Eliminating Faults - WNT HDG2 Installation And Operating Instruction

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Troubleshooting, eliminating faults

Insufficient clamping force
Important: Do not dismantle the mechanical force element (pos. 90) as this will
void the guarantee
High-pressure tension too early
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 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.
 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.
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