FLENDER ARPEX ARS-6 - Demounting; Split Clamping Hubs with Half­shell

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ARPEX 8704 en
Operating instructions 01/2019
6.6.2 Demounting
Undo the tensioning bolts evenly one after the other. Each bolt must be loosened only half a turn per pass.
Unscrew all tensioning bolts 3 to 4 thread turns.
If the clamping ring does not come free off the clamping or slip hub by itself, forcingoff bolts to match the
number of available threads must be inserted in the ARPEX flange and evenly tightened until the clamping
ring comes free. Before once more pulling on the clamping ring, remove the bolts once more!
Clamping and slip hubs of type 124 (see Fig. 11) have, dependent on the size, already been equipped with
forcingoff bolts in the clamping ring. Before once more pulling on the clamping ring screw them back to
their original position!
If these actions do not work in case of larger clamping hubs, oil must be pumped by a highpressure pump
into the join between the clamping ring and the clamping hub to release the clamping ring. For this the
highpressure hose of the pump must be connected to the clamping ring via the G1/4" connecting thread
on the outer circumference (see Fig. 13).
Before reclamping remove the forcingoff bolts and reseal the G1/4" connecting thread, using the plug
supplied with the unit.
If the clamping ring is pulled off the clamping hub hydraulically, the bevel faces must be cleaned of
hydraulic oil and regreased with "Altemp Q NB 50" (Co. Klüber).
Observe the manufacturer’s instructions for handling the solvent.
Released clampinghub connections do not have to be demounted and regreased before being
retensioned. If however the bevel faces still have to be regreased, the abovementioned lubricant must
be used.
6.7 Split clamping hubs with halfshell
The halfshells are loosely bolted to the hubs (see figure 14).
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3
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Fig. 14: Split clamping hub with halfshell
1 Marking by numbers
2 Gap dimension
3 Marking by numbers