Jung J630D, Manual

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J630D
236 26.7.02 7. Accessories
• Screw the clamping mechanism into the grinding spindle as far as the limit stop
on the face side.
• Now unscrew the clamping bolt as far as possible anti-clockwise.
– The ejectors are retracted again.
• If possible, turn the complete screwed clamping mechanism slightly farther in
the clockwise direction.
• Tighten the clamping bolt firmly in the clockwise direction.
– Recommendation: Use a socket spanner with a T-shaped grip and a width
across the flats of 5 mm, and tighten the clamping bolt to approximately
20 Nm.
7.7.2 Unclamping the flange from the spindle
• Loosen the clamping bolt in the anti-clockwise direction as far as the backward
limit stop.
– The clamping pistons are withdrawn and the ejectors are retracted.
• Unscrew the clamping mechanism anti-clockwise as far as the limit stop.
• Now hold the grinding wheel firmly and unclamp the locating flange from the
spindle by jerking it anti-clockwise.
• Unscrew the clamping bolt 1.5 turns clockwise.
– The ejectors are positioned again.
• Remove the locating flange from the spindle.
7.7.3 Important note: clamping bolt
If you are unable to unclamp the screwed clamping mechanism from the spindle
again because the hexagon socket of the clamping bolt is too worn, you can follow
the procedure described below:
• Loosen and remove the two countersunk bolts on the end face of the screwed
clamping mechanism.
• Turn the knurled sleeve 180°.
– The first clamping bolt is now concealed by the sleeve, and the second bolt
is accessible through the hole in it.
• Screw in the two countersunk bolts again.
– You can now use the second clamping bolt with the intact hexagon socket
instead.
This second clamping bolt has exactly the same function as the first.
The only difference is that it is turned in the opposite direction.