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Thread: Camlock query
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31st May 2014, 12:04 AM #1
Camlock query
Hi
Are the camlock pins supposed to be loose in the backplate ? I noticed on my chipmaster , after I screwed the 3 pins down to the marking line , they are loose .
Another thing is , the eccentric locking pivots in the hub, do not seem to apply enough pulling force on the backplate . I can actually turn the eccentric pins and feel them tightening but if I keep turning them past the marked /\ locking position they go around 360 degrees .
Mike
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31st May 2014 12:04 AM # ADSGoogle Adsense Advertisement
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31st May 2014, 12:18 AM #2
Hi Mike,
There should be a small (M6) SHCS next to the pin that stops them from turning.
If you can turn the cams right round, you need to adjust the pins into the backplate in by a turn, then try again. Your cams or pins may be worn meaning the gauge line doesn't really mean much.
Ew1915 17"x50" LeBlond heavy duty Lathe, 24" Queen city shaper, 1970's G Vernier FV.3.TO Universal Mill, 1958 Blohm HFS 6 surface grinder, 1942 Rivett 715 Lathe, 14"x40" Antrac Lathe, Startrite H225 Bandsaw, 1949 Hercus Camelback Drill press, 1947 Holbrook C10 Lathe.
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31st May 2014, 12:25 AM #3
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31st May 2014, 12:30 AM #4
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31st May 2014, 12:37 AM #5
I presume that is normal, all mine do it. The specs ay the bolt heads are 9.5mm and the groove is R5 so there is some slop there already.
Ew1915 17"x50" LeBlond heavy duty Lathe, 24" Queen city shaper, 1970's G Vernier FV.3.TO Universal Mill, 1958 Blohm HFS 6 surface grinder, 1942 Rivett 715 Lathe, 14"x40" Antrac Lathe, Startrite H225 Bandsaw, 1949 Hercus Camelback Drill press, 1947 Holbrook C10 Lathe.
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31st May 2014, 07:53 AM #6Philomath in training
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The small SHCS are just to hold the pins in the right position so the cams can grab them.A little bit of loose is alright. As Ewan says, you screw the pins into the chuck/ backing plate enough so that the cams on the spindle can't turn 360.
Michael
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31st May 2014, 09:00 AM #7SENIOR MEMBER
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Hi Mike,
the pins are supposed to be loose while the chuck is off the spindle.
If you can turn the eccentric past the mark on the spindle collar then you need to remove the chuck and unscrew the SHCS that retains the pin then screw the pin in one more turn, replace the SHCS and try the fit again.
You do this with each pin on the chuck so the mark on the eccentric lands between the marks on the spindle collar.
Phil
on edit, you type too fast Michael
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31st May 2014, 12:14 PM #8
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31st May 2014, 10:47 PM #9
pdf file
Hi
I cannot download this ( dialup connection ) but apparently it has the info re: camlock chucks.............
http://pdf.directindustry.com/pdf/rohm-15881.html
http://www.google.com.au/url?sa=t&rc...67720277,d.dGI
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