Re: Progress 1S Pillar Drill – Jacobs 34 Chuck
- From: jlh45 <jlh45.3eeysn@xxxxxxxxxxxx>
- Date: Tue, 19 Aug 2008 18:26:08 -0500
The Jacobs 34 chuck comes in at least two forms of mount, the JT taper
mount and a threaded mount. The threaded mount is a female 5/8 X
16thread. The chuck body may also have a locking screw through the
centre of the body.
To find out if your chuck is of the threaded type look for the model
number, if it is 34B and stamped under the opening sizes is 5/8 16, it
is a threaded mount.
If either threaded or JT mount, the slot in the spindle may be for a
bar to be used to hold the spindle while the chuck is removed.
These mounts can be a real sod to undo, both screw and JT mounts. A JT
mount number 34 chuck which wouldn't come apart with kindness so I
pressed the chuck apart leaving the body on the mount,drilled a hole
through the centre, made a ram, put the chuck in a manual press, heated
the body with a blowtorch until it came apart - with a loud bang!!
Good luck!
John
--
jlh45
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- References:
- Progress 1S Pillar Drill – Jacobs 34 Chuck
- From: Geoffrey Johnson
- Re: Progress 1S Pillar Drill – Jacobs 34 Chuck
- From: Alan Bain
- Progress 1S Pillar Drill – Jacobs 34 Chuck
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