Quantcast

mancuna hand pillar drill chuck

UKworkshop.co.uk

Help Support UKworkshop.co.uk:

triker64

Established Member
Joined
9 Apr 2019
Messages
20
Reaction score
2
Location
Bradford
Hi I have a Mancuna hand pillar drill and would like to change the chuck for a key tightened one, any ideas if this can be done?
 

AndyT

Established Member
Joined
24 Jul 2007
Messages
11,913
Reaction score
328
Location
Bristol
Possibly. The original was a separate part before it was fitted!
I suggest you undo whatever is on there, measure the thread, and see if you can source a replacement. In my limited experience of these things the chuck will be screwed onto a threaded arbour and will unscrew easily, assuming it's the sort of three jaw chuck where the end of the arbour presses onto the rear of the jaws and so has to be free moving to work. Your keyed replacement will need a blind hole with the same diameter and thread.
 

Bod

Established Member
Joined
18 Nov 2013
Messages
973
Reaction score
18
Location
Fleet Hants
My A2X has a 20tpi x 3/4 chuck thread, if that helps.
I'm quite happy with the standard chuck, although mine is by no means showing any wear.

Bod
 

triker64

Established Member
Joined
9 Apr 2019
Messages
20
Reaction score
2
Location
Bradford
Thank you had not got to measuring the thread. only had this one a short while and never was keen on keyless chucks when trying to use a hold cutter but at least with it being a pillar it should not go off line and jam if I move.
 

kesterlester

New member
Joined
29 Jun 2020
Messages
3
Reaction score
0
Location
Cambridge
triker64":cwrnilp2 said:
Hi I have a Mancuna hand pillar drill and would like to change the chuck for a key tightened one, any ideas if this can be done?
Did you change the chuck? I just realised that my Mancuna hand drill chuck is damaged (two of three broken springs) and I'd like to replace it with an original.

If you are no longer using yours I'd by it from you for the right price .....
 

marcros

(Trevanion)+1
Joined
11 Feb 2011
Messages
10,263
Reaction score
204
Location
Leeds
is your drill a one or two speed? I have a 2 speed, but can't quite work out how to change the setting!
 

Bod

Established Member
Joined
18 Nov 2013
Messages
973
Reaction score
18
Location
Fleet Hants
The white arrow points to the speed changing device on mine.
drill speed adjust.jpg

There is a possibility, that there is quite a variation in these drills, all using the "A2X" base castings.
Mine is a two speed, and I have seen a single speed with the same "A2X" base.
A photo of yours would be interesting.

Bod.
 

Attachments

Bod

Established Member
Joined
18 Nov 2013
Messages
973
Reaction score
18
Location
Fleet Hants
kesterlester":1z53b215 said:
triker64":1z53b215 said:
Hi I have a Mancuna hand pillar drill and would like to change the chuck for a key tightened one, any ideas if this can be done?
Did you change the chuck? I just realised that my Mancuna hand drill chuck is damaged (two of three broken springs) and I'd like to replace it with an original.

If you are no longer using yours I'd by it from you for the right price .....
It's not difficult to replace the springs, just use 3 identical, as close to the one you have undamaged, for length and strength.

Bod
 

Nigel Burden

Established Member
Joined
23 Oct 2018
Messages
350
Reaction score
67
Location
Dorset
Bod":1a7nw7k6 said:
The white arrow points to the speed changing device on mine.

There is a possibility, that there is quite a variation in these drills, all using the "A2X" base castings.
Mine is a two speed, and I have seen a single speed with the same "A2X" base.
A photo of yours would be interesting.

Bod.
Mine is a single speed with an "A2X" base.

Nigel.
 

kesterlester

New member
Joined
29 Jun 2020
Messages
3
Reaction score
0
Location
Cambridge
Bod":2kbh7hjo said:
kesterlester":2kbh7hjo said:
triker64":2kbh7hjo said:
Hi I have a Mancuna hand pillar drill and would like to change the chuck for a key tightened one, any ideas if this can be done?
Did you change the chuck? I just realised that my Mancuna hand drill chuck is damaged (two of three broken springs) and I'd like to replace it with an original.

If you are no longer using yours I'd by it from you for the right price .....
It's not difficult to replace the springs, just use 3 identical, as close to the one you have undamaged, for length and strength.

Bod
OK - I'll try repairing it. I had initially dismissed trying this as I couldn't get easy access to the jaws, however affter a bit of cleaning off of grime, I can see two holes in top of the check which suggests that with a pin wrench I can unscrew the neck of the chuck from the rest. Is that how it works? If so I hope it's a RH not a LH thread.
 

Attachments

Bod

Established Member
Joined
18 Nov 2013
Messages
973
Reaction score
18
Location
Fleet Hants
Yes, looking at mine, it has the same two pin spanner holes, but mine has no step from the pin hole shoulder to the knurled hand grip.
Look carefully at the knurled area, for a screw head, which is there to prevent the chuck from coming apart in use.
Mine does not have a side screw, but some chucks do.
I would expect a fairly fine thread holding the shoulder to the knurled hand grip.
If you have to use a strap wrench, put that at the tapered end, of the knurling, to avoid squeezing the shoulder threads.

Bod.
 

kesterlester

New member
Joined
29 Jun 2020
Messages
3
Reaction score
0
Location
Cambridge
There was no side locking screw on my chuck. I couldn't find an appropriate pin spanner, but could hold the pin-end of the chuck in a vice and could get a grip on knurled area with another. Fortunately everything was sufficient well oiled and not seized that I could then get it open. For reference the jaw springs in my chuck look to be 4mm by 21mm uncompressed, and an be compressed down to about half their length. So I'l try to get hold of some of them. My local shop shut 30 mins before I got them out.
 

triker64

Established Member
Joined
9 Apr 2019
Messages
20
Reaction score
2
Location
Bradford
is your drill a one or two speed? I have a 2 speed, but can't quite work out how to change the setting!
No mine appears to be a single speed but when drilling if you just turn the handle and leave the feed wheel alone it does self feed albeit slowly
 

triker64

Established Member
Joined
9 Apr 2019
Messages
20
Reaction score
2
Location
Bradford
Did you change the chuck? I just realised that my Mancuna hand drill chuck is damaged (two of three broken springs) and I'd like to replace it with an original.

If you are no longer using yours I'd by it from you for the right price .....
No not cha fed it yet decided to live with it for a while and see how it goes.
 
Top