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Re: Have you checked your torque wrench calibration? [Re: Calypso Red] #603775
16/11/19 01:43 PM
16/11/19 01:43 PM
Joined: Sep 2011
Posts: 13,571
Mandello del Lario
Gambalunga Offline
Member of the Inner Circle
Gambalunga  Offline
Member of the Inner Circle

Joined: Sep 2011
Posts: 13,571
Mandello del Lario
You learn something every day smile

My only criticism was that he put the socket in a vice without using a set of soft jaws nono


Peter

[Linked Image]
Re: Have you checked your torque wrench calibration? [Re: Calypso Red] #603791
16/11/19 05:04 PM
16/11/19 05:04 PM
Joined: Apr 2017
Posts: 1,197
Staffordshire
IvorMog Offline
Has a lot to Say!
IvorMog  Offline
Has a lot to Say!

Joined: Apr 2017
Posts: 1,197
Staffordshire
Good advice.

Remember also that bolts should be lightly lubricated with thin machine oil (such as 3in1) or the torque applied will not translate fully into clamping force.

This is because on a dry bolt some of the torque is lost in the friction of the thread before it gets to the full clamping load.

PS. Don't forget my Cam TDC tools somestick

Last edited by IvorMog; 16/11/19 05:08 PM.

Bob

1999 4/4 2 litre Zetec
Re: Have you checked your torque wrench calibration? [Re: Calypso Red] #603812
16/11/19 08:00 PM
16/11/19 08:00 PM
Joined: Oct 2012
Posts: 2,441
Furry Boots City
RedThree Offline
Talk Morgan Expert
RedThree  Offline
Talk Morgan Expert

Joined: Oct 2012
Posts: 2,441
Furry Boots City
Have access to the torque checking machine at work that gets calibrated annually so from time to time I do check.

Re: Have you checked your torque wrench calibration? [Re: Calypso Red] #603820
16/11/19 09:11 PM
16/11/19 09:11 PM
Joined: Nov 2011
Posts: 288
Cat302 Offline
Learner Plates Off!
Cat302  Offline
Learner Plates Off!

Joined: Nov 2011
Posts: 288
Calibration of tools is always good practice. No need to place a socket in a vice, the socket will be very unhappy, just grip the square drive in your vice using soft jaws. I was always taught to use a molycote type grease on screw threads, this to ensure the delivered force is presented as a clamping force and not reduced due to frictional loss of the male female threads and shoulder contact.

Re: Have you checked your torque wrench calibration? [Re: Calypso Red] #603824
16/11/19 09:54 PM
16/11/19 09:54 PM
Joined: Apr 2014
Posts: 5,736
Renfrewshire
BobtheTrain Offline
Charter Member
BobtheTrain  Offline
Charter Member

Joined: Apr 2014
Posts: 5,736
Renfrewshire
We use a "spider" for cable testing. It consists of 19 wires pot-soldered together at one end, crocs on the other end of 18 of them and a banana plug on the last one. Believe it or not, it has to get calibrated to Network Rail's standards! That is in the real world, however, in a training environment we just ask the candidates what they would check on the spider. (Calibration and continuity).


Best Regards
Lang may yer lum reek
Re: Have you checked your torque wrench calibration? [Re: Gambalunga] #603825
16/11/19 09:55 PM
16/11/19 09:55 PM
Joined: Apr 2014
Posts: 5,736
Renfrewshire
BobtheTrain Offline
Charter Member
BobtheTrain  Offline
Charter Member

Joined: Apr 2014
Posts: 5,736
Renfrewshire
Originally Posted by Gambalunga
My only criticism was that he put the socket in a vice without using a set of soft jaws nono

Hear! Hear!


Best Regards
Lang may yer lum reek
Re: Have you checked your torque wrench calibration? [Re: IvorMog] #603837
16/11/19 11:19 PM
16/11/19 11:19 PM
Joined: Aug 2017
Posts: 100
Staffordshire UK
Calypso Red Offline OP
L - Learner Plates On
Calypso Red  Offline OP
L - Learner Plates On

Joined: Aug 2017
Posts: 100
Staffordshire UK
Originally Posted by IvorMog

PS. Don't forget my Cam TDC tools somestick


They are already in the bag and ready to go! notworthy


Calypso Red
1994 +8 BMW Calypso Red.
2002 4/4 4 seater BMW Calypso Red.
Re: Have you checked your torque wrench calibration? [Re: Calypso Red] #603969
17/11/19 11:32 PM
17/11/19 11:32 PM
Joined: Dec 2018
Posts: 315
C
ChrisConvertible Offline
Learner Plates Off!
ChrisConvertible  Offline
Learner Plates Off!
C

Joined: Dec 2018
Posts: 315
A good reason to keep that worn out socket.

I did mine a different way. I put the torque wrench in the vise sticking out and vertically hanging down rather than horizontal. I didn't use a socket, just the square in the vice with soft metal to protect it. I measured 2 foot on my particular wrench and marked it on tape. Used a 16kg kettle bell to gently hang off the tape at the mark with the torque wrench set to 70foot lb and heard it click, then put it to 71 and heard it not click so was happy as 16kg is 35.2lb and needed to be 70.4pounds at two feet. So my wrench will click somewhere between 70 and 71 and 70.4 is pretty well in the middle.

I think I prefer my method as his means having to look at the scale that is not that steady as he pulled on it.

Re: Have you checked your torque wrench calibration? [Re: Calypso Red] #604343
20/11/19 05:48 PM
20/11/19 05:48 PM
Joined: Nov 2016
Posts: 83
Dorset
J
Jads Offline
Just Getting Started
Jads  Offline
Just Getting Started
J

Joined: Nov 2016
Posts: 83
Dorset
I fully agree with Cat302 regarding regular calibration of tools, in fact I re-calibrated my hammer just this morning !!!!

Re: Have you checked your torque wrench calibration? [Re: Jads] #604408
21/11/19 07:39 AM
21/11/19 07:39 AM
Joined: Jun 2015
Posts: 658
North Somerset, UK
Deejay Offline
Talk Morgan Regular
Deejay  Offline
Talk Morgan Regular

Joined: Jun 2015
Posts: 658
North Somerset, UK
Originally Posted by Jads
I fully agree with Cat302 regarding regular calibration of tools, in fact I re-calibrated my hammer just this morning !!!!

You can’t beat being thorough...I mean, that’s really hitting the nail on the head!!


Doug

2011 +4 in Rich Maroon
1972 750 “ComDom” sprinter
1958 Triton 650
1992 Triumph Trophy 900
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