We used to test 2 W&B's against each other - single click in stereo.I hate clickers - the only thing they have going for them is speed.And since when did speed become more important than a quality job?
We used to test 2 W&B's against each other - single click in stereo.I hate clickers - the only thing they have going for them is speed.And since when did speed become more important than a quality job?
In and out of jobs, running free
Waging war with society
About then - bonus systems to get productivity up.It worked....but customers got less for their money when less was done to pump the jobs out quickly.
More speed,less haste my boss used to tell me.Now I am seeing the young guys doing just that.Old dogs learned their tricks when they were young.....
In and out of jobs, running free
Waging war with society
I've got a W&B 3/4" drive torque wrench, not sure how accurate it is.
the best Ive seen was a company in taranaki, that put small hydraulic jacks on the studs, stretched the studs with the jacks then wound the nuts down hand tight, then released the jacks, they used this on Petrochemical pipe work.
These days the angle method is used more than an ultimate torque figure - a low initial torque,then 90 deg,plus 90 is common.
In and out of jobs, running free
Waging war with society
Great system, common also on very large engines, I used this system regularly on the head studs of a 4400kw 9cyl pielstick engine...essentually bolt stretch, and all the studs are tensioned at the same time to the same load. Perfect.
Torque turn method it called, used on medium size gear. But bolt stretch is still best. ie con rod bolts. mike the length then tension them until they stretch a pre determined length.
Then there is the most common method known as the "Kiwi back yard bike mechanic method"...Tighten intill bolt thread strips then back 1/4 turn.
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