Torque Application Flashcards
(11 cards)
1
Q
Usage of torque
A
reduce fastener failures
2
Q
insufficient torque tightening will cause
A
result in part movement in assembly
3
Q
over tightening of torque
A
weakens fasteners
4
Q
Torque formula
A
Torque = F * L
Torque - lb-in
F - Pounds
L - inches
5
Q
from pound-in to pound-foot
A
divide pound-in by 12
6
Q
should you lubricate nuts and bolts when torquing
A
no
7
Q
pattern of tightening for 6 x 2 nut set up
A
9 5 1 3 7 11
10 6 2 4 8 12
8
Q
torque value on wrench formula
A
Ti = (Ta * L)/(L + E)
L = length of lever E = extension length Ta = desired torque
9
Q
add friction drag torque to desired torque recommended, T/F
A
True
10
Q
do you use a torque wrench to loosen a bolt?
A
no
11
Q
4 steps to carry out after using torque wrench
A
1) check calibration date
2) set torque value
3) set the torque wrench to min. value
4) update torque wrench traceability record
