MacDon R113 Assembly Instruction Manual page 26

Term
SAE
Screw
Soft joint
spm
Tractor
Truck
Tension
TFFT
Torque
Torque angle
Torque-tension
UCA
Washer
169821
DEFINITIONS
Definition
Society of Automotive Engineers
A headed and externally threaded fastener that threads into preformed threads or
forms its own thread in one of the mating parts
A joint made with the use of a fastener where the joining materials are compressible
or experience relaxation over a period of time
Strokes per minute
Agricultural type tractor
A four-wheel highway/road vehicle weighing no less than 7500 lbs (3400 kg)
Axial load placed on a bolt or screw, usually measured in pounds (lb) or Newtons (N)
Turns from finger tight
The product of a force X lever arm length, usually measured in foot-pounds (ft·lbf)
or Newton-meters (N·m)
A tightening procedure where the fitting is assembled to a precondition (finger
tight) and then the nut is turned further a number of degrees or a number of flats to
achieve its final position
The relationship between the assembly torque applied to a piece of hardware and
the axial load it induces in the bolt or screw
Upper cross auger
A thin cylinder with a hole or slot located in the center that is to be used as a spacer,
load distribution element, or a locking mechanism
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Revision D