MacDon R85 Rotary Disc 16 Foot Self-Propelled Windrower Headers - Manual (Page 26)

DEFINITIONS
Term Definition
PTO Power Take-Off.
RoHS (Reduction of
Hazardous Substances) A directive by the European Union to restrict the use of certain hazardous
substances (such as hexavalent chromium used in some yellow zinc platings).
SAE Society Of Automotive Engineers.
Screw
A headed and externally threaded fastener that threads into preformed threads or
forms its own thread in one of the mating parts.
Self-Propelled Windrower
(SP)
Self-propelled machine consisting of a power unit with a header and/or conditioner.
Soft joint
A joint made with the use of a fastener where the joining materials are compressible
or experience relaxation over a period of time.
spm Strokes per minute
Tractor Agricultural type tractor.
Truck A four-wheel highway/road vehicle weighing no less than 7500 lbs (3400 kg)
Tension Axial load placed on a bolt or screw, usually measured in pounds (lb) or Newtons (N).
T.F.F.T. Turns from finger tight.
Torque
The product of a force X lever arm length, usually measured in foot-pounds (ft·lbf)
or Newton-meters (Nm).
Torque angle
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.
Torque-tension
The relationship between the assembly torque applied to a piece of hardware and
the axial load it induces in the bolt or screw.
UCA Upper Cross Auger.
Washer
A thin cylinder with a hole or slot located in the center and is to be used as a spacer,
load distribution element or a locking mechanism.
Windrower Power unit of a self-propelled header.
WCM Windrower Control Module.
169457
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Rev. F