MacDon HC10, Operation And Parts Manual

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PRODUCT OVERVIEW
Term Definition
rpm Revolutions per minute
RoHS (Reduction of
Hazardous Substances) A directive by the European Union to restrict 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 mating parts
Soft joint
A joint made with use of a fastener where joining materials are compressible or
experience relaxation over a period of time
Timed knife drive
Synchronized motion applied at cutterbar to two separately driven knives from a
single hydraulic motor
Tension Axial load placed on a bolt or screw, usually measured in Newtons (N) or pounds (lb.)
TFFT Turns from finger tight
Torque
The product of a force X lever arm length, usually measured in Newton-meters
(N·m) or foot-pounds (ft·lbf)
Torque angle
A tightening procedure where fitting is assembled to a precondition (finger tight) and
then nut is turned further a number of degrees or a number of flats to achieve its
final position
Torque-tension
The relationship between assembly torque applied to a piece of hardware and axial
load it induces in bolt or screw
Washer
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 A