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13
Revision A
Chapter 2:
Product Overview
Refer to this section to learn about the machine
’
s dimensions, weights, and specifications.
2.1
Definitions
The following terms, abbreviations, and acronyms are used in this manual.
Table 2.1 Definitions
Term
Definition
API
American Petroleum Institute
Bolt
A headed and externally threaded fastener designed to be paired with a nut
FFFT
Flats from finger tight
Finger tight
A reference position in which the given sealing surfaces or components are making
contact with each other. The fitting has been tightened by hand to a point where the
fitting is no longer loose and cannot be tightened further by hand
n/a
Not applicable
Nut
An internally threaded fastener designed to be paired with a bolt
ORB
O-ring boss: A style of fitting commonly used in port openings on manifolds, pumps,
and motors
ORFS
O-ring face seal: A style of fitting commonly used for connecting hoses and tubes. This
style of fitting is also commonly called ORS, which stands for O-Ring Seal
R1 FR Series
R113 and R116 Rotary Disc Front Mount for Agricultural Tractors
SAE
Society of Automotive Engineers
Screw
A headed and externally threaded fastener that threads into preformed threads or forms
its own thread when it is inserted into a mating part
Tension
An axial load placed on a bolt or screw, usually measured in Newtons (N) or pounds (lb.).
This term can also be used to describe the force a belt exerts on a pulley or sprocket
TFFT
Turns from finger tight
Torque
The product of a force * the length of a lever arm, usually measured in Newton-meters
(Nm), foot-pounds (lbf
∙
ft), or inch-pounds (lbf
∙
in)
Torque angle
A tightening procedure in which a fitting is assembled to a specified tightness (usually
finger tight) and then the nut is turned farther by a specified number of degrees until it
achieves its final position
Torque-tension
The relationship between the assembly torque applied to a piece of hardware and the
axial load it induces in a bolt or screw
Tractor
Agricultural-type power unit which provides motive force to a front mounted header
Washer
A thin cylinder with a hole or a slot located in the center, used as a spacer, a load
distribution element, or a locking mechanism
