Definitions - MacDon FFT FD75 Assembly Instructions Manual

7.3 Definitions

The following terms and acronyms may be used in this manual.
Term
API
ASTM
Bolt
Center-link
CGVW
DWA
Finger tight
FFFT
GVW
Hard joint
Header
Hex key
hp
ISC
JIC
n/a
Nut
NPT
ORB
ORFS
RoHS (Reduction of
Hazardous Substances)
SAE
Screw
Soft joint
214325
REFERENCE
Definition
American Petroleum Institute
American Society of Testing and Materials
A headed and externally threaded fastener that is designed to be paired with a nut
A hydraulic cylinder link between header and machine used to change header angle
Combined vehicle gross weight
Double Windrow Attachment
Finger tight is a reference position where sealing surfaces or components are
making contact with each other, and fitting has been tightened to a point where
fitting is no longer loose
Flats from finger tight
Gross vehicle weight
A joint made with use of a fastener where joining materials are highly
incompressible
A machine that cuts crop and feeds it into an attached combine
A tool of hexagonal cross-section used to drive bolts and screws that have a
hexagonal socket in head (internal-wrenching hexagon drive); also known as an
Allen key and various other synonyms
Horsepower
Intermediate Speed Control
Joint Industrial Council: A standards body that developed standard sizing and shape
for original 37° flared fitting
Not applicable
An internally threaded fastener that is designed to be paired with a bolt
National Pipe Thread: A style of fitting used for low pressure port openings. Threads
on NPT fittings are uniquely tapered for an interference fit
O-ring boss: A style of fitting commonly used in port opening on manifolds, pumps,
and motors
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
A directive by the European Union to restrict use of certain hazardous substances
(such as hexavalent chromium used in some yellow zinc platings)
Society of Automotive Engineers
A headed and externally threaded fastener that threads into preformed threads or
forms its own thread into a mating part
A joint made with use of a fastener where joining materials are compressible or
experience relaxation over a period of time
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