214325 292 Revision A
7.3 Definitions
The following terms and acronyms may be used in this manual.
Term
Definition
API American Petroleum Institute
ASTM American Society of Testing and Materials
Bolt
A headed and externally threaded fastener that is designed to be paired with a nut
Center-link
A hydraulic cylinder link between header and machine used to change header angle
CGVW Combined vehicle gross weight
DWA Double Windrow Attachment
Finger tight
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
FFFT
Flats from finger tight
GVW Gross vehicle weight
Hard joint
A joint made with use of a fastener where joining materials are highly
incompressible
Header
A machine that cuts crop and feeds it into an attached combine
Hex key
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
hp Horsepower
ISC Intermediate Speed Control
JIC
Joint Industrial Council: A standards body that developed standard sizing and shape
for original 37° flared fitting
n/a
Not applicable
Nut
An internally threaded fastener that is designed to be paired with a bolt
NPT
National Pipe Thread: A style of fitting used for low pressure port openings. Threads
on NPT fittings are uniquely tapered for an interference fit
ORB
O-ring boss: A style of fitting commonly used in port opening 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
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 into a mating part
Soft joint
A joint made with use of a fastener where joining materials are compressible or
experience relaxation over a period of time
REFERENCE
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