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Revision A
10.6
Definitions
The following terms, abbreviations, and acronyms may be used in this instruction.
Term
Definition
API
American Petroleum Institute
APT
Articulated Power Turn
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 the header and machine used to change header angle
CGVW
Combined gross vehicle weight
Export rotary disc pull-type
Machine configuration typical outside North America
FFFT
Flats from finger tight
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
GVW
Gross vehicle weight
Hard joint
A joint made with use of a fastener where joining materials are highly incompressible
Header or rotary header
The part of the rotary disc pull-type that cuts and conditions the crop
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
JIC
Joint Industrial Council: A standards body that developed standard sizing and shape for
original 37° flared fitting
n/a
Not applicable
North American rotary disc
pull-type
Rotary disc pull-type configuration typical in North America
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
Nut
An internally threaded fastener that is 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
PTO
Power take-off
R1 PT Series
R113 and R116 Rotary Disc Pull-Types
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)
Rotary disc pull-type
A machine that cuts and conditions hay and is pulled by an agricultural tractor