215333
23
Revision A
Chapter 2:
Product Overview
2.1
Definitions
The following terms and acronyms may be used in this manual:
Term
Definition
API
American Petroleum Institute
APT
Articulated Power Tongue
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)
