Definitions - MacDon R116 Unloading And Assembly Instructions

11.8 Definitions

The following terms and acronyms may be used in this instruction:
Term
API
APT
ASTM
Bolt
Center-link
CGVW
Disc mower
Export disc mower
FFFT
Finger tight
GVW
Hard joint
Header or Rotary Header
Hex key
hp
JIC
n/a
North American disc
mower
NPT
Nut
ORB
ORFS
PTO
RoHS (Reduction of
Hazardous Substances)
rpm
214713
REFERENCE
Definition
American Petroleum Institute
Articulated Power Turn
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 gross vehicle weight
A machine that cuts and conditions hay and is pulled by an agricultural tractor
Machine configuration typical outside North America
Flats from 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
Gross vehicle weight
A joint made with use of a fastener where joining materials are highly
incompressible
The part of the disc mower that cuts and conditions the crop
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
Joint Industrial Council: A standards body that developed standard sizing and shape
for original 37° flared fitting
Not applicable
Disc mower configuration typical in North America
National Pipe Thread: A style of fitting used for low-pressure port openings. Threads
on NPT fittings are uniquely tapered for an interference fit
An internally threaded fastener that is designed to be paired with a bolt
O-ring boss: A style of fitting commonly used in port openings 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
Power take-off
A directive by the European Union to restrict use of certain hazardous substances
(such as hexavalent chromium used in some yellow zinc platings)
Revolutions per minute
220
Revision A