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Revision A
8.11
Definitions
The following terms and acronyms may be used in this instruction:
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
Cab-forward
Windrower operation with Operator and cab facing in direction of travel
Center-link
A hydraulic cylinder link between header and machine used to change header angle
CGVW
Combined gross vehicle weight
Export header
Header 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
A machine that cuts and lays crop into a windrow and is attached to a windrower
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
HPT display
Harvest Performance Tracker display module on a windrower
JIC
Joint Industrial Council: A standards body that developed standard sizing and shape for
original 37° flared fitting
M1 Series
MacDon M1170 and M1240 Windrowers
n/a
Not applicable
North American header
Header 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
PARK
The slot opposite the NEUTRAL position on operator
’
s console of M1 Series windrowers
R2 SP Series
MacDon R216 Rotary Disc Headers for windrowers
rpm
Revolutions per minute
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