2 Product Overview
2.1 Definitions
The following terms and acronyms may be used in this manual.
Term
Definition
AHHC Automatic H
eader Height Control
API American Petroleum Institute
ASTM American S
ociety of Testing and Materials
Bolt
A headed and externally threaded fastener that is designed to be paired with a nut
Center-link
Ahydraul
ic cylinder link between the header and the machine to which it is attached:
It is used
to change header angle
CGVW Combined vehicle gross weight
D-Series header
MacDon’s D50, D60, and D65 rigid draper headers
DK
Double
knife
DKD
Double-knife drive
DDD Doubl
e-draper drive
DR Double reel
FD-S
eries header MacDon’s FD70 and FD75 FlexDraper
®
headers
Finger tight
Finger tight is a reference position w here sealing surfaces or components are
making contact with each other and the fitting has been tightened to a point where
the fitting is no longer loose
FFFT
Flats from finger tight
GS
L
Gr
ound speed lever
GVW Gross vehicle weight
Hard join t
A joint made with the use of a fastener where the joining materials are
highly incom pressible
Header A machine that cuts crop and feeds it into an attached combine
Hex key
A hex key or Allen key (also known by various other synonyms) is a tool of
hexagonal cross-section used to drive bolts and screws that have a hexagonal
socket in the h ead (interna l-wrenching hexagon d rive)
HDS Hydraulic deck shift
hp Horsepower
ISC Intermediate Speed Control
JIC
Joint Industrial Council: A standards body that developed the standard sizing and
shape for original 37° flared fitting
Knife A cutting d evice which uses a reciproc ating cutter (also called a sickle)
MDS Mechanical deck shift
n/a Not applicable
147695
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Revision A
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