MacDon FD75 OM - Manual (Page 35)

2 Reference
2.1 Definitions
The following terms and acronyms may be used in this manual.
Term Definition
AHHC Automatic Header Height Control
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.
Center-link
A hydraulic cylinder or manually adjustable turnbuckle type 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 rigid draper header.
DK Double knife.
DKD Double-knife drive.
DDD Double draper drive.
DR Double reel.
FD-Series header MacDon FlexDraper
®
header.
Finger tight
Finger tight is a reference position where 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.
GSL Ground speed lever.
GVW Gross vehicle weight.
Hard joint
A joint made with the use of a fastener where the joining materials are
highly incompressible.
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 head (internal-wrenching hexagon drive).
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 device which uses a reciprocating cutter. Also called a sickle.
n/a Not applicable.
Nut An internally threaded fastener that is designed to be paired with a bolt.
169894 21 Revision A