SECTION 2 - OPERATION
2-5
CUTTER BAR FLOTATION
Cutter bar flotation is controlled by the height of the
frame above the ground and by the length of the
flotation spring.
Adjust the limit chains so that the hitch pins, 1, are as
to close to but not less than the distance above the
ground as set out below for the various models. See
“Attaching the Mower to the Tractor” section of this
manual.
Model PIN Distance of
hitch pin
above
ground--
Standard
Distance of
hitch pin
above ground--
with High
Stubble kit
615 628301
and
above
609 mm (24 in) 660 mm (26 in)
615 628300
and
below
457 mm (18 in) 508 mm (20 in)
616, 617 All 457 mm (18 in) 508 mm (20 in)
NOTE: Raising the mower frame height will increase
the flotation. Some tractors may be need this
adjustment.
Initially, adjust the flotation spring to the length, A,
between the ends of the spring coils as set out in the
following table:
Model PIN Length A
615 603822 and below 864 mm (34 in)
615 603823 and above 845 mm (33-1/4 in)
616 606812 and below 902 mm (35-1/2 in)
616 606813 and above 902 mm (35-1/2 in)
617 607111 and below 902 mm (35-1/2 in)
617 607112 and above 921 mm (36-1/4 in)
The flotation spring can be adjusted, as field
conditions vary, to achieve the flotation desired.
Lengthening the spring increases the amount of
flotation (making the cutter bar lighter), while
shortening the spring decreases the amount of
flotation (making the cutter bar heavier).
A3679-2
1
A
DISTANCE OF HITCH PIN
ABOVE GROUND
3
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