To Adjust The Flotation - New Holland 615 Operator's Manual

To adjust the flotation, do the following:
1. Fully raise the cutter bar to the transport position.
NOTE: The flotation spring may slightly rub the
canopy support top plate or the belt shielding when
the mower is in the transport position.
The hole in the flotation spring rod, 1, should be fully
visible above the upper mount, 2, to allow installation
of the flotation engagement pin, 3. If the hole is not
visible, or is only partially visible, lengthen the spring
and rod assembly as follows:
WARNING
Disengage the PTO, turn off the tractor engine
and remove the key. Wait for all movement to
stop before leaving the operator's position.
Never adjust, lubricate, clean or unplug machine
with the engine running. Failure to comply could
result in death or serious injury.
Loosen the jam nut, 1, and thread the rod out of the
spring assembly until the hole is fully visible.
Retighten the jam nut.
IMPORTANT: Do not thread the rod out more than
114 mm (4-1/2 in) from the spring nut to the shoulder
on the rod or failure of the rod and spring can occur.
If additional adjustment is required to gain access to
the rod hole, loosen the jam nut, 2, between the lower
mount rod and the spring nut, and thread the spring
away from the lower mount. Retighten the jam nut.
IMPORTANT: Do not thread the lower mount rod out
of the lower mount, 3, or failure of the spring
assembly can occur. Ensure that there is a minimum
of 5/8 thread engagement in both the lower mount
"
and the spring assembly, or rod failure will occur.
2. After adjustment of the spring, reinstall the pin, 2
Figure 5, which is wired to the jack stand in the
flotation spring rod hole. The pin has two detent
balls and is properly installed when a detent is on
either side of the flotation spring rod.
IMPORTANT: If the pin is inserted too far, the
retaining ring can be knocked off and the pin can be
lost. This would cause loss of flotation.
NOTE: When completing the adjustment, position
the flotation spring rod, 1, Figure 5, so that the hole
is slightly above horizontal when viewed from the
rear before tightening the jam nut. This will ease
flotation pin installation.
IMPORTANT: The tractor hydraulic valve should be
placed in the "float" position to allow the cutter to
follow the contour of the ground.
SECTION 2 - OPERATION
A5074-01
114 mm (4-1/2 in)
A5074-06
2-7
1
2
3
1
5
2
3
6