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Caution – MacDon CA25 OM User Manual

Page 68

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SECTION 7. OPERATION

169593

66

Revision B

7.9.2 Header

Float

D65 combine headers perform best with
minimum extra weight on the header, under
normal conditions.

7.9.2.1

Header Float Locks

The function of the header float locks is to lock
and unlock the header float system. There are
two locks - one on each side of the adapter.

IMPORTANT

The float locks must be engaged
when the header is being
transported with the adapter
attached so there is no relative
movement between the adapter and
header during transport.

The float locks must also be locked
during detachment from the
combine to allow the feeder house
to release the adapter.

a. Disengage float locks by moving latch (A)

downward, and moving lever (B) at each lock to
lowest position. In this position, the header is
unlocked, and can float with respect to the
adapter.

b. Engage the float locks by moving lever (B) up

to its highest position. In this position, the
header cannot move with respect to the
adapter.

7.9.2.2

Checking and Adjusting Float

a. Park combine on level surface.

b. Fully lower the reel and adjust the fore-aft

position between 5 and 6 on decal on the right
side reel arm.

c. Adjust center-link to mid-range (between B and

C on cylinder indicator).

d. Position cutterbar 8–12 in. (200–300 mm) off

the ground.

CAUTION

Stop engine, and remove key from ignition
before leaving Operator's seat for any
reason. A child or even a pet could engage
an idling machine.

e. Stop engine, and remove key from ignition.

f.

Check that adapter is level. If the adapter is not
level, perform the following checks prior to
adjusting the leveling linkages.

IMPORTANT

The adapter float springs are not
used to level the header.

 Check combine tire pressures.

 Check that the combine feeder house is

level. Refer to combine operator’s manual.

 Check that top of adapter is level with

combine axle.

(continued next page)

A

LOCK

UNLOCK

B

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