MacDon CA25 OM - Manual (Page 66)

SECTION 7. OPERATION
169593
64
Revision B
12-5/8 in +/-1.0
(320 mm +/-25)
4. Lower header to desired cutting height
using combine controls, and check spring
length as shown. Re-adjust wheels as
required to achieve range.
IMPORTANT
Continuous operation with
excessive spring
compression
(i.e. spring length
shorter than
(11-5/8 in. [295 mm])
can result in damage to
suspension system.
d. Set up the stabilizer/slow speed
transport wheels, if installed, as follows:
Otherwise, proceed to step e.
1. Adjust right wheels as follows:
i. Remove hairpin (D) from latch.
ii. Disengage latch (E) and lift right wheel
out of hook, and place on ground as
shown. This reduces weight of
assembly, and makes adjusting wheel
position easier.
iii. Support left wheel weight by lifting
slightly with one hand. Pull up on
handle (F) to release lock.
iv. Lift left wheel to desired height, and
engage support channel into slot (G) in
upper support.
v. Push down on handle (F) to lock.
vi. Lift right hand wheel back into field
position, and ensure latch (E) is
engaged.
vii. Secure latch with hairpin (D).
2. Adjust left wheels as follows:
i. Support wheel weight by lifting slightly
with one hand. Pull up on handle (F) to
release lock.
ii. Lift wheels to desired height, and
engage support channel into slot (H) in
upper support.
iii. Push down on handle (F) to lock.
iv. Lower header to desired cutting height
using combine controls, and check load
indicator as shown below. Re-adjust
wheels as required to achieve range
between 2 and 3 as shown below.
IMPORTANT
Continuous
operation with
excessive spring
compression
(i.e. load indicator
reading greater
than #4) can
result in damage
to suspension
system.
e. Adjust header angle to desired working angle
with the machine’s header angle controls. If
angle is not critical, set it to mid-position.
f. Use the combine AHHC to automatically
maintain cutting height. Refer to your combine
Operator’s Manual and AHHC instructions for
details.
NOTE
Header angle adjustments or AHHC
ground pressure control may be used
for ’on-the-go’ cut height adjustments.
TRANSPORT TO FIELD - RH SIDE
D
E
G
F
RELEASE
LOCK
A
RELEASE
LOCK
H
F