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Operation 15
MAN0680 (11/30/2007)
DRIVELINE INTERFERENCE CHECK
1. Check for clearance between driveline and cutter
deck.
2. Slowly lift cutter and observe driveline. If clearance
between driveline and cutter deck is less than 1
inch, shorten top link or limit upper travel of lower
hitch arms. Refer to tractor operator's manual for
instructions.
CUTTING HEIGHT ADJUSTMENT
Before working underneath, disconnect drive-
line, raise cutter, lock in transport position, and
block cutter securely. Hydraulic system leak down
and failure of mechanical or hydraulic system can
cause equipment to drop.
Keep all persons away from operator control
area while performing adjustments, service, or
maintenance.
■ Avoid low cutting heights. Striking the ground
with blades produces one of the most damaging
shock loads a cutter can encounter. Allowing
blades to contact ground repeatedly will cause
damage to cutter and drive.
When selecting a cutting height, you should consider
the area of operation. If the ground is rolling and has
mounds the blades could contact, set the cutting height
accordingly.
1. Level cutter from side to side. Check by measuring
from cutter frame to the ground at each deck rail.
2. Adjust, using tractor 3-point arm leveling device.
NOTE: Keep the front of cutter level with or slightly
lower than rear for best mowing.
3. Control cutting height with tractor 3-point arms,
rear tailwheel adjustment, or optional check chains.
4. To raise rear of cutter, move tailwheel down.
5. To raise front of cutter, raise tractor 3-point arms or
shorten optional check chains.
The cutting height is the distance between the
blade and the ground. The blades are approxi-
mately 11.5" below the deck. To check cutting
height, do the following:
a) Place a straight edge along top edge of deck.
b) Select a cutting height; as an example, for an
approximate cutting height of 3", set the center
of the deck 14.5" above the ground:
c) Adjust the front-to-rear attitude from 1/2" to
3/4" higher than the front.
CHECK CHAIN ADJUSTMENT
1. Refer to Check Chain Installation (Optional), page
33 for check chain installation.
2. After making cutting height adjustment, adjust both
chains (3) in check chain bracket (2) so you have
the same number of links on each side. This will
keep your cutting level.
Figure 9. Check Chain Adjustment
DRIVELINE INSTALLATION
(TRACTOR PTO)
To Install:
Pull locking collar back and at the same time push
driveline onto tractor PTO shaft until locking device
engages.
To Remove:
Hold driveline into position, pull locking collar back, and
slide driveline off tractor PTO shaft.
Figure 10. Lock Collar
3" Desired cutting height
+ 11.5" Distance blade cutting edge is below deck
= 14.5"
2. Check chain bracket
3. Check chain