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Section 3: Adjustments
FM3188 & FM4188 Flail Mowers 309-523M
3/21/07
Land Pride
Table of Contents
Section 3: Adjustments
!
CAUTION
Engage parking brake, shut off tractor, remove key and
disengage PTO before making any adjustments!
!
CAUTION
Secure mower with special supports if it is necessary to lift
mower off the ground to make adjustments! If not supported,
the mowercould fall causing serious injury to those present.
Leveling the Mower
Level adjustments are made at the tractor’s 3-point lower
arms and top center link.
1. Park tractor and Flail Mower on a flat level surface.
2. Slowly raise mower with the tractor’s hydraulic
3-point lift until the unit is about 1 to 2” above the
ground.
3. Ensure that the lower arms are blocked to prevent
excessive side movement.
4. Place a spirt level on the top cover running from left
to right and adjust one of the lower 3-point arms up or
down until the mower is level from left to right.
5. Adjust tractor’s top center link to place the upper
hitch pin vertically above or slightly behind the lower
hitch pins. The mower should be run with the back 15
degrees lower than the front.
6. Slowly operate the tractor's 3-point hydraulic control
up and down to check for clearance between the
tires, frame, drawbar etc.
Cutting Height Adjustment
Refer to Figure 3-1:
The machines cutting height depends upon the position
of the rear roller.
1. Remove bolts that fix the roller height on both sides.
2. Lift or lower both sides of roller in equal
measurements.
3. Replace bolts and re-tighten. Refer to “Torque
Values Chart for Common Bolt Sizes” Page 24.
4. Inspect knives to make sure they do not touch the
ground. Knives that come in contact with the ground
will wear quickly. If necessary, readjust cutting height
to keep knives from touching the ground.
Mower Hitch Adjustments
The mower hitch system has been designed for front to
back flotation when mowing on uneven terrain. Make
certain the top center link is adjusted as outlined in Step
5 under "Leveling the Mower".
Refer to Figure 3-2:
The hitch can also be adjusted from side to side by
turning the adjustment rod with the hand crank. Always
return hand crank to its storage base after use.
Cutting Height Adjustment
Figure 3-1
Hitch Adjustment
Figure 3-2
24865
Roller Cutting Height
Adjustment Holes
24864
Hand Crank
Storage Base
Adjustment
Rod
Hand Crank