Leveling the Mower, Cutting Height Adjustment

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.

Roller Cutting Height
Adjustment Holes	24865

Cutting Height Adjustment

Figure 3-1

Hand Crank

Storage Base

Adjustment

Rod

Hand Crank

24864

Hitch Adjustment

Figure 3-2

14 FM3188 & FM4188 Flail Mowers 309-523M

3/21/07