Dixon ZTR 501 Operator's Manual page 13

Leveling Principals:
A. There are a total of (4) threaded adjusters which will control the attitude or
pitch of the mower deck. The adjusters have lock nuts on the bottom which can be
turned up or down to raise or lower the front and rear of the mower deck. Deck
should be level or pitched slightly higher in rear.
Leveling the Deck:
A. Place the mower on a smooth level surface, check tire pressures to insure the
mower has a correct stance. Inflate tires as required:
B. Remove the discharge chute from the mower deck. Rotate or turn each outer blade
tip to align with the edge of the deck or side to side.
C. Measure from the surface up to the bottom of the blade tip on the discharge side
of the mower deck. Retain this measurement. Move to the opposite side and check
that measurement is the same. If adjustment is required, turn the nut on the
bottom of the front threaded adjuster up or down until both side to side
measurements are equal. Retain measurement.
D. Rotate or turn both outer blades to align with the deck in a front to rear
manner. Move to the left rear threaded adjuster, "left rear is designated from
operator position on the mower". Turn adjuster nut up or down until rear of
mower deck is positioned level to l/8th of an inch higher than the side to side
measurement. At this time, the mower deck will hang or be suspended on (3)
points. Move the right rear adjuster and take out the slack which will be
present by turning adjuster lock nut up. Confirm the measurement used on the
left rear of the deck. Re-install discharge chute.
NOTE:
This will place the mower deck in a base measurement position. Additional
adjustment may be required to achieve desired cut for the type of grass or
conditions being mowed.
MOWER DECK LEVELING PROCEDURE
Front - (40 - 46 lbs. maximum)
Rear - (20 - 24 lbs. maximum)
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