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MAINTENANCE
Parking brake
To adjust parking brake
Jack up unit and support properly with jack
stands. Allow clearance to work at rear
transaxles. Before making any adjustments:
Set park brake.
Measure the distance between the rod swivel
pin and the brake arm washer. With the brake
engaged, there should be a gap of 1/8” to 1/2”
(3 mm to 13 mm) between the swivel pin and
the brake arm washer.
If measurement is out of range adjust as
follows:
Disengage park brake lever. Remove
retaining clip and remove brake arm by
pulling horizontally from the IZT splined shaft.
Rotate brake arm on spline “rearward” to
increase brake tension. Rotate the brake arm
one spline “forward” to decrease brake arm
tension.
Reinstall the retaining clip and recheck gap
between rod swivel pin and brake rod washer.
Repeat the procedure on the other IZT.
Tracking adjustment
If the mower is not tracking straight, check
the air pressure in both rear tires.
Recommended air pressure is 15 psi (1 bar).
If the unit will not track straight, follow the
steps below. Tracking must be checked on a
flat and level concrete or blacktop surface.
Mower is tracking to the right.
Increase the air pressure 2-3 psi (0.1-0.2 bar)
in the right rear tire or decrease the air
pressure 2/3 psi in the left rear tire.
Mower is tracking to the left.
Increase the air pressure 2-3 psi (0.1-0.2 bar)
in the left rear tire or decrease the air
pressure 2/3 psi in the right rear tire.
Recheck tracking and keep making
adjustments with the tire pressure until the
unit tracks straight.
DO NOT exceed maximum recommended
tire pressure 24 psi (1.6 bar).
Record the tire pressure for future reference.
1
2
3
Park brake
1. Gap 1/8” to 1/2” between swivel and washer
2. Retaining clip
3. Brake arm
8050-160