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17
SETUP AND ADJUSTMENTS
Mower Deck Leveling
Position machine on a flat surface. Preferably level
concrete.
Check the tire pressure in all four tires. Inflation
should be 15 psi.
Place 2x4’s on edge under the cutting deck from
front to rear and lower the deck down onto 2x4’s.
Adjust the four upper chain bolts to the center slots
in the deck lift arms. NOTE: Make sure the lift
blocks under the frame are tightly bolted to the
frame.
Check the chains for equal tension. If unequal
adjust upper chain bolt in slot.
Place the deck in the 5” cutting height and mea-
sure from the cutting edge of the blade to the flat
level surface to check the deck cutting height.
Throttle Lever Tension
Stop engine and remove key.
Throttle lever tension may be adjusted by tighten-
ing the pivot bolt. The pivot bolt secures the throttle
arm to the mounting bracket which is mounted to
the console. Access is gained by removing the
console.
1. Stop engine and remove key. Release park
brake and measure the length of the spring.
The distance between the washer on each end
of the spring should be 2-7/8". FIG - 4
2. If adjustment is needed, loosen the nut below
the spring. Then rotate nut to desired position
so the proper distance between the washers
is obtained. Check other side for proper ad-
justment.
3. Engage the brake lever and measure the dis-
tance between the trunnion pin and the collar
welded to the brake rod. Distance should be
3/16" to 1/4". FIG - 4
4. If adjustment is needed, loosen the lock nut
directly below the yoke. Using a wrench, ro-
tate the rod by turning the double nuts using
the nuts below the yoke and the nut you just
loosened, to obtain the 3/16" to 1/4" distance.
Tighten nut against yoke and check other side
for proper adjustment.
FIG - 4
Park Brake Adjustment
For Model: ZBMI48181
Park
Brake
Lever
Yoke
3/16 to 1/4
Gap Under Collar
2-7/8”
Lock Nut
Double Nuts
Trunnion Pin
Spring
Washer