Troy-Bilt Transmatic Lawn Tractor 77T - Manual (Page 16)

16
5
Adjusting
Your Lawn
Tractor
Figure 11
Figure 10
WARNING
Never attempt to
make any adjust-
ments while the
engine is running,
except where speci-
fied in the operator’s
manual.
WARNING: Never attempt to
make any adjustments while
the engine is running, except
where specified in the operator’s
manual.
Leveling the Deck
NOTE: Check the tractor’s tire pressure before perform-
ing any deck leveling adjustments. Refer to
Tires on
page 20 for information regarding tire pressure.
Front To Rear
The front of the cutting deck is supported by a stabilizer
bar that can adjusted to level the deck from front to rear.
The front of the deck should be between 1/4-inch and
3/8-inch lower than the rear of the deck. Adjust if neces-
sary as follows:
1. With the tractor parked on a firm, level surface, place
the deck lift lever in the top notch (highest position)
and rotate the blade nearest the discharge chute so
that it is parallel with the tractor.
2. Measure the distance from the front of the blade tip to
the ground and the rear of the blade tip to the ground.
The first measurement taken should be between
1/4” and 3/8” less than the second measurement.
Determine the approximate distance necessary for
proper adjustment and proceed, if necessary, to the
next step.
3. Locate the jam nut and lock nut on the front side of the
stabilizer bracket. See Figure 10. After loosening the
jam nut:
Tighten the lock nut to raise the front of the deck;
Loosen the lock nut to lower the front of the deck.
4. Retighten the jam nut loosened earlier when proper
adjustment is achieved.
Side to Side
If the cutting deck appears to be mowing unevenly, a side
to side adjustment can be performed. Adjust if necessary
as follows:
1. With the tractor parked on a firm, level surface, place
the deck lift lever in the top notch (highest position)
and rotate both blades so that they are perpendicular
with the tractor.
2. Measure the distance from the outside of the left blade
tip to the ground and the distance from the outside of
the right blade tip to the ground. Both measurements
taken should be equal. If they’re not, proceed to the
next step.
3. Loosen, but do NOT remove, the hex cap screw on
the left deck hanger bracket. See Figure 11.
4. Balance the deck by using a wrench to turn the
adjustment gear (found immediately behind the hex
cap screw just loosened) clockwise/up or counter-
clockwise/down. The deck is properly balanced when
both blade tip measurements taken earlier are equal.
5. Retighten the hex cap screw on the left deck hanger
bracket when proper adjustment is achieved.