Troy-Bilt 772C0748 Lawn Mower User Manual


 
18
HEADLIGHTS
On some models, the lamps are ON whenever the
tractor’s engine is running. On other models, the lamps
are ON whenever the ignition key is moved out of the
STOP position.
On all models, the lamps turn OFF when the ignition key
is moved to the STOP position.
NOTE: Never move the key into the Start position
while the engine is running. Doing so may cause
damage to your engine’s electric starter.
SECTION 7: MAKING ADJUSTMENTS
WARNING: Never attempt to make any
adjustments while the engine is running,
except where specified in the operator’s
manual.
WARNING: Disconnect the spark plug
wire(s) and ground against the engine before
performing any adjustments, repairs or
maintenance.
LEVELING THE DECK
NOTE: Check the tractor’s tire pressure before
performing any deck leveling adjustments. Refer to
TIRES in the maintenance section of this manual for
further 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
necessary as follows:
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.
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.
Loosen the jam nuts on the rear side of the deck
stabilizer bracket. See Figure 10A.
Locate the lock nuts on the opposite side of the
stabilizer bracket. See Figure 10A. Tighten the lock
nuts to raise the front of the deck; loosen the lock
nuts to lower the front of the deck.
Retighten the jam nuts 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:
Figure 10
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.
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
Jam
D
eck
Stabilizer
Bracket
Nuts
L
ock
Nuts
Deck
A
B
FRONT TO REAR
SIDE TO SIDE
Hex Cap Screw
Adjustment Ge
ar
46-inch deck support rod shown.