MTD 760-770 Operator's Manual page 21

IMPORTANT:
After cleaning your deck with the Deck Wash
System™ , return to the operator's position and engage the PTO.
Keep the cutting deck running for a minimum of two minutes,
allowing the underside of the cutting deck to thoroughly dry.
Adjustments
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 performing any
deck leveling adjustments. Refer to Tires in the Service section of
this manual for more information regarding tire pressure.
Front To Rear
The front of the cutting deck is supported by a stabilizer bar that
can be adjusted to level the deck from front to rear. The front of
the deck should be between ¼-inch and 3⁄8-inch lower than the
rear of the deck. 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
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 ¼" 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 nut on the front side of the stabilizer bracket. See
Fig. 6-4
• Tighten the nut to raise the front of the deck;
• Loosen the nut to lower the front of the deck.
Figure 6-4
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:
4. 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.
5. 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.
6. Loosen, but do NOT remove, the hex cap screw on the left
deck hanger bracket. See Fig. 6-5.
Figure 6-5
7. Balance the deck by using a wrench to turn the adjustment
gear (found immediately behind the hex cap screw just
loosened) clockwise/up or counterclockwise/down. The deck
is properly balanced when both blade tip measurements
taken earlier are equal.
8. Retighten the hex cap screw on the left deck hanger bracket
when proper adjustment is achieved.
Seat Adjustment
Refer to the Set-Up and Assembly section of this manual for seat
adjustment instructions.
Parking Brake Adjustment
WARNING!
Never attempt to adjust the brakes
while the engine is running. Always disengage PTO,
move shift lever into neutral position, stop engine
and remove key to prevent unintended starting.
If the tractor does not come to a complete stop when the brake
pedal is completely depressed, or if the tractor's rear wheels
can roll with the parking brake applied, the brake is in need of
adjustment. See an authorized service dealer to have your brakes
properly adjusted.
S 6 — M
ection
& a
aintenance djuStMentS
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