MTD OEM-190-821 Operator's Manual download pdf (Page 17)

• Replace hex nut and lock washer and retighten the

jam nut after proper adjustment is achieved.

NOTE: Threading the ball joints too far onto the drag

links will cause the front tires to "toe-in" too far. Proper

toe-in is between 1/16" and 5/16".

Front tire toe-in can be measured as follows:

• Place the steering wheel in position for straight

ahead travel.

• In front of the axle, measure the distance

horizontally from the inside of the left rim to the

inside of the right rim. Note the distance.

• Behind the axle, measure the distance horizontally

from the inside of the left rim to the inside of the

right rim. Note the distance.

• The measurement taken in front of the axle should

be between 1/16" and 5/16" less than the

measurement taken behind the axle. Adjust if

necessary.

Leveling the Deck

NOTE: Check the tractor’s tire pressure before

performing any deck leveling adjustments. Refer to

Tires on page 24 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

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 two jam nuts on the rear side of the

deck stabilizer bracket. See Figure 11Figure 11A.

• Locate the two lock nuts on the opposite side of the

stabilizer bracket. See Figure 11Figure 11A.

Tighten the lock nuts to raise the front of the deck;

loosen the lock nuts to lower the front of the deck.

• Retighten the two 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:

• 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

measurements taken should be equal. If they’re

not, proceed to the next step.

• Loosen, but do NOT remove, the hex cap screw on

the left deck hanger bracket. See Figure 11B.

• 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.

• Retighten the hex cap screw on the left deck

hanger bracket when proper adjustment is

achieved.

Figure 11

Jam

Deck

Stabilizer

Bracket

Nuts

Lock

Nuts

Deck

FRONT TO REAR

SIDE TO SIDE

Hex Cap Screw

Adjustment Gear

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 43 44

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MTD OEM-190-821 Operator's Manual Page 17

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