MTD 619 Operator's Manual page 16

Hydrostatic lawn tractor
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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 9A.
Locate the two lock nuts on the opposite side of the
stabilizer bracket. See Figure 9A. 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.
A
Deck
Stabilizer
Bracket
Deck
FRONT TO REAR
Parking Brake Adjustment
WARNING:
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. The brake
disc can be found on the right side of the transmission
in the rear of the tractor. Adjust if necessary as
follows:
Looking at the transmission from the right side of
the tractor, locate the compression spring and
brake disc.
Lock
Nuts
Jam
Nuts
Never attempt to adjust the
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 9B.
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.
B
SIDE TO SIDE
Figure 9
Carefully remove the cotter pin from the crown nut
on the right side of the brake assembly.
Using a feeler gauge, check the gap between the
brake disc and the brake puck. Proper gap is .011".
Tighten the crown nut until the proper gap is
achieved.
Insert a replacement cotter pin (part number 714-
0111) into the crown nut.
Seat Adjustment
WARNING:
make sure the seat is engaged in the seat
stop, stand behind the machine and pull back
on seat until fully engaged into stop.
16
Adjustment Gear
Hex Cap Screw
Before operating this machine,

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