Mower Adjustments - Simplicity LTH series Service Manual

MOWER ADJUSTMENT
WARNING
Before checking mower, shut off PTO and
engine. Allow all moving parts to stop. Remove
ignition key, then disconnect the spark plug wire
and fasten it away from the spark plug.
Leveling The Mower
If the cut is uneven, the mower may need leveling.
Unequal or improper tire pressure may also cause an
uneven cut. Make sure tire pressure is correct as speci-
fied in Checking Tire Pressure.
1. With the mower installed, place the tractor on a
smooth, level surface such as a concrete floor. Turn
the front wheels straight forward.
2. Check for bent blades and replace if necessary.
3. Disengage the PTO. Place the mower in mid-cutting
height position. Arrange the mower blades so that
they are pointing from side-to-side.
4. Measure the distance between the outside tips of
each blade and the ground. If there is more than 1/8"
(3mm) difference between the measurements on
each side, proceed to step 5. If the difference is 1/8"
(3mm) or less, proceed to step 6.
5. See Figure 16. Loosen the outside nut (A). Turn the
eccentric nut (B) to raise or lower left-hand side of
mower. When mower is level, hold the eccentric nut
while tightening the outside nut.
TURBO COLLECTION SYSTEM NOTE:
When using a turbo collection system, raise the dis-
charge side of the mower approximately 1/4" to com-
pensate for turbo assembly weight. Check the level of
the cut grass and adjust the 1/4" measurement as
necessary for a smooth, even cut.
6. Arrange the blades so they face front-to-back.
7. On 38" deck, measure the distance from the ground
to front tip of the right blade and from the ground to
the rear tip of the left blade.
On 44" decks, measure the distance from the ground
to the front tip of the center blade, and from the
ground to rear tips of left-hand and right-hand blades.
Front tips on either deck should be 1/4" higher. If not,
proceed with steps 8 - 10.
8. See Figure 17. To raise front of mower deck, loosen
front nut (A) and turn rear nut (B) against bracket (C).
9. To lower front of mower deck, loosen rear nut (B) and
bracket (C) will move backwards to lengthen rod.
10. Re-check measurement before tightening front nut
(A) against bracket.
Figure 16. Leveling The Mower Side-to-Side
A. Outside Nut
Figure 17. Leveling The Mower Front-To-Back
A. Front Nut
B. Rear Nut
4 - 13
4 Adjustments
Mower Adjustment
B. Eccentric Nut
C. Mower Bracket
D. Adjustment Rod