Service manual

27
key from the ignition switch, disconnect the spark
plug wires and lower the mowing deck into the 4"
height of cut position. (The 4" height of cut position
is recommended in order for one to see and obtain
a measurement. Any height of cut position is
acceptable as long as a proper measurement can
be taken.)
2. Check the right and left front tire pressure. Adjust
as necessary to 20-25 psi. Tire pressure can
affect blade height by as much as a 1/4”.
3. Check the right and left rear Drive tire pressure.
Adjust as necessary to 10-12 psi.
4. Measure blade-to-ground height at the front tip of
the right blade. To obtain an accurate measure,
align blades in parallel with mower centerline, (i.e.
front to back).
5. Measure blade-to-ground height at the front tip of
the left blade. Be sure to measure at the blade tip
with the blades arranged in proper position.
6. To level the deck, adjust the eyebolt at the left front
of the deck (Point B) so that the blade-to-ground
height at the right front blade tip matches that of
the left front blade tip. This is done by loosening
the jam nuts on the eyebolt and tightening the
upper nut to raise the deck and loosening the nut
to lower the deck. The right front blade tip height is
fixed so you must adjust the left front tip to match
it.
7. Measure the blade-to-ground height at the right
rear blade tip. Again be sure to measure at the
blade tip at the rear of the right blade when aligned
along the mower centerline. The blade-to-ground
height at the rear of the blade tip should be 1/8" to
1/4” higher than the front tip. This is referred to as
blade pitch. The same height difference should be
true for the left blade, measured front and back.
The pitch should not exceed 1/16” if cut height is
below 1-1/2”.
8. To adjust the blade pitch the deck pitch must be
adjusted. Loosen the inner jam nuts at the rear of
the horizontal threaded rods. Start at Point C to
raise the rear of the deck, tighten the rear outer
jam nut to raise the deck pitch. Adjust the rear jam
nut at Point D to take the “slack out of the threaded
rod.
9. The final adjustment would be to take the “slack”
out of the left rear linkage (Point D) by adjusting
the jam nuts on the eyebolt. Loosen the jam nuts
and tighten the upper nut to remove “slack”.
10. In many cases it will be necessary to adjust deck
height using both eyebolt adjustments and pitch
adjustment to achieve the correct blade-to-ground
heights. If you remember that the front right blade
tip adjustment is fixed and you level to that height,
adjusting the decks will be simplified.
11. Once the deck is level one may find that the height
of cut does not match the height of cut indicator. A
final adjustment may be made by lowering or rais
-
ing the height of cut link accordingly. To raise the
deck: remove the shoulder bolt mounting the
height of cut link to the lift handle and reassemble
the shoulder bolt in the lowest of the three holes.
To lower the deck: remove the shoulder bolts
mounting the height of cut link, flip the height of cut
link around and reassemble the shoulder bolts in
the top of the set of three holes and the bottom
hole. (see Fig. 13)
Eyebolt
Point D
Point C
Jam Nuts
Point B
Eyebolt
Height of Cut LInk
Point A
Figure. 13
F.Adjustable Front Skirt
1. Please refer to the reconfigurable mower chart
on page 29.
G.Removable Flow Control Baffles
1. Please refer to the reconfigurable mower chart
on page 29.