Simplicity 7100 Series Operator's Manual page 43

Adjustments
edge of the idler bracket is in middle of
green zone, the belt adjustment is ac¬
ceptable. If not, readjust the belt as
described in step 13.
NOTE
Check belt adjustment periodically
during mowing season. Drive belt
must be readjusted when rear edge of
idler bracket aligns with rear edge of
green zone or goes into the red zone.
MOWER LEVELING PROCEDURE
This adjustment is normally required only
when installing the mower for the first time
or when reinstalling the mower after repairs
were made to the tractor or mower hitches
which might have affected the level. To level
the mower, place tractor and mower on a
level surface, set the parking brake, then
proceed as follows.
1. Check tractor tire pressures. The front
tires should have 12 to 15 psi and the
rear tires should have 6 to 8 psi.
2. Turn both mower height adjustment
handles (A, figure 39) fully clockwise to
the highest cutting height position.
WARNING
For your personal safety, do not han¬
dle the sharp mower blades with bare
hands. Careless or improper handling
of blades may result in serious injury.
3. Rotate the mower blades so the tips
point straight forward and backward as
shown in figure 39.
4. Measure and note the distance from the
front tip of the center blade to the
ground.
5. Measure the distances from the rear tips
of the two side blades to the ground.
The side blade measurements should be
the same, and the rear measurement
should be 1/8 to 1/4 inch (3 to 6 mm)
less than the measurement for the cen¬
ter blade front tip made in step 4.
NOTE
If the measurements taken are satis¬
factory, the mower is level and needs
no adjustment. If the measurements
are incorrect, the mower bail assem¬
bly eyebolts (42" mower) or yokes (48"
B. Jam Nut F. Height of
C. Yoke or Eyebolt Center Blade
D. Height of Side Blades q. Front Blade
E. Side Blades
Figure 39. Level Mower
mower) must be adjusted according to
step 6. Both eyebolts or yokes must be
adjusted to level the mower front to
back. If only slight side-to-side level¬
ing of the two side blades is required,
the eyebolt or yoke of only one side
need be adjusted.
WARNING
To avoid possible injury when per¬
forming step 6, block up tbe front of
tbe mower before removing the eye-
bolts or yokes so tbe mower will not
drop down.
41