Figure 75
1. Spindle 3. Anti-scalp plate
2. Sail Area of Blade 4. Blade Bolt
3. T or que the blade bolt to 85-110 ft-lb
(115-150 N ⋅ m).
Correcting Mower Deck
Mismatch
If the cut is unev en across the mo w er sw ath,
cor rect it as follo ws:
1. P osition the mac hine on a lev el surface on the
shop floor .
2. Set the cutting unit to the desired height of cut,
mo v e the throttle lev er to the Slo w position,
stop the engine , set the parking brak e , and
remo v e the ignition k ey .
3. Chec k and adjust front and rear tractor tire
pressure; refer to Chec king Tire Pressure in
Dri v e System Maintenance , pag e 52 .
4. Chec k for bent blades .
5. R emo v e the co v ers from the top of the cutting
units .
6. R otate the blade on eac h spindle until the ends
face forw ard and bac kw ard.
7. Measure from the floor to the front tip of the
cutting edg e .
8. Adjust the jam n uts securing the dec k
y ok es/c hains to the mo w er dec k until the
mo w er dec k is lev el.
Figure 76
1. Chain
3. Jam nut
2. Yoke 4. Mower deck
Adjusting the Mower Deck
Pitch
Cutting unit pitc h is the difference in height-of-cut
from the front of the blade plane to the bac k of
the blade plane . T oro recommends a blade pitc h
of appro ximately 5/16 inc h (8 mm). T hat is the
bac k of the blade plane is 5/16 inc h (8 mm) higher
than the front.
1. P osition the mac hine on a lev el surface on the
shop floor .
2. Set the cutting unit to the desired height-of-cut,
mo v e the throttle lev er to the Slo w position,
stop the engine , set the parking brak e , and
remo v e the ignition k ey .
3. R otate the center blade so that it points straight
forw ard.
4. Using a shor t r uler , measure from the floor to
the front tip of the blade .
5. R otate the same blade tip to the rear and
measure from the floor to the tip of the blade
at the rear of the dec k.
66