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Adjusting The Mower Deck To Adjust
Mower Blade Height And Pitch
(Figure 14)
NOTE: Adjusting the mower deck will adjust
the height and pitch of the mower blades.
1. Adjust the trunnions first and re-take the
three measurements required to level
and adjust the pitch of the mower deck.
These measurements are:
a. The distance from the mower
blades to the ground.
b. The forward pitch of the mower
blades.
c. The pitch of the mower blades
from side to side.
Adjust Trunnions:
1. Using an adjustable or open ended
wrench tighten or loosen the lock nut on
top.
NOTE: To avoid over-adjustment note which
nuts have been adjusted and the amount
each has been loosened or tightened.
2. Using the same tool, tighten the bottom
hex nut to raise the deck OR loosen the
bottom hex nut to lower the deck.
3. Tighten the lock nut on top to secure the
link in the desired location.
4. Repeat step 1 as needed until all three
measurements (a, b, and c) are within
the tolerances specified.
REPLACING MOWER BLADE
Remove
(Figure 15)
1. Block mower blades to prevent rotation.
2. Remove mounting hardware and mower
blades from spindles.
Install
(Figure 15)
1. Install mower blades on spindles with
mounting hardware.
2. Torque 5/8" nut to 100 to 120 lbf-ft (136
to 163 N•m).
SHARPENING MOWER BLADE
Figure 14
1. Trunnion
2. Mower Deck
3. Lock Nut
4. Hex Nut
1
2
3
4
CAUTION: Mower blades are
sharp and can cut you. Wrap the
blades or wear gloves, and use
extra caution when servicing
them.
CAUTION: DO NOT sharpen
mower blade while on unit. An
unbalanced mower blade will
cause excessive vibration and
eventual damage to unit. Check
mower blade balance prior to
reinstalling mower blades.
NEVER weld or straighten mower
blades.
Figure 15
1. Spindle
2. Blade
3. Washer
4. 5/8" Nut
1
2
3
4