GB - 20
6. Install front trunnion (item 7) and front lift
link (item 5) on mower deck (item 1) and
mower lift (item 2) (figure 14).
7. Check mower deck pitch.
• If mower deck pitch is not correct, repeat
steps 2 through 6.
• If mower deck pitch is correct, the
adjustment is complete.
MOWER BLADE REPLACEMENT
Remove (Figure 17)
1. Block mower blades (item 4) to prevent
rotation.
2. Remove mounting hardware and mower
blades (item 4) from mower deck.
Install (Figure 17)
1. Install mower blades (item 4) on mower
deck with mounting hardware.
2. Torque 5/8” hex bolt (item 3) to 80 to
120 lbf-ft (108 to 163 N•m).
SHARPENING MOWER BLADE
1. Remove mower blade from unit (see
Mower Blade Replacement
on page 20).
Ariens recommends having mower blades
sharpened by a professional. Contact your
Ariens dealer.
Discard mower blade if (figure 18):
• more than 1/2 in. (1.27 cm) of metal is
removed.
• the air lift erosion area (item 1) is eroded.
• the mower blade is bent or broken.
Do not change angle of cutting edge (item 2)
or round the corner at the end of mower blade.
2. Sharpen mower blade by removing an
equal amount of material from each end
of mower blade.
3. Check mower blade balance by sliding
mower blade on an unthreaded bolt. If
blade is balanced, it should remain in a
horizontal position. If either end of mower
blade moves downward, sharpen the
heavy end until mower blade is balanced
(figure 19).
4. Install mower blade on unit (see
Mower
Blade Replacement
on page 20).
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.
1
2
1. Flat Washer
2. Bevel Washer
3. 5/8” Hex Bolt
4. Mower Blade
3
4
Figure 17
OE0039
1. Air Lift Erosion
Area
2. Cutting Edge
Figure 18
OE0052
2
1
DO NOT Sharpen to this Pattern
Sharpen to this Pattern
DISCARD if
more than
1/2 in.
(1.27 cm)
