HUSTLER Super 104 Operator's Manual page 40

After grinding the blades, check for balance. Blade
balancing can be done by placing the blade on an inverted
line punch or 5/8" bolt. A commercial balancing tool is also
available through most hardware supply stores.
The blade should not lean or tilt. When spinning the blade
slowly it should not wobble. Balance the blade before
reinstalling.
Lay the blade on a flat surface and check for distortion.
Replace any distorted blade. Figure 4-16 & Figure 4-17
Do not sharpen to original pattern (below). It
is easier to get a straight cutting edge follow-
ing the re-sharpening pattern shown above.
A. Re-sharpening pattern
B. Original edge
Figure 4-15
Comparison of Warped and Straight Blades
B
A. Warped blade — replace
B. Straight blade
C. Cutting plane
Figure 4-16
REV B
A
B
A
C
End view of blades, comparing twisted and straightened
blades.
D
C
D
A. Twisted blade edge —
replace blade
B. Straight blade edge
Mower Blade Replacement
IMPORTANT: Refer to the Safety section of this manual for
blade handling safety information.
Mower blades are sharp and can cut. Wrap the
blade(s) or wear gloves and use extra caution
when servicing them.
A 15/16" wrench is required to remove the 5/8" cap screw
holding the blade to the spindle shaft. NOTE: A blade holding
tool (P/N 381442) is available from Hustler
It is designed to prevent the blades from rotating when they
are being removed or installed on the spindle. Contact your
Hustler Dealer for more information.
®
Do not re-use spindle bolts which have stripped, worn or
undercut threads. Torque bolts on spindles to 118 ft-lbs
(160.0 N•m) when reinstalling blades.
Failure to correctly torque the bolt may result in
the loss of the blade which can cause serious
injury.
Properly compressed cup washers maintain the correct
compression load on the blades. Replace the cup washers if
they are cracked or flattened.
IMPORTANT: The blade sail (curved part) must be point-
ing upward toward the inside of the deck to ensure proper
cutting.
4-8
A
B
C. Cutting plane
D. Cutting edge
Figure 4-17
Turf Equipment.
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