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Owner Service 17
MAN0137 (9/14/01)
OWNER SERVICE Cont’d
Install Blades
Your dealer can supply genuine replacement
blades. Substitute blades may not meet original
equipment specifications and may be dangerous.
IMPORTANT
■ We recommend you install a new Nylok blade
bolt when you replace the blade.
■ Do not substitute any bolt for the special
blade bolt. It is self-locking, meeting the non-loos-
ening requirements for this application.
Refer to Figure 7.
1. Install spindle lock wrench (5) through belt shield
(3) and into holes in spindle pulley as shown Figure 7.
2. Install shoulder washer (2) if removed, small end
up. Make sure blade cutting edge is positioned to lead
in a clockwise rotation, as viewed from top of mower.
3. Install two cup washers (7) on bolt (8). Install
washer (6) and blade (1) on bolt. Remember that bolt
(8) has right hand threads; install bolt and blade
assembly into spindle.
4. Torque bolt to 170 lbs.-ft. Remove spindle lock
wrench from pulley and shield.
Sharpen Blades
IMPORTANT
■ When sharpening blades be sure to balance
them. Unbalanced blades will cause excessive
vibration which can damage blade spindle bear-
ings. Vibration may also cause structural cracks
in mower components.
1. Remove blades.
2. Always sharpen both ends at the same time to
maintain balance. Follow original sharpening pattern.
Do not sharpen blade to a razor edge. Leave from
1/32" to 1/16" blunt edge. Do not sharpen back side.
Figure 8 Blade Sharpening
CAUTION
Follow Original Pattern
Maintain Corner
1-32"
CD3411