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BLADE SERVICING
Inspect blades for condition and proper installa-
tion each time before operation. Replace any
blade that is bent, excessively nicked, worn or
has any other damage. Small.nicks can be
Blade Removal
For right and left spindles, install spindle lock
wrench (5) through belt shield and into holes in
spindle pulley as shown. Remove bolt which has
RIGHT HAND THREADS. Remove cup washers,
washer and blade.
On the center spindle use blade wrench handle.
The handle will rotate against gearbox stand
.when blade bolt is removed.
Shoulder washer will not normally come off unless
intentionally removed.
Blade Installation
Install spindle lock wrench through belt shield
1.
and into holes in spindle pulley as shown.
2. Install shoulder washer (if removed) small end
up. Make sure blade cutting edge is positioned
to lead in clockwise rotation, as viewed from
.
,
top of mower.
3. Excessive blade slipping can cause cup
washers to burn and lose their clamping force,
Inspect cup washers to determine if they are
burned or have lost their clamping force.
Replace as necessary.
Use a new Nylok blade bolt
when you replace the blade. Do not substi-
tute any other bolt for the special blade bolt.
It is self-locking, meeting the non-loosening
requirements for this application.
Install two cup washers on bolt. Install washer
4.
and blade on bolt. Remember bolt has right
hand threads; install bolt and blade assembly
into spindle. Torque bolt to 23.5 kg/m (170 ft,/
Ibs). Remove spindle lock wrench from pulley
and shield.
1. Blade
2. Shoulder washer
Left belt shield
3 .
Spindle lock wrench
4.
5. Spindle lock wrench handle
6.
Standard flat washer
7. Cup washers
8. Blade bolt, special Nylok (right hand threads)
Blade Assembly
MAINTENANCE
39
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