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16 Owner Service
5WPMAN0242 (Rev. 7/21/2008)
BLADE
Before dismounting power unit or performing
any service or maintenance, follow these steps:
disengage power to equipment, lower the 3-point
hitch and all raised components to the ground,
operate valve levers to release any hydraulic pres-
sure, set parking brake, stop engine, remove key,
and unfasten seat belt.
Keep all persons away from operator control
area while performing adjustments, service, or
maintenance.
Inspect blades for condition and proper installation
each time before operation. Replace any blade that is
bent, excessively nicked, worn or has any other dam-
age. Small nicks can be ground out when sharpening.
Blade Removal
Your dealer can supply genuine replacement
blades. Substitute blades may not meet original
equipment specifications and may be dangerous.
1. Remove belt shields.
2. Install blade spindle wrench (1) onto spindle pulley
as shown.
3. Remove cap screw (7) which has RIGHT HAND
THREADS, cup washers (6), washer (5), and blade
(4).
4. Shoulder washer (3) will not normally come off
unless intentionally removed.
Blade Installation
NOTICE
■ 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-loosening
requirements for this application.
1. Install spindle lock wrench (1) onto spindle pulley
as shown.
2. Install shoulder washer (3) (if removed), small end
up. Make sure blade cutting edge is positioned to
lead in clockwise rotation, as viewed from top of
mower.
NOTE:
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 neces-
sary.
Figure 12. Blade Assembly
3. Install two cup washers (6), washer (5) and blade
(4) on cap screw.
4. Install cap screw and blade assembly into spindle.
Torque cap screw to 170 lbs-ft.
5. Remove blade wrench from pulley.
6. Replace belt shields.
CAUTION
1. Wrench, Blade spindle
2. Pulley
3. Washer, Shoulder .63 x 3.00 x .44
4. Blade
5. Washer, Flat 5/8 standard
6. Washer, Cup .63 x 1.75 x 14 Ga
7. Screw, HHCS Nylok 5/8 NC x 2 GR5