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Regular Maintenance
Servicing the Mower Blabes
SERVICE INTERVAL: EVERY 100 HOURS OR AS
REQUIRED
NOTE: Mower blades must be timed perpendicular to
each other.
1. Remove mower deck (see “Mower Deck Removal”).
2. See Figure 27. To remove blade for sharpening, use
a block of wood to prevent blade rotation while loos-
ening the capscrew.
3. 44”, & 50” Mowers: Remove the capscrew (D,
Figure 29), spring washer (C), hex washer (B), and
blade.
54” Mowers: Remove the capscrew (D, Figure 30),
spring washer (C), spline washer (B), and blade.
4. Use a file to sharpen blade to a fine edge. If blade is
damaged, it must be replaced.
5. Balance the blade as shown in Figure 28. Center the
blade’s hole on a nail lubricated with a drop of oil. A
balanced blade will remain level.
6. Reinstall the blade (Figures 29-30) with the tabs
pointing up toward the mower deck as shown.
Reinstall the alignment pin (E).
7. 44”, & 50” Mowers: Reinstall the hex washer (B,
Figure 29), spring washer (C) and capscrew (D). Use
a wooden block (A) to prevent blade rotation while
tightening the capscrew (D) to 61-75 N.m (45-55 ft.
lbs.).
54” Mowers: Reinstall the spline washer (B, Figure
30), spring washer (C) and capscrew (D). Use a
wooden block (A) to prevent blade rotation while
tightening the capscrew (D) to 61-75 N.m (45-55 ft.
lbs.).
WARNING
For your personal safety, do not handle the sharp
mower blades with bare hands. Careless or
improper handling of blades may result in serious
injury.
WARNING
For your personal safety, blade mounting
capscrews must each be installed with a
hex/spline washer and spring washer, then
securely tightened. Torque blade mounting
capscrew to 45 - 55 ft. lbs. (61 - 75 N.m.)
Figure 28. Balancing The Blade
Workbench
Nail
LOOSEN
Figure 27. Blade Removal
A
D
C
B
Figure 29. Blade Installation - 44”, 50” Mowers
A. 4x4 Wood Block
B. Hex Washer
C. Spring Washer
D. Blade Bolt