21
CLEAN DECK AND
CHECK/REPLACE MOWER BLADES
Service Interval: 25 hours or as required.
1. Remove mower deck (see “MOWER DECK
REMOVAL AND INSTALLATION” in the Operation
section).
2. See Figure 20. Remove blade to inspect it or to safely
access the underside of the mower deck. Use a block
of wood to prevent blade rotation while loosening the
hardware by turning it counterclockwise.
3. Remove the hardware and blade.
4. Clean the underside of the mower deck.
5. Inspect the blade(s) for nicks or dull edges. Use a file
to sharpen blade to a fine edge. If the blade is
damaged, it must be replaced.
6. Balance the blade as shown in Figure 21. Center the
blade’s hole on a nail lubricated with a drop of oil. A
balanced blade will remain level. If the blade is not
balanced, continue to sharpen the heavy side until it
balances.
7. Reinstall the blade with the lift wings (D, Figure 22)
pointing up toward the mower deck as shown.
8. Reinstall the hardware as noted in Figure 22. Use a
wooden block to prevent blade rotation while
tightening the hardware to the following torque:
42" Blade – 80-90 ft. lbs. (108-122 Nm)
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
hardware must each be installed as per
instructions. Torque blade mounting hardware to
torque noted in instructions.
Figure 21. Balancing the Blade
Workbench
Nail
Figure 20. Blade Removal – 42" Deck
Figure 22. Blade Installation – 42" Deck
A. 4x4 Wood Block C. Blade Nut
B. Spring Washers D. Lift Wings
A
B
C
D
LOOSEN
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