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Service Mower - 20
SERVICE MOWER
Checking for Bent Mower Blades
1. Park machine safely. (See Parking Safely in the Safety
section.)
2. Lower mower deck to mowing position.
MIF
3. Measure distance (A) between blade tip and flat ground
surface.
4. Turn blade 180°. Measure distance between the other
blade tip and flat ground surface.
5. Install a new blade if the difference between the two
measurements is more than 3 mm (1/8 in.).
Servicing Mower Blades
Removing and Installing Mower Blades
1. Park machine safely. (See Parking Safely in the Safety
section.)
MX9231
2. Remove nut (A), blade (B), blade washers (C), and bolt
(D).
3. Install blade (B), blade washers (C), bolt (D) and secure
using nut (A). Tighten nut to 80 N•m (60 lb-ft).
Balancing Mower Blades
1. Clean blade.
M61524
2. Put blade on nail in a vise. Turn blade to horizontal
position.
3. Check balance. If blade is not balanced, heavy end of
blade will drop.
4. Grind bevel of heavy end. Do not change blade bevel.
Sharpening Blades
• Sharpen blades with grinder, hand file, or electric blade
sharpener.
c CAUTION: Avoid injury! Mower blades are
sharp. Always wear gloves when handling
mower blades or working near blades.
c CAUTION: Avoid injury! Mower blades are
sharp. Always wear gloves when handling
mower blades or working near blades.
A
c CAUTION: Avoid injury! Always wear safety
eye protection when grinding.
A
D
B
C