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Service Electrical - 35
SERVICE ELECTRICAL
Servicing Mower Blades
Removing Mower Blades
1. Park machine safely. (See Parking Safely in SAFETY section.)
2. Raise mower deck to gain access to mower blades. If necessary,
remove mower deck.
3. Block mower blade with a piece of wood to prevent it from spinning.
MX16569
4. Loosen and remove nut (A), washer (B), and blade (C).
5. Inspect blades; sharpen, balance or replace blades as necessary.
Installing Mower Blades
1. Position mower blade (C) with the cutting edge towards the ground.
2. Align the splined center hole in the blade with the splined spindle shaft
(D) and put the blade onto the mower spindle shaft.
3. Install washer, with cupped side towards blade, and install nut to secure
blade onto splined spindle shaft.
4. Block mower blade with a piece of wood to prevent spinning and tighten
nut:
• Using 15/16 in. socket, tighten 5/8 in. blade nut to 88 N•m (65 lb-ft).
Sharpening Blades
• Sharpen blades with grinder, hand file, or electric blade sharpener.
MIF
• Keep original bevel (A) when grinding.
• Blade should have 0.40 mm (1/64 in.) cutting edge (B) or less.
• Balance blades before installing.
Balancing 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.
Service Electrical
WARNING: Battery posts, terminals and related accessories contain lead
and lead components, chemicals known to the State of California to cause
cancer and reproductive harm. Wash hands after handling.
c CAUTION: Avoid injury! Rotating blades are dangerous.
Before adjusting or servicing mower:
• Disconnect spark plug wire(s) or battery negative (-) cable to
prevent engine from starting accidentally.
• Always wear gloves when handling mower blades or working
near blades.
c CAUTION: Avoid injury! Blades are sharp. Always wear
gloves when handling blades or working near blades.
Always wear safety eye protection when grinding.
C
B
D
A
c CAUTION: Avoid injury! Blades are sharp. Always wear
gloves when handling blades or working near blades.
A
B