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Section 5 - ADJUSTMENTS & REPAIR
5.5 MOWER BLADE REPAIR/REPLACEMENT
5.5.1. BLADE WEAR LIMITS
1. Inspect blade frequently for signs of
excessive wear or damage. See Figure 5.5.
NEW BLADE
FIGURE 5.5
WARNING
DO NOT use a cutting blade that shows signs of
excessive wear or damage. See Figure 4.5. Wear heavy
leather gloves when handling or working around
cutting blades. Blades are extremely sharp and can
cause severe injury.
5.5.2. BLADE SHARPENING
1. Remove blade. See Figure 5.6.
(4) BLADE
SPACERS
MOUNTING
BOLT
FIGURE 5.6
WEAR LIMIT
(NOTCH STARTS)
DANGEROUS CONDITION!
DO NOT USE ON MOWER!
REPLACE WITH NEW BLADE.
AIR LIFT
BLADE
BEVELED
WASHER
2. Inspect condition of blade.
See Figure 5.5.
3. If blade is in good condition, sharpen at 22 to
28 degrees. DO NOT sharpen beyond existing
cutting edge. See Figure 5.7.
WARNING
Wear heavy leather gloves when handling or working
around cutting blades. Blades are extremely sharp
and can cause severe injury. DO NOT use a cutting
blade that shows signs of excessive wear or
damage.
BLADE
ORIGINAL CUTTING EDGE
4. Check blade balance after sharpening.
necessary, correct blade balance by grinding the
heavy end of blade. IMPORTANT: Blade balancing
should be performed by a qualified dealer.
5. Reinstall blade. See Figure 5.6. Torque blade
mounting bolts to recommended range of 70 to 80
ft. lbs.
5.6 MOWER DRIVE BELT REPLACEMENT
Inspect mower drive belt. Replace belt if it shows
signs of excessive wear, damage and/or is broken.
WARNING
DO NOT attempt any adjustments, maintenance or
service with the engine or blades running. Stop
blades. Stop engine. Set brake. Remove key.
Remove spark plug wires from spark plugs and (gas
only) secure wires away from spark plugs. Engine
and components are HOT. Avoid serious burns by
allowing all parts sufficient time to cool.
5.6.1. ENGINE BELT REMOVAL
1. Remove mower drive belt cover.
2. Remove old belt.
20
22º TO 28º
BLADE TIP
FIGURE 5.7
If
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