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Section 4 - ADJUSTMENTS & REPAIR
WARNING
DO NOT attempt any adjustments, maintenance or
service with the engine or blade running. STOP
blade. STOP engine. Set brake. Remove key.
Remove spark plug wire from spark plug and secure
wire away from spark plug. Engine and components
can be extremely hot. Avoid burns by allowing
engine and components sufficient time to cool. Wear
heavy leather gloves when handling or working
around cutting blades. Blades are extremely sharp
and can cause severe injury.
4.3 MOWER BLADE REPLACEMENT
4.3.1. BLADE WEAR LIMITS
1. Inspect blade frequently for signs of excessive
wear or damage. See Figure 4.11.
FIGURE 4.11
4.3.2. BLADE SHARPENING
1. Close vent on fuel cap and make sure cap is
tight. Close fuel valve in fuel line. Start engine and
allow it to run until engine runs out of fuel.
2. Remove key from ignition switch.
3. Remove spark plug wire(s) and secure away from
spark plug(s).
4. Carefully stand SCRAMBLER on rear bumper.
5. Remove blade(s). See Figure 4.12.
6. Inspect condition of blade. See Figure 4.11.
7. If blade is in good condition, sharpen at 22 to 28
degrees. DO NOT sharpen beyond existing cutting
edge. See Figure 4.13.
8. Check blade balance after sharpening. If
necessary, correct blade balance by grinding the
heavy end of blade.
9. Reinstall blade. See Figure 4.12. Torque blade
mounting bolts to recommended range of:
42” Deck - 30 to 40 ft. lbs.
48” Deck - 80 to 90 ft. lbs.
FIGURE 4.12
FIGURE 4.13
WARNING
DO NOT use a cutting blade that shows signs of
excessive wear or damage. Wear heavy leather
gloves when handling or working around cutting
blades. Blades are extremely sharp and can cause
severe injury.
4.3.3. BLADE REPLACEMENT
1. Remove blade(s). See Figure 4.12. Replace
blade(s) if it shows signs of excessive wear or
damage.
NOTE: For all cutting blade replacement part
numbers refer to Section: “MAINTENANCE
/REPLACEMENT PARTS”.
DO NOT SHARPEN
BEYOND ORIGINAL
CUTTING EDGE
BLADE TIP
ORIGINAL CUTTING EDGE
22º TO 28º
NEW BLADE
WEAR LIMIT
(NOTCH STARTS)
DANGEROUS CONDITION!
DO NOT USE ON MOWER!
REPLACE WITH NEW BLADE.
48” DECK
42” DECK