22
Section 4 - ADJUSTMENTS & REPAIR
WARNING
DO NOT attempt any adjustments, maintenance,
service or repairs with the engine running. Stop
engine. Stop blade. Engage parking brake. Remove
key. Remove spark plug wire from spark plug and
secure away from plug. Engine and components are
HOT. Avoid serious burns, allow all parts to cool
before working on machine. Fuel Filler Cap and Vent
must be closed securely to prevent fuel spillage.
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.
4.3.10. WHEEL BRAKE ADJUSTMENT
Adjust the wheel brake if wheels turn when parking
brake is engaged. Adjust the wheel brake by turning
wheel brake adjusting nut clockwise to increase
braking action or counter clockwise to decrease
braking action. See Figure 4.14.
FIGURE 4.14
4.4 MOWER BLADE REPLACEMENT
4.4.1. BLADE WEAR LIMITS
1.
Inspect blade frequently for signs of excessive
wear or damage. See Figure 4.15.
FIGURE 4.15
4.4.2. BLADE
SHARPENING
1.
Close vent in fuel cap and make sure cap is
tight. See Figure 2.3.
2.
Remove key from ignition switch. Engage parking
brake.
3.
Remove spark plug wire(s) and secure away from
spark plug(s).
4.
Raise cutting deck to highest setting. With a floor
jack, raise up front of machine to gain easier access
to under deck. Block machine securely.
5.
Remove blade(s). See Figure 4.16.
6.
Inspect condition of blade. See Figure 4.14.
7.
If blade is in good condition, sharpen at 22 to 28
degrees. DO NOT sharpen beyond existing cutting
edge. See Figure 4.17.
8.
Check blade balance after sharpening. If
necessary, correct blade balance by grinding the
heavy end of blade.
9.
Reinstall blade. See Figure 4.16. Torque blade
mounting bolts to recommended range of:
33” Deck - 30 to 40 ft. lbs.
38” Deck - 80 to 90 ft. lbs.
FIGURE 4.16
FIGURE 4.17
UNDERSIDE VIEW OF MACHINE
ADJUST
COUNTER-
CLOCKWISE TO
DECREASE
BRAKE
ADJUST
CLOCKWISE
TO INCREASE
BRAKE
WHEEL BRAKE
ROD
ELECTRIC
CLUTCH
NEW BLADE
WEAR LIMIT
(NOTCH STARTS)
DANGEROUS CONDITION!
DO NOT USE ON MOWER!
REPLACE WITH NEW BLADE.
33” DECK
38” DECK
DO NOT SHARPEN
BEYOND ORIGINAL
CUTTING EDGE
BLADE TIP
ORIGINAL CUTTING EDGE
22º TO 28º
Summary of Contents for SCRAMBLER YZ18336BVE
Page 29: ...29 PRIMARY MAINTENANCE...
Page 30: ...30 PRIMARY MAINTENANCE...
Page 31: ...31 PRIMARY MAINTENANCE...
Page 32: ...32 PRIMARY MAINTENANCE...
