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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.
4.3.5. BLADE BRAKE ADJUSTMENT
The SNAPPER SCRAMBLER is equipped with an
electric clutch/brake that should stop blade rotation
in 5 seconds or less after being turned off. If blades
continue to rotate longer than 5 seconds,
adjustment or replacement is required. When
properly adjusted, a .010” to .012” feeler gauge will
fit thru the three inspection slots located on the side
of the clutch as shown. See Figure 4.5. Excessive
clearance can adversely affect the function of the
clutch and produce blade stop times over 5
seconds. To adjust, turn the three adjusting nuts
clockwise to reduce clearance. The clearance at
each of the three slots must be set the same.
FIGURE 4.5
WARNING
Blades must stop rotating in 5 seconds or less after
blades have been turned off. DO NOT operate
machine until blade brake has been adjusted or
repaired and is functioning properly. Contact your
SNAPPER dealer for assistance.
4.3.6. ADJUSTING MOWER BLADE
The straightness of the mower blade(s) is essential
for smooth, even mowing. Adjust blade straightness
as follows.
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. Select a point on the deck and mark for reference.
6. Mark blade tips as “A” and “B”.
7. Rotate blade until blade tip “A” is at deck
reference mark.
8. Measure the distance between deck lip and
blade tip. NOTE: On 33” decks, the measurement
between the blade tip and deck lip should be 3/8”.
See Figure 4.6.
9. Repeat step 8 with blade tip “B”.
10. If measurement between blade tips and deck are
different and there is more than 1/16” difference
between blade tip measurements, adjust blade as
follows:
a. Loosen jam-nuts on the ends of blade bar.
b. Adjust jackscrews “IN” or “OUT” until blade
tip measurements are within 1/16” of each other
and blade tips are 3/8” away from deck lip. See
Figure 4.7.
c. Retighten jam-nuts securely.
FIGURE 4.6
FIGURE 4.7
ADJUSTING
NUT (3)
INSPECTION
SLOT (3)
.010” TO .012”
FEELER GAUGE
BLADE TIP
3/8”
DECK LIP
MARK
BLADE
ENDS
3/8” FROM BLADE
TIP TO OUTER DECK
LIP
JACKSCREWS
JAM NUTS