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Section 3 - MAINTENANCE
3.3 SERVICE EVERY 25 OPERATING HOURS
3.3.1. ENGINE
5. Air Filter
c. Reinstall air cleaner cover. Insert tabs located
on the engine cover into corresponding slots in air
cleaner cover. IMPORTANT: The yellow tabs must
be completely inserted into air cleaner cover or the
compartment will not be completely sealed to
prevent debris from entering into the carburetor.
a. 18 HP Engines: Change air filter. Pull up and
rotate the air cleaner latch to remove cleaner cover.
See Figure 3.4.
IMPORTANT: When cover is removed, you are
viewing the carburetor side of the air filter, which
will appear clean. Remove filter and pre-cleaner for
inspection.
FIGURE 3.4
b. Refer to engine owner's manual for cleaning and
service instructions. Remove and clean engine air
pre-cleaner. Remove and replace engine air
cleaner. See Figure 3.5. Install pre-cleaner and air
cleaner per engine owner’s manual.
FIGURE 3.5
c. Reinstall air cleaner cover. Insert tabs located at
the bottom of the cover into corresponding slots in
engine cover. Position cover and engage latch over
cover and rotate and push down to lock.
3.3.2. MOWER COMPONENTS
1. Mower Drive Belt
Check belt for proper tension. No adjustment
required. Replace belt as needed.
2. Mower Blade
Check blade for sharpness, wear, damage, and
torque. See the section on Mower Blade
Replacement/Repair.
3. Mower Deck Levelness
Check mower deck for proper levelness. Adjust as
required. See section on Mower Deck Adjustment -
Levelness.
WARNING
Lifting or letting down the machine unassisted can
cause severe injury. Always have assistance from
another person when supporting the weight of
machine.
4. Cleaning Mower Deck
a. 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.
b. Remove key from ignition switch.
c. Remove spark plug wire(s) and secure away
from spark plug(s).
d. Carefully stand SCRAMBLER on rear
bumper.
e. Clean underside of mower deck, removing all
accumulation of grass clippings and debris.
f. Lower SCRAMBLER to ground. Clean top of
deck, removing all grass clippings and debris.
5. Mower Blade Spindle - Lubrication
a. Lubricate spindle bearings with three shots of
general purpose grease from grease gun. See
Figure 3.6.
FIGURE 3.6
LUBRICATE
SPINDLE
BEARINGS
TOP VIEW OF 48” DECK
AIR CLEANER
COVER
AIR CLEANER
LATCH
AIR CLEANER
AIR PRE-
CLEANER