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15
MAINTENANCE
1. Engine oil level: Check daily with engine cold
and on a flat surface. Remove the dipstick and
wipe clean. Reinsert the dipstick all the way,
but do not screw down. Remove the dipstick
and check oil level. If oil level is low add oil. Use
engine manufacturers specs for type of oil.
2. Mower blades: Stop engine and remove key.
Inspect blades and sharpen or replace as
needed. Check daily or more often if needed.
The machine requires more power with dull
blades and gives a poor cut. If blades get bent,
replace them. Blades shouldn’t have any
notches from hitting objects. The air foil on top
of the blade should be sufficient to raise the
grass for cutting. If blades are in good condi-
tion, sharpen at an angle of 22 to 28 degrees
about 2-1/2 inches in from the tips.
Blade Removal
NOTE: Protect your hands with gloves and/or wrap
blade with heavy cloth.
• Remove blade bolt by turning
counterclockwise.
• Install new or re-sharpened blade.
• Install and tighten blade bolt securely (90
ft./lbs. torque).
Care should be taken to keep the blade bal-
anced. An unbalanced blade will cause exces-
sive vibration and eventual damage to mower
and engine.
WARNING
When it is necessary to raise the
mower for any repair or service, use
jackstands to provide adequate sup-
port. DO NOT rely on hydraulic or me-
chanical jacks
• The blade can be sharpened with a file or
on a grinding wheel. Do not attempt to
sharpen while on the mower.
• To check blade balance, you will need a 5/
8" diameter steel bolt, pin, or a cone
balancer. (When using a cone balancer,
follow the instructions supplied with
balancer.)
NOTE: Do not use a nail for balancing the blade.
• Slide blade on to an un-threaded portion of
the steel bolt or pin and hold the bolt or pin
parallel with the ground. If the blade is
balanced, it should remain in a horizontal
position. If either end of the blade moves
downward, sharpen the heavy end until the
blade is balanced.
CENTER HOLE
5/8" BOLT
OR PIN
BLADE
To Sharpen Blade
FIGURE 13
3.
Safety interlock system: Check daily and never
operate the mower if this system is not func-
tioning properly.
4. Hardware: Stop engine and remove key thor-
oughly inspect the entire machine for any miss-
ing or loose hardware. Check daily.
5. Air cleaner: Stop engine and remove key. Re-
move plastic cover and loosen wingnut on the
air cleaner. Remove the foam pre-cleaner and
wash or replace if needed. Inspect paper filter
and replace if dirty. Check every 25 hours, daily
if in very dirty conditions. Fuel efficiency, en-
gine RPM, and available power goes down rap-
idly if the air filter is dirty. Prolonged effects
could damage the engine.