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light oil is also recommended. A 4 oz. plastic bottle of
light oil lubricant is available. Order part number
\ 737-0170. Engine oil may also be used.
When replacing the blade, be sure to install the blade
with the side of the blade marked "Bottom" (or with
part number) facing the ground when the mower is in
the operating position.
Blade Mounting Torque
Center Bolt and Blade Adapter Bolts: 375 in. lb.-min.,
450 in. lb. max.
To insure safe operation of your unit, all nuts and bolts
must be checked periodically for correct tightness.
DECK
The underside of the mower deck should be cleaned
after each use to prevent a buildup of grass clippings,
leaves, dirt or other matter. If this debris is allowed to
accumulate, it will invite rust and corrosion, and may
cause an uneven discharge of grass clippings at the
next cutting.
The deck may be cleaned by tilting the mower and
scraping clean with a suitable tool (make certain the
spark plug wire is disconnected).
ENGINE
Refer to the separate engine manual for engine
maintenance instructions.
Maintain engine oil as instructed in the separate
engine manual packed with your unit. Read and follow
instructions carefully.
Service air cleaner every 25 hours under normal con¬
ditions. Clean every few hours under extremely dusty
conditions. Poor engine performance and flooding
usually indicates that the air cleaner should be ser¬
viced. To service the air cleaner, refer to the separate
engine manual packed with your unit.
The spark plug should be cleaned and the gap reset
once a season. Spark plug replacement is recom¬
mended at the start of each mowing season; check
engine manual for correct plug type and gap
specifications.
Clean the engine regularly with a cloth or brush. Keep
the cooling system (blower housing area) clean to per¬
mit proper air circulation which is essential to engine
performance and life. Be certain to remove all grass,
dirt and combustible debris from muffler area.
STORAGE OF THE BATTERY
The battery must be stored with a full charge. A
discharged battery will freeze.
IMPORTANT: All batteries discharge during storage.
Recharge battery every two months and before return¬
ing to service. Refer to charging instructions on page
13.
BELT REMOVAL AND REPLACEMENT
1. Disconnect the spark plug wire and ground it
against the engine.
2. Drain the fuel tank or place a piece of plastic
beneath the cap to prevent gasoline leakage.
3. Remove the grass bag, rear discharge chute
assembly and catcher panel.
4. Remove the transmission belt cover by removing
three bolts. See figure 29.
5. Tip the mower on its side, and block securely.
6
. Remove the center bolt which secures the blade
to the crankshaft. See figure 30. Remove the
blade, blade adapter and pulley half. Remove the
belt.
7. Remove the inside belt guard by removing two self¬
tapping screws. A 3/8" wrench is required. See
figure 30.
17
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