Maintenance - Simplicity 7800353 Operator's Manual

Maintenance

General Recommendations
1. The owner's responsibility is to maintain this
product. This will extend the life of the product
and is also necessary to maintain warranty
coverage.
2. Check the spark plug, drive brake, lubricate the
unit, and clean the air filter once a year.
3. Check the fasteners. Make sure all fasteners are
tight.
4. Follow the Maintenance section to keep the unit in
good operating condition.
WARNING
Before you make an inspection, adjustment, or
repair to the unit, disconnect the wire to the spark
plug. Remove the wire from the spark plug to
prevent the engine from starting by accident.
NOTE: Torque is measured in foot pounds (metric Nm).
This measurement describes how tight a nut or bolt
must be.The torque is measured with a torque wrench.
Engine Power Rating
The gross power rating for individual gas engine mod-
els is labeled in accordance with SAE (Society of Auto-
motive Engineers) code J1940 (Small Engine Power &
Torque Rating Procedure), and rating performance has
been obtained and corrected in accordance with SAE
J1995 (Revision 2002-05). Torque values are derived at
3060 RPM; horsepower values are derived at 3600
RPM. Actual gross engine power will be lower and is af-
fected by, among other things, ambient operating con-
ditions and engine-to-engine variability. Given both the
wide array of products on which engines are placed
and the variety of environmental issues applicable to
operating the equipment, the gas engine will not de-
velop the rated gross power when used in a given piece
of power equipment (actual "on-site" or net power). This
difference is due to a variety of factors including, but
not limited to, accessories (air cleaner, exhaust, charg-
ing, cooling, carburetor, fuel pump, etc.), application
limitations, ambient operating conditions (temperature,
humidity, altitude), and engine-to-engine variability. Due
to manufacturing and capacity limitations, Briggs &
Stratton may substitute an engine of higher rated power
for this Series engine.
Inspect the Blade
WARNING
Before you inspect or remove the blade, disconnect
the wire to the spark plug. If the blade hits an
object, stop the engine. Check the unit for damage.
The blade has sharp edges. When you hold the
blade, use gloves or cloth material to protect your
hands.
If you keep the blade sharp and inspect the blade for
damage, the blade will cut better and be more safe to
operate.
• Frequently check the blade (1) for excessive wear,
cracks, or other damage (see F F igure 21).
• Frequently check the nuts (2) that hold the blade.
Keep the nuts tight.
• If the blade hits an object, stop the engine. Dis-
connect the wire to the spark plug. See if the blade
is bent or damaged.
Before you operate the unit, replace damaged parts
with original equipment parts. See the authorized serv-
ice center in your area. Every three years, have an au-
thorized service person inspect the blade or replace
the old blade with an original equipment part.
2
3
5
4
en
2
3
1
4
Figure 21
23