Engine - Briggs & Stratton 2691686-00 Manual Del Operario

DANGER
Mowing in reverse can be hazardous to bystanders. Tragic
accidents can occur if the operator is not alert to the
presence of children. Never activate the Reverse Mowing
Option (RMO) if children are present. Children are often
attracted to the machine and the mowing activity.

Engine

Check and Add Engine Oil
®
Use Briggs & Stratton Warranty Certified oils for best
performance. Other high-quality detergent oils are acceptable
if classified for service SF, SG, SH, SJ or higher. Do not use
special additives.
Outdoor temperatures determine the correct oil viscosity for
the engine. Use the chart to select the best viscosity for the
outdoor temperature range expected.
A SAE 30 - Below 40 °F (4 °C) the use of SAE 30 will result in hard
starting.
B 10W-30 - Above 80 °F (27 °C) the use of 10W-30 can cause increased
oil consumption. Check oil level more frequently.
C 5W-30
D Synthetic 5W-30
E Vanguard
®
Synthetic 15W-50
*Below 40°F (4°C) the use of SAE 30 will result in hard starting.
**Above 80°F (27°C) the use of 10W-30 can cause increased oil consumption.
Check oil level more frequently.
1. Put the unit on a level surface as shown in Figure 4.
2. Stop the engine and remove the key.
3. Make sure that the oil fill area is clean.
4. Remove the dipstick (A, Figure 5). Remove the remaining
oil from the dipstick.
5. Install and tighten the dipstick.
6. Remove the dipstick again, and check the oil level. Make
sure that the oil level is at the top of the FULL mark (B) on
the dipstick.
7. If the oil level is FULL, install and tighten the dipstick.
8. If the oil level is LOW, add oil into the engine oil fill tube
(C). Do not overfill.
Note: Do not add oil at the quick oil drain (if equipped).
9. Wait one minute, and check the oil level again.
10. Replace and tighten the dipstick.
Oil Pressure
If the oil pressure is too low, a pressure switch (if equipped)
will either stop the engine or activate a warning device on the
equipment. If this occurs, stop the engine and check the oil
level with the dipstick.
If the oil level is below the ADD mark, add oil until it touches
the FULL mark. Start the engine and check for the correct oil
pressure before you continue to operate the machine.
If the oil level is between the ADD and FULL marks, DO NOT
start the engine. Contact an authorized service dealer to
correct the oil pressure problem.
Fuel Recommendations
Fuel must meet these requirements:
• Clean, fresh, unleaded gasoline.
• A minimum of 87 octane/87 AKI (91 RON). High altitude
use, see below.
• Gasoline with up to 10% ethanol (gasohol) is acceptable.
NOTICE Do not use unapproved gasolines, such as E15
and E85. Do not mix oil in gasoline or modify the engine to
run on alternate fuels. Use of unapproved fuels will damage
the engine components, which will not be covered under
warranty.
To protect the fuel system from gum formation, mix a fuel
stabilizer into the fuel. See Storage. All fuel is not the same.
If start or performance problems occur, change fuel providers
or brands. This engine is certified to operate on gasoline.
The emissions control system for carbureted engines is EM
(Engine Modifications). The emissions control systems for
engines with electronic fuel injection are ECM (Engine Control
Module), MPI (Multi Port Injection), and if equipped an O2S
(Oxygen Sensor).
High Altitude
At altitudes over 5,000 feet (1524 meters), a minimum 85
octane/85 AKI (89 RON) gasoline is acceptable.
For carbureted engines, high altitude adjustment is
required to maintain performance. Operation without this
adjustment will cause decreased performance, increased
fuel consumption, and increased emissions. Contact
a Briggs & Stratton Authorized Service Dealer for high
altitude adjustment information. Operation of the engine at
altitudes below 2,500 feet (762 meters) with the high altitude
adjustment is not recommended.
For Electronic Fuel Injection (EFI) engines, no high altitude
adjustment is necessary.
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