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ENGINE MAINTENANCE
Change Oil & Filter
Check/Replace Spark Plugs
Check/Replace Fuel Filter
*More often in hot (over 85°F, 30°C) weather or dusty operating
conditions.
**If equipped, replace if damaged.
Maintenance Procedures
Service and Maintenance Safety
WARNING
Amputation and crushing hazard
Specific steps must be taken in order to perform service and
maintenance procedures safely.
Read and follow all the applicable safety and instructional
messages in this manual.
Always disengage the mower blades, set the parking brake,
turn the engine OFF, remove the ignition key, and wait
for all movement to stop prior to performing service and
maintenance procedures.
Always disconnect the spark plug wire(s) and fasten it away
from the plug before beginning any maintenance or service
procedures on order to prevent accidental ignition.
Checking / Adding Fuel
WARNING
Fuel is highly flammable and must be handled with care.
Allow the engine to cool for at least three (3) minutes before
refueling. Do not allow open flame, smoking or matches in
the area. Avoid over-filling and wipe up any spills.
To add fuel:
1. Remove the fuel cap (A, Figure 26).
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2. Fill the fuel tank to the bottom of the filler neck. This will
allow for fuel expansion.
Note: Do not overfill. Refer to your engine operator's
manual for specific fuel recommendations.
3. Install and hand tighten the fuel cap.
4. If your unit is equipped with two fuel tanks, repeat this
process to fill the other fuel tank.
NOTICE
Refer to your engine operator's manual for specific fuel
recommendations.
Replacing the Fuel Filter
WARNING
Fuel and its vapors are extremely flammable and
explosive.
Fire or explosion can cause severe burns or death.
Do NOT remove the fuel filter when the engine is hot, as
spilled gasoline may ignite. Do NOT spread hose clamps
further than necessary. Ensure clamps grip hoses firmly
over filter after installation.
Carbureated Models: The fuel filter is located in the fuel line
between fuel tank and carburetor, near the fuel pump.
Fuel Injected Models: The fuel filter is located in the fuel line
between the fuel tank and fuel pump.
If filter is dirty or clogged, replace as follows:
1. Disconnect the negative battery cable.
2. Place a container below the filter to catch spilled fuel.
3. Using a pliers, open and slide hose clamps from fuel filter.
4. Remove hoses from filter.
5. Install new filter in proper flow direction in fuel line.
6. Secure with hose clamps.
7. Reconnect the negative battery cable when finished.
Check Engine Oil Level
Interval: Before Each Use
Refer to the engine operator's manual for dipstick and oil fill
locations and specific engine oil check and fill procedures.
Briggs & Stratton Vanguard Engines
with Remote Oil Tank (Select Models)
Some models in this series of mower feature a remote oil tank
(A, Figure 27) that supplies oil to the engine. Units equipped
with a Vanguard engine with remote oil tank are factory filled
with specially formulated Vanguard 15W-50 synthetic oil.
Note:This specific grade of oil is not required to keep engine
warranty in effect.
For more information regarding this engine and other
operational and maintenance information, please refer to the
engine operator's manual included with your unit.
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