Simplicity AGCO Allis 500 Series, Service And Repair Manual

Page: 28 / 201

3 Maintenance
Engine Maintenance
3 - 4
Replacing the Fuel Filter
The fuel filter (C, Figure 1) is located in fuel line between
fuel tank and carburetor. If filter is dirty or clogged,
replace as follows. Place a container below filter to catch
spilled gasoline.
1. Using a pliers, open and slide hose clamps from fuel
filter.
2. Remove hoses from filter.
3. Install new filter in proper flow direction in fuel line.
Secure with hose clamps. See warning at beginning
of procedure.
Engine Oil & Filter
Refer to engine manual for specific oil and filter recom-
mendations and oil draining procedures.
Engine oil level must be checked at regular intervals to
ensure that engine oil is maintained at a level that will
provide for adequate lubrication of internal components.
The engine oil filter should be changed in accordance
with the engine manufacturer’s recommendations, which
is generally every 50 hours of operation, or more fre-
quently when operating conditions are hot (over 85°), or
dusty.
The oil filter removes abrasive particles and other conta-
minants from the oil, keeping it clean for maximum lubri-
cation efficiency, and should only be replaced with the
type of filter recommended by the engine manufacturer.
Figure 1. Typical Engine Compartment
A. Oil Fill
D. Air Filter
B. Gas Tank E. Spark Plug
C. Fuel Filter
B
A
D
E
C
Checking and Adding Gasoline
Raise the hood and check the fuel tank to be sure there
is enough gasoline to complete the job. To add gasoline,
remove the gas cap. Do not overfill. Leave room in the
tank for fuel expansion. Refer to your engine manual for
gasoline recommendations. Install and hand tighten the
gas cap.
CAUTION
Never use gasoline containing METHANOL, gaso-
hol containing more than 10% ethanol, gasoline
additives, premium gasoline, or white gas because
engine/fuel system damage could result.
WARNING
Do not remove fuel filter when 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.
Check / Change Air Filter
Refer to the engine manual for specific air filter service
intervals and procedures. Refer to Figure 1 for air filter
location.
The engine air filter filters out dust and dirt from the air
intake of the engine, and must be cleaned or replaced
every 25 hours of operation, or more frequently when
operating conditions are dusty.
Replace Spark Plug
Refer to the engine manual for specific spark plug ser-
vice intervals and replacement procedures. Dirty, worn,
or fouled spark plugs may cause hard starting, rough
engine operation, or loss of power. Refer to Figure 1 for
spark plug location.
To remove the spark plug(s) from the engine for inspec-
tion or replacement:
1. Turn the ignition off and remove the key. Allow
engine to cool.
2. Raise the hood and locate the spark plug cable and
boot. Pull the boot off the spark plug.
3. Using a spark plug socket and socket wrench,
remove the spark plug from the engine by turning the
spark plug counter-clockwise.
4. Inspect, clean, re-gap, or replace the spark plug as
required.
5. Reinstall the spark plug. Thread the plug into the
cylinder head by hand, then tighten as instructed by
the engine manufacturer’s manual.