8-2. AIR FILTER
To Clean Air Filter:
1. Remove cover (A) by depressing clip on top of cover
and lift filter (B) from air box (Fig. 8-2A & Fig. 8-2B).
2. Wash filter in soap and water.
DO NOT USE GASO-
LINE!
3. Air dry filter and cover.
4. Reinstall filter.
NOTE:
Replace filter if frayed, torn, damaged or unable to
be cleaned.
8-3. FUEL CAP / FUEL FILTER
NOTE:
Keep vent (A) on fuel cap clean of debris (Fig. 8-
3A).
Fuel Filter:
1. Completely remove fuel cap from fuel tank (B) to be
able to remove fuel filter (D) from tank. Use a piece of
wire (C) with a hook formed at the end to pull filter out
of tank. (Fig. 8-3B)
2. Pull filter (D) off with a twisting motion. (Fig. 8-3C)
3. Replace fuel filter (D). (Fig. 8-3C)
NOTE:
Never operate the blower without the fuel filter.
Internal engine damage could result!
8-4. IDLE ADJUSTMENT
The carburetor was pre-set at the factory for optimum per-
formance. If further adjustments are necessary take your
blower to a McCulloch or other qualified service dealer.
8-2B
12
8 - MAINTENANCE INSTRUCTIONS
11
8 - MAINTENANCE INSTRUCTIONS
8-1. MAINTENANCE SCHEDULE
Perform these required maintenance procedures at the fre-
quency stated in the table. These procedures should also
be a part of any seasonal tune-up.
NOTE:
Maintenance, replacement, or repair of the emis-
sion control devices and system may only be performed by
a McCulloch or other qualified service dealer.
WARNING
To prevent serious injury, never perform maintenance or
repairs with unit running. Always service and repair a cool
unit. Disconnect the spark plug wire to ensure that the unit
cannot start.
A good preventive maintenance program of regular inspection and care will increase life and improve performance of your
chain saw. This maintenance checklist is a guide for such a program.
Cleaning, adjustment, and part replacement may be required, under certain conditions, at more frequent intervals than those
indicated.
CUSTOMER RESPONSIBILITY
B
8-2A
A
8-3A
A
8-3B
8-3C
C
B
D
CHECK FOR LOOSE SCREWS/
NUTS/BOLTS
CLEAN OR REPLACE AIR FILTER
REPLACE FUEL FILTER
REPLACE SPARK PLUG
INSPECT SPARK ARRESTER SCREEN
INSPECT FUEL HOSES
INSPECT TUBES
ITEM
BEFORE EACH USE
10
20
MAINTENANCE CHECKLIST
AFTER
EACH USE
HOURS OF
OPERATION
Summary of Contents for MB2500BP
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