Partner B305 CBS Rev.7 - Manual (Page 13)

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WARNING:
Recheck the idle speed
after each adjustment. The trimmer head
must not move or spin at idle speed to avoid
serious injury to the operator or others.
WARNING:
Failure to follow these
steps may cause varnish to form in the
carburetor and difficult starting or permanent
damage following storage.
CAUTION:
NEVER operate trimmer
without the air filter. The air filter must be kept
clean. If it becomes damaged, install a new
filter.
CAUTION:
Remove fuel from unit and
store in approved container before starting
this procedure. Open fuel cap slowly to
release any pressure which may have formed
in fuel tank.
AIR FILTER
To Clean Air Filter:
1. Remove knob (A) holding air filter cover in
place, remove cover (B) and lift filter (C)
from air box (Fig. 16).
2. Wash filter in soap and water. DO NOT
USE GASOLINE!
3. Air dry filter.
4. Reinstall filter.
NOTE: Replace filter if frayed, torn, damaged
or unable to be cleaned.
FUEL CAP / FILTER
1. Completely remove fuel cap (A) 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.17A & Fig.17B)
2. Pull filter (D) off with a twisting motion.
3. Replace fuel filter (D). (Fig.17C)
NOTE: Never operate the trimmer without
the fuel filter. Internal engine damage could
result!
Fig. 17A Fig. 17B
A C
B
Fig. 17C
D
1. Spark plug gap = .025" (.635mm) (Fig.18).
2. Torque to 105 to 130 inch pounds (12 to 15
N•m). Connect spark plug boot.
SPARK PLUG
Fig. 18 Fig. 19
E
F
1. Remove cutter knife (A) from cutting
attachment guard (B) (Fig.19).
2. Place knife in a bench vise. Sharpen knife
using a flat file, being careful to maintain
the angle of cutting edge. File in one
direction only.
CUTTING ATTACHMENT GUARD
KNIFE SHARPENING
STORING A UNIT
1. Perform all the general maintenance
recommended in the Maintenance Section
of your User Manual.
2. Clean exterior of engine, Output Shaft,
cutting attachment guard and cutting head.
3. Drain fuel from the fuel tank.
4. After fuel is drained, start engine.
5. Run engine at idle until unit stops. This will
purge the carburetor of fuel.
6. Allow engine to cool (approx. 5 minutes).
7. Using a spark plug wrench, remove the
spark plug.
8. Pour 1 teaspoon of clean 2-cycle oil into
the combustion chamber. Pull starter rope
slowly several times to coat internal
components. Replace spark plug.
9. Store unit in a cool, dry place away from
any source of ignition such as an oil
burner, water heater, etc.
REMOVING A UNIT FROM STORAGE
1. Remove spark plug.
2. Pull starter rope briskly to clear excess oil
from combustion chamber.
3. Clean and gap spark plug or install a new
spark plug with proper gap.
4. Prepare unit for operation.
5. Fill fuel tank with proper fuel / oil mixture.
See Fuel and Lubrication Section.
Fig. 16
C
B A