12
ASSEMBLY INSTRUCTIONS (Cont.)
oil that is formulated to perform over a wide range of temperatures with no diluting
required in the bar lube reservoir. Do not use motor oil or any other petroleum-based
oil.
1. Remove the bar lube reservoir cap (Fig. 8).
2. Carefully pour the bar and chain oil into the bar lube reservoir.
3. Replace the bar lube reservoir cap and tighten securely.
4. Wipe off excess oil.
ADJUSTING THE CHAIN TENSION
bar groove (Fig. 11). Check for proper chain tension before starting the unit and
periodically during operation.
NOTE: A new chain tends to stretch. Check the chain tension frequently and
tighten as required.
1. Stop the engine, wait for all moving parts to stop, allow the unit to cool,
disconnect the spark plug wire and disengage the chain brake.
2. Slightly loosen the bar-retaining nuts (Fig. 4).
3. Hold the guide bar tip up and rotate the chain-tensioning screw
(Fig. 12) clockwise with a standard screwdriver to tension the chain. The desired
tension depends on the temperature of the chain:
Cold Chain Tensioning - A cold chain is correctly tensioned when there is no sag
on the underside of the guide bar and the chain seats snugly against the guide
bar with the drive links in the bar groove.
Warm Chain Tensioning - During normal operation, the temperature of the chain
will increase. The drive links of a correctly tensioned warm chain will hang
approximately 1.3 mm out of the bar groove (Fig. 13).
4. Once adjusted, lift the tip of the guide bar up to check for proper tension (Fig.
14). If the chain is still too loose, release the tip of the guide bar and turn the
chain-tensioning screw 1/2 turn clockwise. Repeat this process until the desired
tension is achieved.
NOTE: If the chain is too tight, it will not rotate. To loosen the chain, turn the chain-
tensioning screw 1/4 turn counterclockwise. Ensure that the chain can be turned by
hand without binding (Fig. 15). Also note that the chain will not rotate if the chain
brake is engaged.
5. Hold the tip of the guide bar up and securely tighten the bar- retaining nuts.
FUELING THE ENGINE
This unit is designed to operate on a mixture of unleaded gasoline and 2-cycle
engine oil. Refer to Oil and Fuel Information for complete mixing instructions and
detailed fuel requirements.
NOTE: Always clean the fuel tank cap and surrounding area before fueling the unit.
Use a damp cloth. This helps prevent debris from entering the fuel tank.
