Starting The Engine - Ryobi RY10521B Manuel D'utilisation

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ADDING BAR AND CHAIN LUBRICANT

See Figure 3.

Use RYOBI Bar and Chain Lubricant. It is designed

for chains and chain oilers, and is formulated to

perform over a wide temperature range with no dilu-

tion required. Chain saw should use approximately

one tank of lubricant per tank of fuel.

NOTE: Do not use dirty, used, or otherwise con-

taminated lubricants. Damage may occur to the

oil pump, bar, or chain.

 Carefully pour the bar and chain lubricant into

the oil tank.

 Fill the oil tank every time you fuel the engine.

OPERATING THE CHAIN BRAKE

See Figures 4 - 5.

Check the operating condition of the chain brake

prior to each use.

 Engage the chain brake by rotating your left

hand around the front handle, allowing the back

of your hand to push the chain brake lever/hand

guard toward the bar while the chain is rotating

rapidly. Be sure to maintain both hands on the

saw handles at all times.

 Reset the chain brake back into the RUN posi-

tion by grasping the top of the chain brake lever/

hand guard and pulling toward the front handle

until you hear a click.

WARNING:

If the chain brake does not stop the chain

immediately, or if the chain brake will not stay

in the run position without assistance, take the

saw to an authorized service center for repair

prior to use.

NOTICE:

Before each use, check to make sure that the

chain is properly tensioned. A cold chain is cor-

rectly tensioned when there is no slack on the

underside of the guide bar, the chain is snug,

and it can be turned by hand without binding.

During normal saw operation, the temperature

of the chain increases. The drive links of a cor-

rectly tensioned warm chain will hang approxi-

mately .050 in. out of the bar groove.

See the Adjusting the Chain Tension instruc-

tions in the Maintenance section of this manual

to properly adjust the chain tension.

OPERATION