Adjusting The Flow Of Bar And Chain Oil - Stihl MS 500i Instruction Manual

11 Lubricating the Saw Chain and Guide Bar
Closing
To close the tank:
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► Raise the grip on the top of the cap until it is upright at a
90° angle. Insert the cap in the chain oil tank opening with
the exterior positioning mark (1) lined up with the open
symbol (2) on the chain oil tank housing.
► Using the grip, press the cap down firmly while turning it
clockwise to the closed position (approximately 1/4 turn).
In the closed position, the interior (4) and exterior (1)
positioning marks will align with the closed symbol (3) on
the chain oil tank housing.
► Fold the grip flush with the top of the cap and check for
tightness.
► If the grip does not lie completely flush with the cap or the
detent on the grip does not fit in the corresponding recess
in the tank opening, or if the cap is loose, the cap is not
properly seated and you must repeat the above steps.

11.3 Adjusting the Flow of Bar and Chain Oil

WARNING
Never operate your saw without bar and chain lubrication. If
the chain runs dry, the cutting attachment will be damaged
beyond repair within a very short time. A damaged chain
may break, resulting in severe or fatal personal injury.
Always check chain lubrication and the oil level in the tank
before starting work and periodically during work.
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This chain saw is equipped with an adjustable oil pump. The
flow of bar and chain oil can be set for different guide bar
lengths, types of wood and working techniques.
To adjust the flow of bar and chain oil:
► Shut off the engine, @ 15.
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► Engage the chain brake, @ 12.1.
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The chain oil feed rate is suitable for most applications when
the oil flow adjusting screw (1) is in position E (Ematic).
To increase the flow:
► Turn the oil flow adjusting screw clockwise.
To reduce the flow:
► Turn the oil flow adjusting screw counter-clockwise.
To increase the flow beyond the standard setting:
► Press in the end stop (2) using a suitable tool. Once the
oil adjustment limiter has been pressed in, it will remain
permanently in this position.
► Turn the oil flow adjusting screw clockwise.
NOTICE
Depending on the setting, the oil tank may run dry before the
fuel tank. Monitor the bar and chain oil level between
refuelings and add bar oil if necessary. Refill the chain oil
tank every time you refuel.
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