Chain Brake; Saw Chain Oil - stayer OLMO G-1 250 C Operating Instructions Manual

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To assemble the guide bar (6) and chain (5), put the chain
saw on a stable surface and carry out the fallowing steps:
OLMO G1-250 B
1. Ralease the chain brake (4) by pulling the hand guard
(4) in the direction of the arrow.
2. Unscrew the retaining nut (8).
3. Carefully extend the pinion guard (10), extract it from
its hitch and remove it.
OLMO G2-400B / G3-450C / 22-400B
1. Ralease the chain brake (4) by pulling the hand guard
(4) in the direction of the arrow.
2. Unscrew the retaining nut (8).
3. Carefully extend the pinion guard (10), extract it from
its hitch and remove it.
4. Turn the adjusting screw of the chain (5) to the left
(counterclockwise) until the pin is located at the right
stopper.
5. Position the guide bar (6)
6. Lift the chain (5) above the pinion (10). Using your right
hand, guide the chain (5) in the upper chain guide slot of
the guide bar (6)
Take into account that the cutting edges along the
upper portian of the chain must be orientated in the
direction of the arrow!
7. Pull the chain (5) around the guide bar (6) in the
direction of the arrow.
8. Pull the guide bar (6) with your hand completely up
to its nose. Make sure that the blade of the chain (5) fits
within the slots of the guide bar (6)
9. First, push the pinion cover (10) to the inside of its hitch
(A). Make sure that the pin (B) of the tightener of the chain
(5) is within the hale in the guide bar (6). Then push it
over the retaining bolt whilst lifting the saw chain (5) over
the chain ratchet (9).
10. Manually tighten the retaining screw (8)
Tightening the chain
1. Position the pinion casing and apply the 2 fastening
screws (8), then tighten the chain (6) by means of the
screw (16) such that it becomes adjusted without excess
tension because you might break the chain.
2. Position the pinion casing, adjust screws and, finally,
adjust everything again.
Checking the
The tension of the chain (5) will be correct if the chain
rests against the bottom side of the guide bar (6) and may
still be rotated by hand.
While you are doing this, the chain brake (4) must be
in a released state. Check the tension of the chain (5)
frequently - new chains tend to elongate during use!
When checking the tension of the chain, the motor must
be switched off-
REMARK: Alternating use of 2 - 3 chains is recommended.
To secure unifarm wear of the guide bar, the guide bar
should be turned around each time the chain is replaced.

Chain brake

The OLMO chainsaw has a chain brake (4) actuated by
inertia as a standard equipment. When there are recoils
due to the contact of the tip of the guide bar (6) with the
wood (refer to "SAFETY PRECAUTIONS"), the chain
tension of the
brake (4) will stop the chain by inertia if the recoil is
sufficiently strong.
The chain (5) will stop in a fraction of a second.
The chain brake has been installed to lock the saw
chain before operating it and to stop it immediately in
case of emergency.
IMPORTANT: NEVER start the chain saw when the
chain brake is actuated! lf you do so, you may rapidly
cause great damage to the engine! ALWAYS release
the chain brake before starting to work.
REMARK: The chain brake is a very important safety
device and, as any other component, it is exposed
to normal wear and tear. Regular checking and
maintenance are important for your own safety and
must be carried out by a STAYER Service Center.
Actuating the chain brake
When recoil is sufficiently strong, the sudden acceleration
of the guide bar (6) combinad with the inertia of the hand
guard (4) will automatically actuate the chain brake.
To actuate the chain brake (4) manually, simply push the
hand guard farward (towards the tip of the saw) with your
left hand (arrow 1 ).
Releasing the chain brake
Pull the hand guard (4) towards yourself (arrow 2) until
you feel that it gets caught.
Fuel
(OLMO G1-250C, OLMO G2-400B, OLMO G3-450C)
This chain saw operates with mineral fuel products
(gasolina and oil).
Be especially careful when manipulating gasoline.
Avoid any kind of flames or fire. Do not smoke
(explosion hazard).
Fuel mixture
The chain saw engine is a highly efficient 2-stroke
engine. lt runs with a mixture of gasoline and oil far
2-stroke engines. The engine has been designed run with
unleaded regular gasoline having at least 95 octanes.
Should such a fuel not be available, you may use a higher
octane fuel. This will not affect the engine.
chain To achieve optimal engine peñormance and to protect
your heealth and enviroment, use unleaded gasoline
only. To lubricate the engine, use 2-stroke engine oil
(quality rating: JASO, FC, ISO, EGO) that is added to the
gasoline.
Do not use ready-mixed fuel from fuel stations.
The correct proportion of the mixture is :
25: 1 i.e. 25 parts of gasoline and 1 part of oil.

Saw chain oil

Use oil with an adhesive additive to lubricate the chain
and the guide bar. The adhesive additive prevenís the oil
falling from the chain too quickly.
We recommend using saw chain oil that is biodegradable
to protect the environment. The use of biodegradable oil
may even be required by local regulations.
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