CMi 1735-01 BKS, Instruction Manual

Page: 41 / 52

the tension of the chain. Check whether the chain is
seated correctly all around the bar (Fig. 5).
2. After adjusting – the tip of the bar still pointing upward
– fully tighten the bar fastening nuts. The chain is
tensioned correctly if it is seated closely and can be
manually pulled (wear protective gloves!) all the way
around the bar.
NOTE: If the chain cannot be pulled around the bar
smoothly, but is sluggish or even blocks, the tension is
too high. In this case, do the following minor adjustments:
A. Loosen the 2 bar fastening nut until they are finger-
tight. Decrease the tension by slowly turning the
adjusting screw ANTICLOCKWISE. Pull the chain back
and forth on the bar. Repeat this until the chain can be
moved smoothly, but is still seated closely. To increase
the tension turn the adjusting screw CLOCKWISE.
B. If the saw chain has the correct tension push the tip of
the bar fully upward and tighten the 2 bar fastening nuts.
ATTENTION ! A new chain will stretch so that read-
justment will be required after about 5 cuts. This is
normal for new chains.
ATTENTION ! If the saw chain is TOO LOOSE or TOO
TIGHT the teeth, bar, chain, and crankshaft bearing
will be subject to increased wear and tear. Fig. 6
indicates the correct cold (A) and warm tension (B)
as well as the too low tension of the saw chain (C).
MECHANICAL TEST OF THE CHAIN BRAKE
The chain saw is equipped with a chain brake designed to
reduce the risk of injuries resulting from kickbacks. The
brake actuates if the brake lever experiences pressure
as it would, for example, be the case when a kickback
occurs and the operator’s hand suddenly hits the lever. If
the brake is actuated the chain stops abruptly.
ATTENTION ! The chain brake has the function to reduce
the risk of injuries resulting from kickbacks; however, it
cannot offer a proper protection if the saw is used
carelessly. Check the chain brake before each use of the
saw and repeat the check in the course of your work.
CHECKING THE CHAIN BRAKE
1. The chain brake is DISENGAGED (chain can move) if
the BRAKE LEVER IS PULLED BACK AND LOCKED
(Fig. 7A).
2. The chain brake is ENGAGED (chain is blocked) if the
brake lever is pulled forward. In this case, the chain
must be immovable (Fig. 7B).
NOTE: The brake lever should lock into place in both
positions. Do not use the saw if you realise a strong
resistance or the lever cannot be shifted. Take it to a
professional technical service point to have it repaired
immediately.
FUEL AND OIL
FUEL
For a maximum performance of your chain saw, use regular
petrol (two-star, unleaded) mixed with a special 40:1 2-
stroke engine oil. Please adhere to the mixing instructions.
ATTENTION ! Do not use pure petrol without oil for
this saw. This will damage the engine and you will
loose your warranty rights. Do not use fuel mixtures
that have been stored for more than 90 days.
ATTENTION ! Do not use any 2-stroke oil products
with a mixture ratio of 100:1. Inappropriate lubrication
will damage the engine and you will loose your
warranty covering the engine.
FUEL MIXTURE
Mix the fuel with 2-stroke oil in an approved container.
Refer to the mixing table to find the required mixture ratio
for the fuel and oil. Shake the container to properly mix
the two fluids.
Petrol 2-stroke oil/40:1
1 Litre 25 ml
5 Litre 125 ml
ATTENTION ! If you should you use an improper mixture
ratio you will loose your warranty rights.
RECOMMENDED FUELS
Some common petrol brands have additives like alcohol or
ether compounds to meet the standards for cleaner exhaust
gases. The engine runs satisfactorily with all sorts of petrol.
CHAIN OIL
The chain oil tank must be filled every time you fill the
fuel tank. We recommend the use of special chain oil.
CHECKS BEFORE STARTING THE ENGINE
ATTENTION ! Do never start or operate the saw if
the bar and chain are not properly assembled.
1. Fill the fuel tank (A) with the proper fuel mixture (Fig. 8).
2. Fill the oil tank (B) with the proper chain and bar oil
(Fig. 8).
3. Make sure that the chain brake (C) has been disen-
gaged before the engine is started (Fig. 8).
STARTING THE ENGINE
There are 3 starter positions: BETRIEB (OPERATION) (A),
HALB (HALF THROTTLE) (B), and CHOKE (C) (Fig. 9A).
1. To start the engine slide the red STOP switch (D) upward
(Fig. 9B).
2. Put the yellow choke actuating lever (E) in position
(CHOKE) (Fig. 9C).
3. Push the button (F) of the fuel pump 10 times (Fig. 9D).
4. Slide the operation lock forward: Push and hold down
the lock (A), push the throttle lever (B), let go of the
throttle lever and then the lock (Fig. 10A).
5. Put the saw on a solid, level rest. Hold the saw as
shown on the picture. Pull the starter 4 times quickly.
Beware of the running chain! (Fig. 10B).
6. Put the yellow choke actuating lever (D) in position
(HALB (HALF)) (Fig. 10C).
7. Hold the saw fast and quickly pull the starter 4 times.
The engine should start now (Fig. 10D).
8. Let the engine run up for 10 seconds. Push the throttle
lever (E) and put it in position LEERLAUF (IDLE); proceed
to step 9 (Fig 10E).
9. Put the yellow choke actuating lever (F) in position
(BETRIEB (OPERATION)) (Fig. 10F). If the motor
does not start repeat the steps described above.
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