Valex MMotPot Instructions D'emploi page 10

bar. Top up the oil at least every time refuelling is carried out.
- IMPORTANT! The length of time one oil fill-up lasts may vary according to the chain
tension, the type of wood being cut, the environmental temperature, the oil density, and
the usage of the chain saw.
STARTING UP THE ENGINE
PLEASE NOTE! Before starting the engine check that the petrol and oil tanks are
suitably full.
The machine has a centrifugal clutch (26) and with the engine at a minimum (without
acceleration) the chain does not turn. In order to stop the cutting device rotation it is
enough to release the accelerator (4) so that the engine slows to minimum speed. The
accelerator control is equipped with a safety lock-off lever (5) that aims to block involuntary
starting of the chain.
WARNING! The chain could begin moving during start-up with a cold engine. Use the
accelerator control immediately to bring the engine to minimum.
N.B.: FOR THE FOLLOWING PARAGRAPHS, FOLLOW THE INSTRUCTIONS FOR THE MODEL
DESCRIBED IN THE SPECIFICATIONS SHEET.
START-UP FOR MODEL 1 (SEE FIG. A IN THE SPECIFICATIONS SHEET)
Cold engine start-up
1) Activate the fuel pump (32) until the carburettor has been fully primed (when fuel
appears in the pump).
2) Shift on/off switch (25) to the "I" position
3) Activate the chain break by pushing the hand guard (8) towards the bar (10).
4) Shift the air control (24) to the "close" position.
5) Place the chain saw on the floor in a firm position and carefully check that the chain
and the bar are far from any objects or people.
6) Keep it in position by securely gripping the front hand grip (Fig. D).
7) Pull the start handle (9) a few times to trigger the feeding pump.
8) Bring the air control lever (24) to the "open" position and pull the start handle firmly
without releasing it with a jerk.
9) A few seconds after the engine has started, accelerate the machine a few times by
pressing the release lever 5 and the accelerator 4 at the same time to bring the engine
to a minimum.10) With the engine at minimum, deactivate the chain brake by pulling the
hand guard (8) towards the rear hand grip.
Hot engine start-up
1) Shift on/off switch (25) to the "I" position
2) Place the chain saw on the floor in a firm position and carefully check that the chain
and the bar are far from any objects or people.
3) Keep it in position by firmly gripping the front hand grip (Fig. D).
4) Pull the start handle firmly (9), to start the engine, without releasing it with a jerk.
Please note: With the engine warm, do not close the air.
START-UP FOR MODEL 2 (SEE FIG. A IN THE SPECIFICATIONS SHEET)
Cold engine start-up
1) Activate the fuel pump (32) until the carburettor has been fully primed (when fuel
appears in the pump).
2) Shift the command lever (34) to the "close" position.
3) Activate the chain brake by pushing the hand guard (8) towards the bar (10).
4) Place the chain saw on the floor in a stable position and carefully check that the chain
and the bar are far from any objects or people.
5) Keep in position by holding the rear hand grip firmly (Fig. D).
6) Pull the start handle (9) a few times and stop as soon as you hear the engine start.
7) Shift the command lever (34) to the "open" position.
8) Pull the start handle (9) repeatedly until the engine starts, without releasing it with a jerk.
9) A few seconds after the engine has started, accelerate the machine a few times by
pressing the release lever 5 and the accelerator 4 at the same time to bring the engine
to a minimum.
10) With the engine at a minimum, deactivate the chain brake by pulling the hand guard
(8) towards the rear hand grip.
Hot engine start-up
1) Shift the command lever (34) to the "open" position.
2) Place the chain saw on the floor in a stable position and carefully check that the chain
and the bar are far from any objects or people.
3) Keep in position by holding the rear hand grip firmly (Fig. D).
4) Pull the start handle (9) repeatedly until the engine starts, without releasing it with a jerk.
Please note: Do not close the air when the engine is hot.
If necessary, close the air using the lever (34) until the engine starts, then shift the lever
back into the "open" position to start the machine.
SWITCHING OFF THE ENGINE
SWITCHING OFF MODEL 1 (SEE FIG. A IN THE SPECIFICATIONS SHEET)
- Release the accelerator lever (4) so that the engine goes back to a minimum and the
chain stops.
- Shift the engine off switch (25) to "O".
SWITCHING OFF MODEL 2 (SEE FIG. A IN THE SPECIFICATIONS SHEET)
- Release the accelerator lever (4) so that the engine goes back to a minimum and the
chain stops.
- Shift the command lever (34) to the "O" STOP position.
- 10 -
BREAKING IN THE ENGINE AND CHAIN
Do not use the chain saw on full load or for extended periods for the first 20 hours of use
and do not allow the machine to function idly at full throttle. Check the chain tension often.
CARBURATION
Caution! For correct machine carburation, clean the air filter (fig. A, 31) from dust/
sawdust and oil regularly using the instructions contained in the maintenance and
cleaning chapter.
The carburation has already been correctly adjusted in the factory and does not need
to be set. In case of carburation faults, clean the air filter or have the chain saw checked
at a customer service centre.
Please note: The carburation can vary according to climatic conditions and/or altitude.
The screws L, H, T act on the following parameters:
Screw L: It regulated the carburation of the minimum and must be regulated so that the
motor answers ready to the abrupt accelerations and has a good lessened operation.
Screw H: It regulated the carburation to full power. It must be regulated so that the motor
can distribute the maximum power during the phase of cut.
Screw T: It increases or it diminishes the number of turns of the minimal regime. It must
be regulated so that to the minimal regime the chain does not move.
CHAIN SAW MODEL 1 (FIG. A. POS. 35)
- Completely screw in screw L for acceleration adjustment (Fig.A, Pos.1) and unscrew by
1+1/4 (+/-1/8) of a turn.
- Completely screw in screw H for maximum throttle opening and unscrew by 1+1/4
(+/-1/8) of a turn.
- Screw T, adjustment screw for minimum, at minimum the chain must absolutely not
move.
CHAIN SAW MODEL 2 (FIG. A. POS. 35)
- Screw L (Fig. A, Pos 1) to adjust acceleration: tighten completely and unscrew by 1 to
1+1/2 turns.
- Screw H, to adjust maximum throttle opening: tighten completely and unscrew by 1+1/2
to 2 turns.
- Screw T, to adjust the minimum: at minimum the chain must not move at all.
STARTING/STOPPING THE CHAIN (FIG.A)
Starting the chain
For starting the chain it is enough, after switching on the engine, to press the accelerator
lever (in sequence 5 and 4).
Stopping the chain
It is enough to release the accelerator lever (4).
WARNING! When you have finished working or whilst taking a break, always switch
off the engine.
WARNING! In order to prevent kickbacks always grip both of the hand grips safely and
avoid cutting with the tip of the bar and avoid getting the bar stuck in the trunk being cut.
FUNCTIONING OF THE EMERGENCY CHAIN BRAKE (FIG.A)
The chain brake is a safety device that is activated by exerting pressure on the front hand
guard (8). In case of kickback, the operator's hand hits the hand guard, activating the
chain brake.
The purpose of the chain brake is to reduce danger in case of kickback.
Before using the chain saw, you must test the chain brake as follows:
- Check that the chain brake is deactivated, pushing backwards the front hand guard (8)
towards the rear handle.
- Position the chain saw on a solid flat surface that has been cleared of all objects.
- Switch on the chain saw (see "Starting up the engine ").
- With the chain saw switched on, activate the chain brake by turning your left wrist against
the hand guard (8) without releasing the hand grip.
- The chain should stop instantly.
- Release the accelerator control (4) and switch off the engine.
N.B. Release the accelerator lever immediately.
WARNING! If the chain does not stop when the brake is activated, have the chain saw
checked at an authorised customer service centre. Do not use the chain saw if the
chain brake does not function properly!
ADJUSTMENT FOR CHAIN LUBRICANT (FIG. A)
Using a screwdriver in the screw (36) can vary the amount of oil will fall in the chain:
- Clockwise to increase the amount of oil.
- Clockwise to decrease oil qauntità.
In addition to visually check the oil deposited on the chain, you can practically see if oil is
present in correct quantity:
- Start the machine and direct the tip of the bar toward the floor without touching it.
- Speed up in order to get the maximum speed.
- If the chain is lubricated properly in the floor you will notice a line of oil to the bar.