Dolmar ES-154 Manual De Instrucciones página 15

Check the chain brake as follows:
1. Hold the chain saw with both hands when switching it
on. Hold the rear handle with your right hand, the front
handle with your left. Make sure that the bar and the
chain do not contact with any object.
2. First press the lock-off button, then the switch trigger.
The saw chain starts immediately.
3. Press the front hand guard forwards using the back of
your hand. Make sure that the saw chain comes to an
immediate standstill.
CAUTION:
• If the saw chain does not stop immediately, do not use
the saw under any circumstances. Consult DOLMAR
authorized service centers.
Checking the run-down brake
Switch on the chain saw.
Release the switch trigger completely. Make sure the saw
chain comes to a standstill within a second.
CAUTION:
• If the saw chain does not stop immediately, do not use
the saw under any circumstances. Consult DOLMAR
authorized service centers.
Checking the chain oiler
Before starting work, check the oil level in the tank, and
the oil delivery.
The oil level can be seen in the oil level sight shown in the
figure. (Fig. 25)
Check the oil delivery as follows:
Start the chain saw.
With the saw running, hold the saw chain approximately
15 cm above a tree trunk or the ground. If lubrication is
adequate, the oil spray will produce a light oil trace.
Observe the wind direction, and do not expose yourself to
the oil spray unnecessarily.
CAUTION:
• If an oil trace is not formed, do not use the saw. The
lifespan of the chain will otherwise be reduced. Check
the oil level. Clean the oil feed groove and the oil feed
hole in the bar (refer to "MAINTENANCE").
Adjusting the chain lubrication (Fig. 26)
You can adjust the oil pump feed rate with the adjusting
screw.
WORKING WITH THE CHAIN SAW
CAUTION:
• The first time user should, as a minimum practice, do
cutting logs on a saw-horse or cradle.
• When sawing precut timber, use a safe support (saw
horse or cradle). Do not steady the workpiece with your
foot, and do not allow anyone else to hold or steady it.
• Secure round pieces against rotation.
• Keep all parts of the body away from the saw chain
when the motor is operating.
• Hold the chain saw firmly with both hands when the
motor is running.
• Do not overreach. Keep proper footing and balance at
all times.
Bucking (Fig. 27)
For bucking cuts, rest the spike bumper shown in the
figure on the wood to be cut.
With the saw chain running, saw into the wood, using the
rear handle to raise the saw and the front one to guide it.
Use the spike bumper as a pivot.
Continue the cut by applying slight pressure to the front
handle, easing the saw back slightly. Move the spike
bumper further down the timber and raise the front handle
again.
When making several cuts, switch the chain saw off
between cuts.
CAUTION:
• If the upper edge of the bar is used for cutting, the
chain saw may be deflected in your direction if the
chain becomes trapped. For this reason, cut with the
lower edge, so that the saw will be deflected away from
your body. (Fig. 28)
Cut wood under tension on the pressure side (A) first.
Then make the final cut on the tension side (B). This
prevents the bar from becoming trapped. (Fig. 29)
Limbing
CAUTION:
• Limbing may only be performed by trained persons. A
hazard is presented by the risk of kick-back.
When limbing, support the chain saw on the trunk if
possible. Do not cut with the tip of the bar, as this presents
a risk of kickback.
Pay particular attention to branches under tension. Do not
cut unsupported branches from below.
Do not stand on the felled trunk when limbing.
Burrowing and parallel-to-grain cuts
CAUTION:
• Burrowing and parallel-to-grain cuts may only be
carried out by persons with special training. The
possibility of kickback presents a risk of injury.
Perform parallel-to-grain cuts at as shallow an angle as
possible. Carry out the cut as carefully as possible, as the
spike bumper cannot be used. (Fig. 30)
Felling
CAUTION:
• Felling work may only be performed by trained
persons. The work is hazardous.
Observe local regulations if you wish to fell a tree.
(Fig. 31)
– Before starting felling work, ensure that:
(1) Only persons involved in the felling operation are in
the vicinity;
(2) Any person involved has an unhindered path of
retreat through a range of approximately 45° either
side of the felling axis. Consider the additional risk
of tripping over electrical cables;
(3) The base of the trunk is free of foreign objects,
roots and ranches;
(4) No persons or objects are present over a distance
of 2 1/2 tree lengths in the direction in which the
tree will fall.
15