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To make it easier to start, the chain saws PS-341 and PS-401
are equipped with a semi-automatic starting valve (B/5). Push-
ing this valve in reduces the amount of compression effort
needed, so that it is easier to bring the engine up to starting
speed when pulling the starter cable. The high pressure
increase in the combustion chamber that results from the first
ignitions will automatically close the starting valve (button pops
back out).
Models PS-340 and PS-400 do not have a starting valve.
Starting and carburetor adjustment are as for models
PS-341 and PS-401 except without the instruction "Push
the starting valve".
Starting the engine
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2
(PS-341, 401)
- Move at least 10 feet (3 m) away from the place where you
fuelled the saw.
- Make sure you have a good footing, and place the saw on
the ground in such a way that the chain is not touching
anything.
- Engage the chain brake (lock).
- Hold the tubular handle tightly with one hand and press the
chain saw to the ground.
- Steady the rear handle by standing in the hand guard.
Cold start:
- Put the short-circuit ignition switch in the "I" position (B/1).
- Press the choke up (B/2).
- Press and hold down the half-throttle lock button (B/3).
- Press the throttle (B/4) slightly. The half-throttle lock (B/3)
will arrest it.
B
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5
CAUTION: As soon as the engine is started it must be put
in idle to prevent the chain brake from being damaged.
- Now release the chain brake.
Warm start:
- As described above for cold starting, but without using the
choke (B/2).
Stopping the engine
- Put the short-circuiting switch (B/1) in position "O" (STOP).
STOP
- Release the grip. The throttle is now locked in half-throttle
position.
- Push the starting valve (B/5) (only PS-341 and PS-401).
- Slowly pull out the starter cable until you notice resistance
(the piston is positioned before the top dead center).
- Now pull the starter cable with a fast and forceful
movement until you hear the first ignition.
CAUTION: Do not pull out the starter cable more than
approx. 50 cm, and lead it back by hand.
- When you hear the first ignition, push the choke (B/2)
down. Push the starting valve again (only PS-341 and PS-
401) and pull the starter cable. As soon as the engine is
running, press the throttle (B/4) to release the half-throttle
lock (B/3), allowing the engine to idle.
Lubricating the chain
During operation there must always be sufficient chain oil in the
chain-oil tank to provide good chain lubrication. While working
make sure there is enough chain oil in the tank. If necessary,
add oil. The engine must be switched off!
To ensure troublefree operation of the oil pump the oil guide
groove at the crank case (H/3) and the oil inlet bore in the
guide bar (H/4) must be cleaned regularly.
Note:
After the saw has been turned off it is normal for residual chain
oil to drip from the oil feed system, the guide bar and the chain
for a time. This does
not constitute a defect!
Place the saw on a suitable surface.
H
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