Bosch AKE 30-19 S Instrucciones De Servicio página 21

20
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6. Check if all parts are seated properly and hold
chain and chain bar in a level position.
7. Fit cover plate, check that arrows are still aligned
and ensure that the chain catch bolt 22 fits into
the groove of the cover plate 15.
15
8. Screw on the cover plate 15 with the locking
knob 14.
14
The chain is not yet tensioned. Tensioning the chain
applies as described under "Tensioning chain", item
1 – 7.
Tensioning chain
A
Always check the chain tension before use, after the
first cuts and regularly during use, approx. every
10 minutes. Upon initial operation, new chains can
lengthen considerably.
21 • F016 L70 506 • TMS • 19.10.07
17
18
11
22
The chain life of the saw chain mainly depends upon
sufficient lubrication and correct tensioning.
Avoid tensioning the chain if it is hot, as this will
cause the chain to become overtensioned when it
cools down.
1. Place the chain saw on any suitable flat surface.
2. Turn locking knob 14 approx. 1 – 3 turns anti-
clockwise to loosen the chain bar.
3. Check if the chain links are correctly located in the
slot around
sprocket 21.
14
4. Turn the red tensioning ring 13 clockwise ratchet-
ing until the correct chain tension is reached. The
ratchet mechanism prevents the chain tension
from loosening. The locking knob 14 may also
turn, when turning the tension ring 13. If the ten-
sioning ring 13 is hard to turn, loosen the locking
knob 14 once more anticlockwise.
5. The correct chain tension is reached when the
chain 10 can be raised approx. 3 – 4 mm from the
chain bar in the centre. This should be done by
using one hand to raise the chain against the
weight of the machine.
6. If the chain 10 is overtensioned, turn tensioning
ring 13 anticlockwise to loosen the chain.
7. If the chain 10 is tensioned optimal, lock the chain
bar 11 by tightening the locking knob 14 in clock-
wise direction. Do not use tools.
14
English - 21
the chain bar 11
13
and drive
10
3-4 mm