30
| English
F 016 L81 531 | (4.4.16)
Bosch Power Tools
Battery Temperature below 0 °C or above 45 °C
Continuous lighting
of the
red LED
24
indicates that the bat-
tery temperature is not within the rapid-charging temperature
range of 0 °C – 45 °C. As soon as the allowable temperature
range is reached, the battery charger automatically switches
to rapid charging.
When the battery is not within the allowable temperature
range, the red battery LED lights up when inserting the bat-
tery into the battery charger.
No charging procedure possible
If a different malfunction of the charging procedure is pre-
sent, this will be indicated through
flashing
of the
red charge
control LED
24
.
The charging procedure cannot be started and the battery
cannot be charged (see “Fehlersuche”).
Charging Advice
With continuous or several repetitive charging cycles without
interruption, the charger can warm up. This is not meaningful
and does not indicate a technical defect of the battery charg-
er.
A significantly reduced working period after charging indi-
cates that the battery is used and must be replaced.
Observe the notes for disposal.
Battery Cooling (Active Air Cooling)
The fan control integrated in the battery charger controls the
temperature of the inserted battery. When the battery tem-
perature is above 30 °C, a fan cools down the battery to the
optimal charging temperature. The switched-on fan produces
a fan noise.
The battery temperature is within the optimal charging tem-
perature range when the fan is not running. Another reason
for a non working fan might be that it is defective. In this case,
the charging time of the battery might be extended.
Mounting and Tensioning the Chain
Saw (see figures C1–C4)
Do not insert battery before the chain saw is complete-
ly assembled.
Always wear protective gloves when handling the
chain.
Chain and Chain Bar Assembly
– Unpack all parts carefully.
– Place the chain saw on any suitable flat surface.
Use only Bosch approved chains designed for chain-
bars with 1.1 mm groove (gauge).
– Remove cover
13
by turning the black Locking knob
12
.
– Slide the saw chain
11
in the slot around the chain bar
10
.
Ensure the saw chain is in the correct running direction by
comparing the saw chain with the rotation symbol
27
on
bar
10
.
– Fit the chain onto the drive sprocket
28
and guide the
chain bar
10
, so that the fastening bolt
29
and the two
guide fins
32
fit into the keyway of the chain bar
10
, and
that the chain tensioning pegs
30
fits into the respective
holes of the chain bar
10
.
If necessary, turn the chain tensioning knob
15
to bring
tensioning pegs
30
in alignment with the hole in the chain
bar
10
.
– Check if all parts are seated properly and hold the chain
bar and the chain in this position.
– Turn the chain tensioning knob
15
until all the slack is tak-
en up in the saw chain
11
.
– Fit the cover
13
exactly and take care that the chain catch
bolt
33
engages into the groove of the cover plate
13
.
– Lightly tighten the cover
13
with the locking knob
12
.
– The chain is not yet tensioned. The saw chain is tensioned
as described in section “Tensioning the Saw Chain”.
Tensioning the Saw Chain (see figure D)
Always check the chain tension before use, after the first cuts
and regularly during use approx. every 10 minutes. Upon ini-
tial operation, new chains can lengthen considerably.
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 and face too tightly against
the chain bar when it cools down.
– Place the chain saw on any suitable flat surface.
– Loosen locking knob
12
until it is just holding chain bar
10
in position (do not remove!).
– Check if the chain links are correctly located in the slot
around the chain bar
10
and on the drive sprocket
28
.
– Turn chain tensioning knob
15
clockwise until the correct
chain tension is reached. The turning action forces the
chain bar
10
forward via the chain tensioning pegs
30
.
AL 3640 CV
Professional
AL 3620 CV
Professional
AL 3640 CV
Professional
AL 3620 CV
Professional
OBJ_BUCH-1275-004.book Page 30 Monday, April 4, 2016 2:21 PM
