Festool C 12, Operating Instructions Manual

10

4  

Charge battery pack 

To load the battery pack, push it into the holder 
(3.1) on the charger up to the stop. 
Perform this in reverse to remove the battery 
pack from the charger. 
The battery type used (NiCd or NiMH) is detec-
ted automatically. 
Charging is controlled by a microprocessor. 
If a warm NiMH battery pack (>37° C) is inser-
ted, charging will only be carried out at a lower 
charge current. 
In this case, the charging time is extended.

The LED (3.2) indicates the respective 
charging state of the charger.
LED yellow – steady:

  Charger is ready for use.

LED green – fl ashing:

  Battery pack being charged.

LED green – steady:

  Battery pack fully charged, conservation char-

ge on.

LED red – fl ashing:

  General malfunction, e. g. full contact not 

being made, short-circuit, battery pack faul-
ty.

LED red – steady:

  Temperature of battery pack is outside per-

missible limit.

  It is essential that you read the 

instructions in the Chapter „Wor-
king instructions - Maintenance 
- Care“.

5 Working 

with 

the 

machine

5.1  

Initial operation

Turn on by pressing button (1.3). Depending on 
the pressure exerted on the button, the adjust-
ment of running speed can be varied infi nitely. 
Turn off by releasing the button (1.3). 
After releasing the button, the chuck is stopped 
and therefore, after-running of the equipment 
is prevented. 

5.2 Bit 

storage 

well

You can insert several bits or bit extensions into 
the bit magazine (1.2) with magnetic holder. 

5.3  

Warning signal 

With the following operational statuses, the 
machine sounds an acoustic warning signal and 
switches off: 

Peep at regular intervals

- Battery empty

Triple peep at regular intervals 

- Excessive load (torque)
- Machine too warm.

6  

lnstructions on application - main-
tenance - care

  Please pay attention to the follo-

wing instructions. Otherwise the-
re is a risk of damage to the tool, 
charger or battery pack.

- Repairs may only be performed by authorised 

technicians. LC 45 charging device: Even after 
disconnection from the mains, there is still a 
high capacitor voltage on the power output 
component on the inside of the device.

- Keep the air vents of the electronic equipment 

and the charger clean to guarantee the air 
circulation for cooling. 

- No metal objects (metal chips) should enter 

the charger at the contact points as well as 
through the cooling slits into the equipment 
(danger of short circuit).

- Only use original Festool battery packs. 
  Do not use spent and recycled battery packs. 

The user shall be liable for damages if Festool 
original battery packs are not used.

- Keep the connection contacts of electronic 

equipment, charger and battery pack clean.

- By keeping the battery pack in a ready for use 

charger, the battery pack will be kept in a state 
of readiness by fl oat charging conservation.

- Do not keep discharged battery pack (maxi-

mum one month) attached to charger whe-
never charger is detached from the power 
supply (danger of deep discharging).

- A new battery pack or a battery pack not used 

for a longer period of time reaches it full ca-
pacity after about 5 charging and discharging 
cycles.

- Battery packs should, before charging, be fully 

discharged if possible. 

  Continuous starting of the charging process 

shortens the lifespan of the batteries.

- A considerably reduced time of operation per 

charging shows that the battery pack is used 
up an should be replaced by a new one.

- NiCd battery packs that are not used for lon-

ger periods should be stored in a discharged 
state.

Special instructions for NiMH battery 
packs:

- The output of NiMH battery packs drops 

noticeably at ambient temperatures below 0° 
C or above 45° C.

- Do not overload the tool (do not load the tool 

excessively so that it comes to a standstill).

- Even if NiMH battery packs are not used, re-

charge them approx. every 4 months so that 
they retain their full capacity.

- NiMH battery packs should be left for 60 min. 

in the charger after every 10th fast charge 
to compensate any differences in capacity 
between the cells.

- Because NiMH battery packs discharge auto-

matically, store them preferably at ambient 
temperatures of between 0° C and 25° C.

Seen at Ideal Tools.