porting the PRA 90, take care not to allow the
tripod to cause injury either to yourself or to other
persons. Particular care should be taken in check-
ing the position of the points at the ends of the
legs during transportation.
o)
Ensure that, when use of the PRA 90 is completed,
the threaded rod has always been fully wound
down before the legs of the tripod are folded
together.
5.3.1 Battery tool use and care
a)
Do not use batteries other than those approved
for use with the applicable tool or appliance.
Use
of other batteries or use of the battery for purposes
for which it is not intended presents a risk of fire and
explosion.
b)
Do not expose batteries to high temperatures or
fire.
This presents a risk of explosion.
c)
Do not disassemble, squash or incinerate batter-
ies and do not subject them to temperatures over
75°C.
A risk of fire, explosion or injury through con-
tact with caustic substances may otherwise result.
d)
Avoid ingress of moisture.
Moisture may cause a
short circuit resulting in a risk of burning injury or fire.
e)
Observe the special instructions applicable to the
transport, storage and use of Li-ion batteries.
f)
Avoid short-circuiting the battery.
Before inserting
the battery in the tool or appliance, check that the
terminals of the battery and the tool or appliance are
free from foreign objects. Short-circuiting the battery
terminals presents a risk of fire, explosion or contact
with caustic substances.
g)
Do not charge or continue to use damaged bat-
teries (e.g. batteries with cracks, broken parts,
bent or pushed-in and/or pulled-out contacts).
h)
Only use the PRA 85 mains adapter or the PRA 86
car battery connector for operating the appliance
and charging the battery.
There is otherwise a risk
that the appliance may be damaged.
6 Before use
NOTE
The PR 90 may only be operated using the Hilti PRA 84
battery.
6.1 Charging the battery
DANGER
Only use only the Hilti batteries, car battery connect-
ors and Hilti mains adapters provided, which are listed
under “Accessories”.
NOTE
Make sure the system to be charged is standing securely
during charging.
6.1.1 Charging a new battery for the first time
Charge the battery fully before using it for the first time.
6.1.2 Charging a previously used battery
Ensure that the outer surfaces of the battery are clean
and dry before inserting it in the corresponding charger.
Lithium-ion battery packs are ready to use at any time,
even when only partially charged. Charging progress is
indicated by the LEDs.
6.2 Options for charging the battery
DANGER
The PRA 85 mains adapter is for indoor use only.
Avoid ingress of moisture.
6.2.1 Charging the battery when it is still in the
appliance
9
NOTE
Take care to ensure that the temperatures during char-
ging correspond to the recommended range (0 to 40°C).
1. Place the battery into the battery compartment.
2. Turn the catch so that the charging socket on the
battery can be seen.
3. Plug the connection of the mains adapter or the car
battery connection into the battery.
4. During charging, the charge status is indicated by
the battery indicators on the appliance (the appli-
ance must be switched on).
6.2.2 Charging the battery outside the appliance
9
NOTE
Take care to ensure that the temperature during charging
corresponds to the recommended range (0 to 40°C).
en
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