Tennant T391 Manuel D'instructions page 11

Remove the rear plastic battery charger protection, unscrew the
4 screws by using a Torx screwdriver n°T30.
switch. Reassemble the parts when completed .
Batteries: preparation
Installation and connection / removal of the batteries must be carri-
ed out by an TENNANT-approved technician (referred to hereinafter
as skilled technician).
During installation of the batteries or any type of battery maintenance,
the skilled technician must be provided with the necessary personal
protection devices (gloves, goggles, overalls, etc) to limit the risk of
battery poles, do not generate sparks and do not smoke.
If the batteries are dry, proceed as follows before installing them in the
machine:
for batteries until the plates are entirely covered (this requires at least a
ER.
Leave the batteries stand for 4-5 hours to allow air bubbles to come to the
surface and the plates to absorb the electrolyte.
Make sure the level of electrolyte is still above the plates and if necessary
top up with sulphuric acid solution.
Close the caps.
Install the batteries in the machine (following the procedure described
below).
low the instructions in the "Battery maintenance and charging" section.
Batteries: installation and connection
Remove the electronic key from the instrument panel before instal-
ling and connecting the batteries.
Make sure you connect the terminals marked with a "+" to the pos-
itive poles of the battery. Do not check the battery charge by spark-
Meticulously follow the instructions given below as short circuiting
Before releasing the screw ring on the tank opening cable, which is
only permitted for battery installation/replacement and for check-
ing/restoring the level of sulphuric acid solution, make sure that the
machine is standing on a perfectly horizontal surface.
After completing the above operations, hook the screw ring into the
opened manually afterwards.
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