Service manual

XTR Electric Powerboard
Service Manual
www.tanaka-usa.com [e-mail]
Revison 002
19
Batteries
The batteries in the XTR-S models are maintenance free type and can be permanently damaged if the outer
case is opened for any reason. Warning: Batteries contain sulphuric acid (electrolyte) which is highly
corrosive and poisonous. Getting electrolyte in your eyes or on your skin can cause serious burns. Wear
protective clothing and eye protection when working near batteries.
KEEP CHILDREN AWAY FROM BATTERIES.
Begin by charging the batteries overnight to ensure that
they have had ample opportunity to accept a full charge.
Next, remove the deck from the frame to provide access
to the batteries. Using a voltage meter, measure the
voltage in each battery individually
. NOTE – testing the
batteries at the charging receptacle can be misleading.
Always test battery integrity by applying a volt meter to
each battery with the deck removed
.
This test should reveal at least 12.5 volts each. If either battery contains less than this amount after
adequate charging time, it will be necessary to replace the batteries. A battery with a reading of 10 volts or
less indicates a completely dead battery that will not accept a charge.
NOTE – batteries must be replaced as a set. Replacing one battery will lead to the failure of both the
remaining original battery as well as the new single replacement.
Battery Charger
The battery charger is intended to supply a current to the
batteries in excess of 24 volts. If the PowerBoard has been
attached to the charger for sufficient time, yet the unit
does not perform as if fully charged, it requires testing.
With the deck removed, plug the charger into a wall
receptacle and into the PowerBoard charging receptacle,
(as if charging normally). Then, using a voltage meter,
attach the probes to the respective positive and negative
battery terminals ON THE SIDE OF THE BATTERIES NOT
CONNECTED TO THE CIRCUIT BREAKER. Under these
conditions, the volt meter should have a reading in excess
of 25.5 volts, (as high as 29.5 volts is normal). If the
voltage registers in this range, the charger is working
correctly to supply current to the batteries. Less than 24
volts would indicate a defective charger.