6. Maintenance/Adjustment
6-2
A030594
A030595
6.1.1 Charge battery
Disconnect the cable between battery and the unit, and
charge the battery with a 12 V battery charger. Do not
charge two batteries at the same time.
Be sure not to connect (+) and (–) terminals backwards.
Be sure to read the operation manual of the battery
charger to know if it is applicable, before using it.
6.1.2 How to use booster cable
When a booster cable has to be used or when cables are connected again after an battery is
replaced, be careful not to connect (+) and (–) terminals backwards. Such wrong-connection will
cause spark and damage to each component.
<Procedure for using a booster cable>
① Stop the engine.
② Connect one end of the (+) cable to the (+) terminal
of the machine battery.
③ Connect the other end of the (+) cable to the (+)
terminal of the external battery.
④ Connect the (–) cable with the terminal (–) of the
external battery.
⑤ Connect the other end of the (–) cable to the engine
block of the machine.
⑥ Start up the engine.
⑦ Disconnect the booster cable by following the
procedure back in the reverse order.
External battery (12V)
Connect to the engine block
of the unit
Machine battery
Do not reverse the cable connection
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