Battery Disconnect Switch - Hitachi ZW 550-6 Operator's Manual

Battery Disconnect Switch

IMPORTANT: Never attempt to turn the battery
disconnect switch OFF while engine running.
Failure to do so may damage the electrical system.
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WARNING: After stopping the engine, the DEF
pump keeps operating to return the DEF in piping
to the DEF tank. Do not turn the battery disconnect
switch OFF while pump running. Failure to do so
may damage the SCR system.
The battery disconnect switch is different from the engine
start key switch. When the battery disconnect switch
is turned OFF, the electrical system will completely be
isolated from the battery. No current will flow through the
entire electrical system.
Before turning the battery disconnect switch OFF, be sure
to turn the key switch OFF and wait 5 minutes or more after
the engine stops before turning battery disconnect switch.
Because controllers communicate with each other and
record information after the engine stops, battery power is
required for a minimum of 5 minutes.
Use the battery disconnect switch only for the following
purposes; otherwise, turn it ON.
 Before maintaining and repairing the electrical system
 Before storing the machine for long period (Discharge
prevention)
 Theft prevention after use.
Turn the battery disconnect switch ON before starting the
engine.
The battery disconnect switch is located inside of the
battery box.
OPERATOR'S STATION
1-135
115Z7-batterySW2