Using Booster Batteries - Hitachi EX27U Operator's Manual

USING BOOSTER BATTERIES

CAUTION: An explosive gas is produced while
batteries are in use or being charged. Keep
flames or sparks away from the battery area.
Do not continue to use or charge the battery
when the electrolyte level is lower than specified.
Explosion of the battery may result.
Charge the batteries in a well ventilated area.
Park the machine on a dry, firm or concrete sur-
face, not on steel plates. If the machine is parked
on steel plate, dangerous sparks may be unex-
pectedly created on the machine.
Never connect a positive terminal to a negative
terminal, as a dangerous short circuit will occur.
IMPORTANT: The machine electrical system is a 12
volt negative (–) ground. Use only 12
volt booster batteries.
When the machine batteries are exhausted, start the en-
gine using booster batteries as shown below.
1. Connecting the booster batteries
a. Stop the engine of the machine on which booster bat-
teries are mounted.
b. Connect one end of red cable (1) to the positive (+)
terminal of the machine batteries, and the other end
to the positive (+) terminal of the booster batteries.
c. Connect one end of black cable (2) to the negative
(–) terminal of the booster batteries, and then make
ground connection to machine bracket (3) of the ma-
chine to be started with the other end of black (–) ca-
ble (2).
d. Start the engine
2. Disconnecting the booster batteries
a. Disconnect black negative (–) cable (2) from machine
bracket (3) first.
b. Disconnect the other end of black negative (–) cable
(2) from the booster batteries.
c. Disconnect red positive (+) cable (1) from the booster
batteries.
d. Disconnect red positive (+) cable (1) from the ma-
chine batteries.
OPERATING THE ENGINE
3-3
Connecting the Booster Batteries
(Red)
Booster Batteries
(Black)
2
To Bracket (3) of the Machine
EX27u, 35u
EX50u
SA-032
1
Machine Batteries
M503-03-002
3
M586-01-052
3
M573-01-019