Hitachi ZAXIS 120-3 class Operator's Manual page 140

Disconnecting the booster batteries
1. Disconnect black negative (–) cable (2) from the machine
frame first.
2. Disconnect the other end of black negative (–) cable (2)
from the booster batteries.
3. Disconnect red positive (+) cable (1) from the booster
batteries.
4. Disconnect red positive (+) cable (1) from the machine
batteries.
OPERATING THE ENGINE
3-9
Booster Batteries
(Black)
To Upperstructure of the Machine
2
Disconnecting the Booster Batteries
1
(Red)
Machine Batteries
M104-03-002