Hitachi Zaxis 850LC-3 Operator's Manual page 152

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
2
3-8
Booster Batteies
(Black)
To Upperstructure of the Machine
Connecting the Booster Batteries
1
(Red)
Machine Batteies