Hitachi Zaxis 850LC-3 Operator's Manual page 271

1 Check Coolant Level --- daily
WARNING: Do not loosen radiator filler cap (1) unless
the system is cool. Loosen the cap slowly to the stop.
Release all pressure before removing the cap.
With the engine cold, the coolant level must be between the
FULL and LOW marks on coolant reservoir (2). If the coolant
level is below the low mark, add coolant to coolant reservoir (2).
If coolant reservoir (2) is empty, remove cover (3) located on
the radiator and add coolant to the radiator and then to cool-
ant reservoir (2).
MAINTENANCE
7-59
Radiator Upper Cover
1
FULL
LOW
3
M1J1-07-078
M1J1-07-039
2
M1JB-07-027