Hitachi ZX200-5G Workshop Manual page 71

Bleeding Air from Radiator
d
CAUTION: Do not loosen the radiator cap until
the system has cooled. Hot steam may spout out
and cause severe burns. Wait until coolant cools
and loosen the cap slowly. Release all pressure
and remove the cap.
Preparation
1. Park the machine on a solid and level surface.
Set the front attachment in position for checking
hydraulic oil level.
2. Stop the engine. Remove the radiator cap.
SECTION 1 GENERAL
Group 4 Bleeding Air
W1-4-1-5