Hitachi ZW180 Operator's Manual page 271

Procedures (ZW310)
1. Park the machine on solid level surface. Lower the bucket
on the ground. Stop the engine
2. Turn the parking brake switch ON. Set the neutral lever
lock in the LOCK position.
3. Block the front and rear frames with the articulate lock
bar.
4. Remove radiator cap (1). Completely drain the coolant
through the radiator drain cock. Close drain cock (2) and
plug (3). Supply either low impurity soft water or tap wa-
ter and cleaning agent (radiator cleaner). Run the engine
at slightly faster speed than slow idle speed to increase
the coolant temperature until the coolant gauge needle
enters the blue range. Then, continue to operate the en-
gine for approx. 10 more minutes.
MAINTENANCE
7-71
1
ZW310
M4GB-07-081
2
M4GB-07-086
ZW310