Hitachi ZW 180-6 Operator's Manual page 217

2. Keep the engine running at low to medium speed for
about 5 minutes more.
f
NOTE: At this time, do not operate the engine in slow or
fast speed. Use medium engine speeds for safe and quick
warm up.
3. Fully extend the bucket cylinder.
f
NOTE: Do not continuously operate the bucket control
lever for more than 10 seconds at a time. Do not bang
linkage when cold.
4. Slowly and fully retract the bucket cylinder.
f
NOTE: Do not continuously operate the bucket control
lever for more than 10 seconds at a time. Do not bang
linkage when cold.
5. Repeat steps 2 to 4 above until the loading linkage
speed is normal. When the air temperature is
lower than 0 °C (32 °F), extend the warm up time
by running the engine at about 1200~1500 min
(RPM's).
6. Slowly and fully turn the steering wheel while
running the engine at low idle as needed.
f
NOTE: Headlights, working lights or room light may
become dim during engine preheating in the cold
environment.
OPERATING THE ENGINE
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