Cooling System - Hitachi ZW180 Operator's Manual

G. COOLING SYSTEM
Coolant
Use fresh water or normal tap water as a coolant. Do not use
strong acid or alkaline water. Use the coolant with genuine
Hitachi Long-Life Coolant (LLC) mixed by 30 to 50 %.
If the air temperature is expected to fall below 0°C (32°F), fill
the cooling system with an genuine Hitachi Long-Life Cool-
ant (LLC) and soft water mix. As a general rule, the ratio of
LLC should range between 30% and 50% as shown in the
table below. If the ratio is below 30%, the system may de-
velop rust, and if it is above 50%, the engine may overheat.
1. Close vent valve (5) by turning it clockwise.
2. Open plug (4) and drain valve (3). Drain fuel from the filter.
LLC Mixing Table
Air Mixing
temperature ratio
°C %
-1 30
-4 30
-7 30
-11 30
-15 35
-20 40
-25 45
-30 50
Air
Coolant Capacity: 26.0 liter
temperature
LLC (liter)
°C
-1
-4
-7
-11
13.0
-15
-20
-25
-30
WARNING:
• Antifreeze is poisonous; if ingested, it can cause
serious injury or death. Induce vomiting and get
emergency medical attention immediately.
• When storing antifreeze, be sure to keep it in a
clearly marked container with a tight lid. Always
keep ANTIFREEZE out of the reach of children.
MAINTENANCE
ZW220
Coolant Capacity: 38.0 liter
LLC (liter) Soft Water
11.4
11.4
11.4
11.4
13.3
15.2
17.1
19.0
ZW180
Coolant Capacity: 59.0 liter
Soft Water LLC (liter)
(liter)
13.0
ZW250
Coolant Capacity: 41.0 liter
LLC (liter)
(liter)
26.6 12.3
26.6 12.3
26.6 12.3
26.6 12.3
24.7 14.35
22.8 16.4
20.9 18.45
19.0 20.5
ZW310
Soft Water
(liter)
29.5 29.5
• If antifreeze is accidentally splashed into
eyes, flush with water for 10 to 15 minutes
and get emergency medical attention.
• When storing or disposing of antifreeze, be
sure to comply with all local regulations.
7-65
Soft Water
(liter)
28.7
28.7
28.7
28.7
26.65
24.6
22.55
20.5