G. Cooling System - Hitachi ZAXIS 30U-5N Operator's Manual

G. Cooling System

Coolant
IMPORTANT: Use soft 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 a coolant mixed with less than 30 % of genuine
Hitachi Long-Life Coolant (LLC) is used, service life of
the cooling parts may be shortened due to damage by
freezing or corrosion of coolant system parts.
If it is above 60 %, the engine may overheat.
Antifreeze Mixing Ratio
Air Temperature Mixing Ratio
[ºC]
-1
-15
-20
-25
-30
d
CAUTION: Precautions for handling antifreeze
 Antifreeze is poisonous.
 Antifreeze is poisonous; if ingested, it can cause
serious injury or death. Induce vomiting and get
emergency medical attention immediately.
 If antifreeze is accidentally splashed into eyes, flush
with water for 10 to 15 minutes and get emergency
medical attention.
 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.
 Use attention to fire hazards. LLC is specified as a
dangerous substance in the fire protection law.
 When disposing of LLC, be sure to comply with
all local regulations. When storing or disposing
of antifreeze, be sure to comply with all local
regulations.
ZX30U-5N, 35U-5N
Antifreeze
[%]
L (US qt)
30 1.5 (1.6)
35 1.8 (1.9)
40 2.0 (2.1)
45 2.3 (2.4)
50 2.5 (2.6)
MAINTENANCE
Soft water Antifreeze
L (US qt) L (US qt)
3.5 (3.7) 2.0 (2.1)
3.2 (3.4) 2.3 (2.4)
3.0 (3.2) 2.6 (2.7)
2.7 (2.9) 2.9 (3.1)
2.5 (2.7) 3.2 (3.4)
7-63
ZX50U-5N
Soft water Antifreeze
L (US qt) L (US qt)
4.5 (4.8) 2.3 (2.4)
4.2 (4.5) 2.7 (2.9)
3.9 (4.2) 3.1 (3.3)
3.6 (3.8) 3.5 (3.7)
3.3 (3.5) 3.9 (4.1)
ZX60USB-5N
Soft water
L (US qt)
5.4 (5.7)
5.0 (5.2)
4.6 (4.8)
4.2 (4.4)
3.8 (4.0)