Mitsubishi Heavy Industries L2 User Manual

Chapter 6 COOLANT
6-4
Circulation metalic
causticity (98 ±
2°C[205 to 212°F]、
1000 Hr、30 vol %
(E.G), 50 vol %
(P.G)
Test piece
Mass change
Aluminum, Cast
iron, Steel, Brass,
Solder, Copper
±0.30 mg/cm
2
External of test piece after the
examination
Not corrosion on surface excluding
between test piece and spacer. Discolora-
tion is OK.
Properties of
liquid after the
examination
pH 7.0 to 9.0
pH change ±1.0
Pre-alkalinity change
±15 ％
Precipitation Maximum 1.0 vol %
External of liquid
Not remarkable discoloration, separation
and gel.
Density of
ion
Fe, Cu, Al, Zn, Pb,
NH
4
+
Maximum 10 ppm
Circulation metalic
causticity (88 ±
3°C[185 to 196°F]、
1000 ± 2 Hr、30
vol % (E.G)
Test piece
Mass change
Aluminum
±0.60 mg/cm
2
Cast iron
±0.30 mg/cm
2
Steel
±0.30 mg/cm
2
Brass
±0.30 mg/cm
2
Solder
±0.60 mg/cm
2
Copper
±0.30 mg/cm
2
External of test piece after the
examination
Not corrosion on surface excluding
between test piece and spacer. Discolora-
tion is OK.
Properties of
liquid after the
examination
pH 6.5 to 11.0
pH change Maximum ±1.0
External of liquid
Not remarkable discoloration, separation
and gel.
Condition of
parts
Pump seal Not trouble while the examination
Inside of pump case and blade Not remarkable corrosion
Table 6-2 LLC specification
Property Limit

Mitsubishi Heavy Industries L2 Specifications

General

Brand	Mitsubishi Heavy Industries
Model	L2
Category	Engine
Language	English