Generac Power Systems MAC400HC, Owner'S Manual

Page: 12 / 40

8 Owner’s Manual for Flameless Heat Cart
General Information
Emissions Information
See the diesel engine manual for more information.
Engine Oil Recommendations
NOTE: Certain brands/types of oil can be used regard-
less of specified API or ACEA grade.
Change oil and oil filter at least once every 12 months,
even if the hours of operation are fewer than the other-
wise recommended service interval. See the diesel
engine manual for recommended oil types.
Selection of Viscosity
The chart below shows appropriate oil types according to
ambient temperature.
Figure 2-3. Engine Oil Viscosity Chart
Coolant Recommendations
Use of improper coolants can damage the engine cooling
system. Use demineralized or distilled water for best
results. Hard water causes scale deposits, which reduces
cooling efficiency and raises internal temperatures,
possibly leading to engine damage.
The cooling system should be drained after engine oper-
ation in areas where the atmospheric temperature falls
below freezing. The use of antifreeze solution is highly
recommended to eliminate the need for repeated drain-
ing and refilling. Follow these antifreeze/water guidelines:
• A 50/50 ethylene glycol base antifreeze/water mix,
which provides protection to -34 °F (-37 °C), is
recommended for use in this engine.
• Never exceed a 60/40 antifreeze/water mix, which
provides protection to approximately -58 °F (-50
°C).
• Coolant must be nitrite free and meet the perfor-
mance standards of ASTM D6210.
NOTE: Recommended coolant is ZEREX™ Nitrate Free
Extended Life Antifreeze/Coolant.
Test coolant yearly, or every 1000 hours, whichever
comes first. See the diesel engine manual for more infor-
mation.
Fuel System
The engine is designed to use either Number 1-D or
Number 2-D diesel fuel.
• Use Number 2-D diesel fuel whenever possible for
better fuel economy.
• Use Number 1-D or a winterized blend at tempera-
tures below 20 °F (-7 °C) (check with the service
station operator to verify the fuel is properly
blended).
The following are required for diesel fuel:
• Must be free from dust particles.
• Must have adequate viscosity.
• Must have high cetane value.
• Must have high fluidity at low temperature.
• Must have low or ultra-low sulfur (ULSD) content
EPA requirement; varies by geographic location.
• Must have little residual carbon.
Grade Type
API CE, CE, CF, CF-4, CH-4, CI-4, CI-4 plus
ACEA A3/B3, A3/B4, A5/B5, E2, E3, D4, E5, E7
JASO DH-1
(000149)
DANGER
Risk of poisoning. Do not use mouth to siphon
coolant. Doing so will result in death or serious
injury.
(000168)
DANGER
Explosion and Fire. Fuel and vapors are
extremely flammable and explosive. Keep fire
and spark away. Failure to do so will result
in death or serious injury.
(000204)
DANGER
Explosion and Fire. Do not overfill fuel tank.
Overfilling may cause fuel to leak and ignite
or explode, resulting in death or serious injury.