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• Check the unit battery for proper electrolyte fluid
level, proper state of charge, and condition.
• With engine running, note readings of all gauges and
instruments.
RECOMMENDED ENGINE FLUIDS
ENGINE OIL
Use a high quality detergent oil having API classification
"For Service CF-4 or CG-4" or oils conforming to CCMC-
D5 or CCMC-D4 specifications.
Consider the ambient temperature when selecting the
viscosity of lubricating oil for your engine. Use the fol-
lowing chart to determine the oil you use:
AMBIENT TEMPERATURE
-40° to 30°C (-40° to 86°F)
-30° to 30°C (-22° to 86°F)
-20° to 40°C (-4° to 104°F)
-15° to 50°C (5° to 122°F)
0° to 30°C (32° to 86°F)
10° to 50°C (50° to 122°F)
API Service Certification
Multi-viscosity diesel engine oils are preferred. If
diesel fuel with sulfur content greater than 0.5% is
used, reduce the service interval by 50%.
ENGINE COOLANT
The use of coolant products, as outlined is strongly rec-
ommended.
Coolant products to use are silicate ethylene glycol base
coolants for heavy-duty diesel engines. Use when mixed
with quality water and supplemental coolant additives
(SCAs), if they meet the following specifications:
• ASTM D5345 (prediluted coolant)
• ASTM D4985 (coolant concentrate) in a 40% to 60%
mixture of concentrate with quality water.
Coolants meeting these specifications require addition
of supplemental coolant additives (SCAs), formulated
for heavy-duty diesel engines, for protection against cor-
rosion and cylinder liner erosion and pitting.
IMPORTANT:
Never use automotive-type coolants (such as those
meeting ASTM D3306 or ASTM D4656).
coolants do not contain the correct additives to
protect heavy-duty diesel engines.
contain a high concentration of silicates and may
damage the engine or cooling system.
NOTE:
OIL RECOMMENDATION
SAE 0W-30
SAE 5W-30
SAE 10W-40
SAE 15W-40
SAE 30
SAE 40
CG-4 or CF-4
They often
GR-210 Generator Set
SUPPLEMENTAL COOLANT ADDITIVES
The recommended coolant additive is John Deere's
P/N
TY16005
Conditioner.
DO NOT over-inhibit antifreeze solutions, as this
can cause silicate-dropout. When this happens, a
gel-type deposit is created which retards heat
transfer and coolant flow causing engine to over-
heat.
Operating without proper coolant additive will result in
increased corrosion, cylinder liner erosion and pitting,
and other damage to the engine and cooling system. A
simple mixture of ethylene glycol and water WILL NOT
give adequate protection.
The use of supplemental coolant additives reduces cor-
rosion, erosion, and pitting. These chemicals reduce
the number of vapor bubbles in the coolant and help
form a protective film on cylinder liner surfaces. This
film acts as a barrier against the harmful effects of col-
lapsing vapor bubbles.
Inhibit the antifreeze-coolant mix with a non-chromate
inhibitor.
Check inhibitors between drain intervals (every
600 hours or 12 months) of operation. Replenish
inhibitors by the addition of a supplemental
coolant additive as necessary. DO NOT use solu-
ble oil.
FUEL
Use clean, fresh, No. 2D diesel fuel having a minimum
Cetane Number "40" and conforming to ASTM* specifi-
cations.
*ASTM — American Society of Testing and Materials
CHECKING FLUID LEVELS
ENGINE OIL
Check engine oil level at least once daily (prior to use)
or at least every 8 hours of operation, whichever comes
first. The following rules apply:
• When checking oil level, the generator should be sit-
ting on a level surface.
These
• Always check oil level BEFORE starting the engine,
or wait at least 30 minutes after the engine is shut
down.
• Avoid mixing different brands or different types of
oil.
• The higher pressures and hotter temperatures in a
diesel engine require that you use only Class CF-4
or CG-4 oil.
Maintenance
(or
compatible)
Liquid
IMPORTANT:
IMPORTANT:
Generac
Power Systems, Inc. 15
®
Coolant
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