Equipment Description; Engine Oil Recommendations; Coolant Recommendations - Generac Power Systems SG30 Owner's Manual

EQUIPMENT DESCRIPTION

This equipment is a revolving field, alternating cur-
rent generator set. It is powered by a propane vapor
or natural gas fueled engine operating at 1800 rpm
for 4-pole direct drive unit. The unit comes complete
with a sound attenuated enclosure, internally mount-
ed muffler, control console, mainline circuit breaker,
battery charger, fuel tank set and protective alarms as
explained in the following section.
All AC connections, including the power leads from
the alternator, and control connections to the transfer
switch are avail-able in the main connection box.
The generator incorporates the following generator
features:
• Rotor and Stator insulation is Class H rated as
defined by NEMA MG1-32.6, NEMA MG1-1.66.
• The generator is self ventilated and drip-proof con-
structed.
• The voltage waveform deviation, total harmonic
content of the AC waveform and telephone influ-
ence factor have been evaluated and are acceptable
according to NEMA MG1-32.

ENGINE OIL RECOMMENDATIONS

The unit has been filled with 15W-40 engine oil at
the factory. Use a high-quality detergent oil classified
"For Service CC. SD, SE, SF ." Detergent oils keep the
engine cleaner and reduce carbon deposits. Use oil
having the following SAE viscosity rating, based on
the ambient temperature range anticipated before the
next oil change:
Temperature
Above 80° F (27° C)
32° to 80° F (0° to 27° C)
Below 32° F (0° C)

Any attempt to crank or start the engine before
it has been properly serviced with the recom-
mended oil may result in an engine failure.
For temperatures below 32° F , it is strongly recom-
mended to use the optional Cold Weather Start Kit
(part number listed in the Specification Section).
The oil grade for temperatures below 32° F is 5W-
30 synthetic oil.
Standby Generator Sets
Equipment Description
Oil Grade (Recommended)
SAE 30W or 15W-40
SAE 20W-20 or 15W-40
See Note
NOTE:

COOLANT RECOMMENDATIONS

Use a mixture of propylene glycol base anti-freeze
and deionized water. Cooling system capacity is
about 8 U.S. quarts (7.6 liters). Use only deionized
water and only propylene anti-freeze. If desired, add
a high quality rust inhibitor to the recommended
coolant mixture. When adding coolant, always add
the recommended 50-50 mixture.

Do not use any chromate base rust inhibitor
with propylene glycol base anti-freeze. Engines
that have been operated with a chromate base
rust inhibitor must be chemically cleaned before
adding propylene glycol base anti-freeze. Using
any high silicate anti-freeze boosters or addi-
tives will also cause overheating. The manu-
facturer also recommends that any soluble oil
inhibitor is NOT used for this equipment.

Do not remove the radiator pressure cap while
the engine is hot or serious burns from boiling
liquid or steam could result.

Ethylene glycol base antifreeze is poisonous.
Do not use mouth to siphon coolant from the
radiator, recovery bottle or any container. Wash
hands thoroughly after handling. Never store
used antifreeze in an open container because
animals are attracted to the smell and taste of
antifreeze even though it is poisonous to them.
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DANGER