Product Manual

General Information
8 Owner’s Manual for Stationary Generators
Engine Oil Recommendations
To maintain the product warranty, the engine oil should
be serviced in accordance with the recommendations of
this manual. For your convenience, Generac
Maintenance Kits are available that include engine oil, oil
filter, air filter, spark plug(s), a shop towel and funnel.
These kits can be obtained from an Independent
Authorized Service Dealer (IASD).
Although the unit is filled at the
factory with 5W-20 engine
oil, replace with 5W-30 engine oil at the first oil change
which is due at 30 hours break-in. Select a high-quality
detergent oil classified “SJ or SH.” Detergent oils keep
the engine cleaner and reduce carbon deposits. After
break-in, a synthetic oil that meets or exceeds SAE
specifications is recommended. Once synthetic oil is
used, it should be used for the life of the generator. It is
not recommended to go back to a mineral oil. Do not use
special additives.
NOTE: If
not already equipped, it is strongly
recommended to use the optional Cold Weather Start Kit
for temperatures below 32°F. The oil grade for
temperatures below 32°F is 5W-30 synthetic oil.
- 20
- 4
5W-30
5W-30 w/ Block Heater
- 40
- 40
- 30
- 22
- 10
14
0
32
10
50
20
68
30
86
40
104
50
122
- 20
- 4
- 40
- 40
- 30
- 22
- 10
14
0
32
10
50
20
68
30
86
40
104
50
122
All Seasons
Arctic Conditions
º C
º F
º C
º F
Figure 2-2. Lubricating Oil Recommendations
Weather and Maintenance Kits
To keep the generator running at its peak, the following
kits are offered:
• Cold Weather Kit
– Recommended for climates with temperatures
below 32°F
• Extreme Cold Weather Kit
– Recommended Block Heater Kit for protection in
tem
peratures below 32°F
• Scheduled Maintenance Kit
– Kit includes the recommended parts to maintain
the
generator. Refer to the Service Schedule for
regular maintenance intervals.
For additional information, or to order any of these kits,
p
lease contact an IASD or Customer Service
Representative.
Coolant Water Treatment
Use of improper coolants can damage the engine cooling
system. Use demineralized water or distilled water for
best results. Hard water causes scale deposits, which
reduces cooling efficiency and raises internal
temperatures, possibly leading to engine damage. Use
an anti-corrosive to prevent rot in summer and anti-
freeze to prevent freezing in winter.
Dilute the anti-freeze based on
a theoretical temperature
that is 9-18°F (5-10°C) below the lowest temperature
expected in the area. A ratio of 40-60% is most common
range.
Freezing Point °F (°C) -13 (-25) -31 (-35) -58 (-50)
Coolant
(% Volume)
40 50
60
Water (% Volume) 60 50 40
NOTE: Use
only Peak Fleet-Charge® 50/50 ethylene
glycol type coolant (available from any IASD).
IMPORTANT NOTE: Do not use propylene glycol
t
ype coolant. Using the wrong coolant, mixing
different types of coolant, or even mixing different
brands of the correct type of coolant, can produce
unsatisfactory results, possibly leading to engine
damage.
Fuel Requirements
The Stationary Emergency Generator may be equipped
with one of the following fuel systems:
• Natural Gas Fuel System
• Propane Vapor (LPV) fuel system
Recommended fuels must have a BTU content of at least
1,00
0 BTUs per cubic foot (37.26 megajoules per cubic
meter) for NG, or at least 2,520 BTUs per cubic foot (93.8
megajoules per cubic meter) for LPV. If converting to LPV
from NG, a minimum LP tank size of 250 gallons (946
liters) is recommended. See the Installation Manual for
complete details and procedures.