Generac Power Systems 004877, Owner'S Manual, Page: 29 / 44

Maintenance
Integrated Load Center Owner’s Manual 25
Section 5: Maintenance
Operate Transfer Switch
Operate the transfer switch at least once a month. This
can be done by performing a normal test of the system.
The system test switch only simulates failure of the utility
power source, therefore, service will be interrupted only
during the actual transfer of the load.
Clean and Inspect Transfer
Switch
Protect the transfer switch against construction grit, metal
chips, excessive moisture, and other harmful dirt at all
times. At least once a year, turn off all power supplies to
the switch, then brush and vacuum away dust and dirt
that has accumulated inside the enclosure. After
cleaning, inspect the transfer switch carefully. Look for
evidence of arcing, burning, hot spots, charring, and
other damage. If any of these are found, have the switch
assembly checked by an authorized service technician.
Main Current Carrying Contacts
At least once annually, have an Independent Authorized
Service Dealer (IASD) check the main current carrying
contacts in the transfer mechanism. They will repair or
replace major components that have been found
defective.
Twelve-Volt Batteries (Two)
The batteries in this transfer switch are of the
rechargeable lead acid type. Replace with Generac part
#0D2568, Panasonic catalog no. LC-R12R3PU, or
equivalent every three (3) years.
After replacing batteries, be sure to tape thermistor back
in place for proper battery charger operation.
Lubrication
Operating parts inside the transfer mechanism have
been properly lubricated at the time of assembly. Under
normal conditions, no additional lubrication should be
required. The service technician should lubricate all
recommended points whenever major transfer
mechanism components are replaced.
NOTE: Use only specified greases to lubricate contactor
parts. DO NOT USE ANY SUBSTITUTES.
A table of recommended lubricants is provided below.
TABLE 1. Recommended Lubricants
Contactor Part Description Recommended Lubricants Manufacturer
Main Contacts Between movable
contact and bus bars
• Rheolube 363 • Nye Lubricants, Inc., USA
Operating
Mechanism Actuator and other
parts of the
contactors. Does not
include movable
contacts
• Mobilgrease 28
• Mobiltemp SHC 32
• Polo Moly Complex Grease #NLG12
• Dow Corning (Molykote) BR2 Plus
• Mobil Oil Co., USA
• Mobil Oil Co., USA
• Polo Lubricants, USA
• Dow Corning Co., USA