Winco PSS20B2W/A, Installation And Operator'S Manual

22

60706-229/G

Reasonable care in preventative maintenance will ensure 

high reliability and a long life for the engine-generator set 

and Automatic Transfer Switch.

WARNING

When performing any type of maintenance on this 

equipment, make sure the selector switch on the engine-

generator is in the off position. If you are working in the 

Automatic Transfer Switch, confirm with a reliable meter 

that all power has been disconnected.

AUTOMATIC TRANSFER SWITCH

Clean and inspect the switch once a year. De-energize 

all power sources, both line and engine-generator set, 

then brush and vacuum away any excessive dust or 

dirt accumulation. At this time, with the conductor de-

energized, you can remove the contact covers and check 

the contacts. Make sure contacts are clean and not burned 

or pitted.

ENGINE-GENERATOR SET

Service the engine in accordance with the engine 

manufacturer’s manual provided with your new equipment. 

Routinely remove debris and dirt from around the inside 

generator enclosure. Ensure that the air intakes are free 

from leaves and other debris at all times.

Clean and inspect battery terminals at least twice a year. 

Also check the battery water level at least twice a year.

Other than keeping the generator clean and free of debris, 

there is no other routine or preventative maintenance 

required as long as the generator is run bi-weekly to keep it 

dry and in good working order.

COLD WEATHER OPERATION

Extreme cold weather operation requires special 

considerations. Higher CCA batteries are required for cold 

weather starting; 650 CCA or larger are recommended. In 

addition, you should consider installing an oil heater kit and 

a battery warmer for reliable starting during cold weather.

PREVENTATIVE MAINTENANCE