Service manual
1
Cooling Fan (part #12-890)
1) Disconnect the cable connector to the fan by
pressing inward on the locking tabs as you
pull the connector blocks apart.
“Hinge” open the rear enclosure panel by
removing all 3 screws from one side and
loosening the three on the other side to make
access to the nuts easier.
2) Using a 11/32” wrench and 3/32” Allen
wrench, remove the four fasteners from
the corners of the fan mount. Use care not
to drop any of the nuts down into the
enclosure.
3) Mount the new fan onto the rear panel,
and reconnect the plug and socket
connector.










