Nortel North American DMS-100 Instruction Manual page 56

1-40 Trouble locating and clearing procedures (continued)
Repairing FAN faults on an LCEI frame;
cooling unit replacement
9
At the front of the frame
10
11
At the back of the frame
12
297-8021-544 Standard 14.02 May 2001
(continued)
WARNING
Incorrect fuse values
Always use replacement fuses of the correct rating, or
damage to the equipment can result.
Check the fuses in positions one to five at the front of the cooling unit.
Replace any blown fuses. The cooling unit is at shelf position 33.
Did step 8 clear the FRAME and FAN FAIL alarm lamps?
If alarm lamps
clears
did not clear
To remove the two side trims on the LCE frame, remove the top and bottom
screws that secure the trim.
Remove the four 5/16-inch bolts that secure the cooling unit brackets (two per
side). Ensure that you remove the two center bolts from each side.
Remove the three mounting screws from the back center of the cooling unit.
Do
step 52
step 10