Repair
Replace Transformer Fan
1. Perform Shutdown, page 44.
2. Remov e four bolts (23) and shroud (10).
3. Remove bolt (20) on top of the heat e r junction
box (48).
4. Disconnect fan and transformer connections
from terminal blocks. Connections are on left
sidelabeled:V+,V-,1,2,3,and4.
5. Remov e four nuts (27) holding metal transformer
cover (8) to frame. Carefully remove cover while
slidingwiresthroughholeincover.
6. Remov e four screws (23), washers (29), a nd fan
(32).
7. Install fan in reverse order.
Figure 12
333024F 59
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