Repair
Replace Transformer Fan
1. Perform Shutdown, page 50.
2. Remove four bolts (23) and shroud (10).
3. Remove bolt (20) on top of the heater junction
box (48).
4. Disconnect fan and transformer connections
from terminal blocks. Connections are on left
sidelabeled:V+,V-,1,2,3,and4.
5. Remove four nuts (27) holding metal transformer
cover (8) to frame. Carefully remove cover while
slidingwiresthroughholeincover.
6. Remove four screws (23), washers (29), and fan
(32).
7. Install fan in reverse order.
Figure 11
66 333024N