09/03
2-92
DC 3535/2240/1632, WC M24
5-301
Initial issue
Status Indicator RAPs
5-301 Top Cover Interlock Open
The Top Cover is open.
Procedure
Manually actuate both DADF Top Cover Interlock Switches (front/rear) at the same time. The
5-301 fault is cleared.
YN
Remove the DADF Rear Cover (REP 5.18). Close the DADF Top Cover. Less than
+1.0 VDC is measured between the DADF Control PWB P/J599-17 (+) and GND.
YN
Go to Flag 3 and Flag 4. Check the wires for an open circuit. If the wires are good,
replace the DADF Top Cover Interlock Switch (Front) (PL 20.2).
Less than +1.0 VDC is measured between the DADF Control PWB P/J599-22 (+) and
GND.
YN
Go to Flag 1 and Flag 2. Check the wires for an open circuit. If the wires are good,
replace the DADF Top Cover Interlock Switch (Rear) (PL 20.2).
Check the actuator for breakage and bending, and the Top Cover for correct installation (PL
20.2).
Figure 1 5-301 RAP Circuit Diagram - Top Cover Interlock Switch (front)
Figure 2 5-301 RAP Circuit Diagram - Top Cover Interlock Switch (rear)
Figure 3 DADF Control PWB
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