TM 1-2840-252-23-3
G-59
Q LOAD SHARE SELECTED, Qs NOT MATCHED EXPANDED INSTRUCTIONS
Step 2.
Check harness connector PL1 (figure 201) at each DECU and P2 at each signal conditioner for tight
connection.
Step 3.
At each DECU and signal conditioner, disconnect connectors PL1 and P2 to check pins and sockets.
Step 5.
At each DECU, with PL1 disconnected and load share switch in Q position, check resistnce of load
a
share switch at harness PL1 connector sockets L and j. (figure 202). Limit is <50 . Check resistance at
sockets M and i. Limit is >150K . With load share switch in T4.5 position, check resistance at sockets L
and j. Limit is >150K . Check resistance at sockets M and j. Limit is <50 . With load share switch in
N1 position, check resistance at sockets L and i. and M and j. In each case, limit is > 50K .
1
Step 6.
Before tightening harness connectors PL1 and P2, be sure that keyway in hrness connector is aligned
a
with keyway in component connector.
Step 10.
Swap DECU locations on engines, such that DECU #1 is on engine #2, and DECU #2 is on engine #1.
Compare Q mismatch to determine if the engine with lower Q is the same engine that had lower Q
before the swap.
Step 13.
Refer to manufacturer's procedure for diagnosing and replacing harness and signal conditioner.
Step 15.
Refer to manufacturer's procedure for diagnosing and replacing harness or switch.
Step 17.
Swap DECU locations on engines, such that DECU #1 is on engine #1, and DECU #2 is on engine #2.
Refer to manufacturer's procedure for diagnosing and replacing signal conditioner.
Step 18.
Return DECU #2 to engine #2. Install replacement DECU on engine #1.
G-135