DREDnot
Well-known member
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- Phoenix, AZ
Making progress on my M1078(A0) Frankenharness.
Got power flowing. Warning buzzer fully functional....
Master power gets fuel solenoid to clunk. Trans control powers up with N-N showing. Pressing start switch clicks the relay but no crank.
a couple months ago I Jumped the starter and it cranked and ran on ether so Im pretty sure the starter is OK.
Im trying to figure out the proper function of the AUX solenoid...
![DSCN0034.jpg DSCN0034.jpg](https://www.steelsoldiers.com/data/attachments/529/529864-a0e6b75e8e439a442c22ba1fed449ca5.jpg)
It seems like its purpose is to serve power to the TL26 lug of the starter and signal STE/ICE about it.
The starter relay should send 24V to the TL33 lug to energize the solenoid and send power from the TL9 lug to the TL24 lug that takes power to the TL26 lug to engage the starter....correct?
And these mystery wires...
![DSCN0043.jpg DSCN0043.jpg](https://www.steelsoldiers.com/data/attachments/529/529866-3d8d93b670f1b3f63188077014238fbb.jpg)
Im pretty sure these are the leftovers from the P81 thermal cutout from the early starters.
This starter doesn't have the thermal switch.
Do these need to be connected to provide a ground for the AUX solenoid to allow a start?
Got power flowing. Warning buzzer fully functional....
Master power gets fuel solenoid to clunk. Trans control powers up with N-N showing. Pressing start switch clicks the relay but no crank.
a couple months ago I Jumped the starter and it cranked and ran on ether so Im pretty sure the starter is OK.
Im trying to figure out the proper function of the AUX solenoid...
![DSCN0034.jpg DSCN0034.jpg](https://www.steelsoldiers.com/data/attachments/529/529864-a0e6b75e8e439a442c22ba1fed449ca5.jpg)
It seems like its purpose is to serve power to the TL26 lug of the starter and signal STE/ICE about it.
The starter relay should send 24V to the TL33 lug to energize the solenoid and send power from the TL9 lug to the TL24 lug that takes power to the TL26 lug to engage the starter....correct?
And these mystery wires...
![DSCN0043.jpg DSCN0043.jpg](https://www.steelsoldiers.com/data/attachments/529/529866-3d8d93b670f1b3f63188077014238fbb.jpg)
Im pretty sure these are the leftovers from the P81 thermal cutout from the early starters.
This starter doesn't have the thermal switch.
Do these need to be connected to provide a ground for the AUX solenoid to allow a start?