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Hi folks,
Yesterday we had a good example of a problem on a MEP 1040 where the owner @Mkestamper had gotten an error code 2967 Governor Actuator Fault. Link here to Thread
The TM's ending in -24P contain diagnostics, repair and parts manual in one document and have on average 1300+ pages
For this particular Warning Code 2967, the manual advices of checking connector, wiring harness first, then measuring coil resistance of actuator with giving a specific Ohm value with tolerance including temperature compensation for go / no go
Our friend @FarmingSmallKubota pointed out to check the TM for trouble shooting procedure that includes cleaning the tip and reinstalling, which is also a very important check.
Now lets take a look at this:
with the DCS there are two possible problems which can occur, one with and one without a DCS Code
The DCS, Digital Control System in the AMMPS have a current monitoring circuit for each output which activates a device.
Like Relays, Light, Contactors, Electrical Motors, Solenoids etc.
This is new as the the 800 Series only monitored inputs (Sensors etc) but not outputs
In our case here with the Governor Actuator, we have three possible scenarios of failure:
Two which will cause Warning Code 2967 to be displayed:
Short Circuit
Open Circuit
and one which will not create a Warning Code:
stuck or not free moveable Actuator piston
All three faults will cause the Genset to not start
The output current monitoring system was incorporated to prevent damage to the main circuit board inside the DCS.
The DCS is "non repairable" and has a price tag off app $ 13,000.00 or thereabouts
However, the output current monitoring does NOT incorporate a valid current range for a connected device, hence a actuator with a not a freely moving piston will draw a higher current current but this current is not high enough to trip the short circuit protection and display Code 2967
So the TM ending in -24P have two procedures listed for troubleshooting, with or without Code.
If you have a code on your display, then 99.99% of the time you have a electrical problem.
If you have no code on your display but your genset won't start or stay running then the problem is of a mechanical nature.
I have not come across a fault where these two statements were not correct, but there is probably an exception to this.
We will find out as time progresses.
Peter
Yesterday we had a good example of a problem on a MEP 1040 where the owner @Mkestamper had gotten an error code 2967 Governor Actuator Fault. Link here to Thread
The TM's ending in -24P contain diagnostics, repair and parts manual in one document and have on average 1300+ pages
For this particular Warning Code 2967, the manual advices of checking connector, wiring harness first, then measuring coil resistance of actuator with giving a specific Ohm value with tolerance including temperature compensation for go / no go
Our friend @FarmingSmallKubota pointed out to check the TM for trouble shooting procedure that includes cleaning the tip and reinstalling, which is also a very important check.
Now lets take a look at this:
with the DCS there are two possible problems which can occur, one with and one without a DCS Code
The DCS, Digital Control System in the AMMPS have a current monitoring circuit for each output which activates a device.
Like Relays, Light, Contactors, Electrical Motors, Solenoids etc.
This is new as the the 800 Series only monitored inputs (Sensors etc) but not outputs
In our case here with the Governor Actuator, we have three possible scenarios of failure:
Two which will cause Warning Code 2967 to be displayed:
Short Circuit
Open Circuit
and one which will not create a Warning Code:
stuck or not free moveable Actuator piston
All three faults will cause the Genset to not start
The output current monitoring system was incorporated to prevent damage to the main circuit board inside the DCS.
The DCS is "non repairable" and has a price tag off app $ 13,000.00 or thereabouts
However, the output current monitoring does NOT incorporate a valid current range for a connected device, hence a actuator with a not a freely moving piston will draw a higher current current but this current is not high enough to trip the short circuit protection and display Code 2967
So the TM ending in -24P have two procedures listed for troubleshooting, with or without Code.
If you have a code on your display, then 99.99% of the time you have a electrical problem.
If you have no code on your display but your genset won't start or stay running then the problem is of a mechanical nature.
I have not come across a fault where these two statements were not correct, but there is probably an exception to this.
We will find out as time progresses.
Peter
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