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Electronic governor control for MEP 804B

kloppk

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OK
Now with S1 in START measure the DC voltage at
K15-7
K15-4

Also see if you see the K15 relay open and close as you move S1 from RUN to START and back to RUN while it's running.
 

Antonio Pena

Member
72
7
8
Location
Florida
OK
Now with S1 in START measure the DC voltage at
K15-7
K15-4

Also see if you see the K15 relay open and close as you move S1 from RUN to START and back to RUN while it's running.
K15-7 24 V
K15-4, no voltage on start
The contact dose open and close with S1 start
 

kloppk

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Based on your measurements it indicates K15 is the problem.
Odd because relays rarely fail.

What should be happening is K15-7 gets 24 volts when the engine is up to speed.
When you move S1 to START K15 closes and should pass the 24 volts on terminal 7 to terminal 4.
However you are measuring 0 volts on K15 terminal 4.
 

Antonio Pena

Member
72
7
8
Location
Florida
Based on your measurements it indicates K15 is the problem.
Odd because relays rarely fail.

What should be happening is K15-7 gets 24 volts when the engine is up to speed.
When you move S1 to START K15 closes and should pass the 24 volts on terminal 7 to terminal 4.
However you are measuring 0 volts on K15 terminal 4.
I just woke up, and started reading this before I go back to bed. Swap K 14 and K15. See if your symptoms change.
I did swap out the relays K14 with K15 same problem although when I held S1 in start I do get 120 volt to the convinces outlet
 

Antonio Pena

Member
72
7
8
Location
Florida
I swapped out relays K-15 with K-14 same problem persiste although when I hold S-1 in the start position I do get 120 volt to the convinces outlet
 

kloppk

Well-known member
Steel Soldiers Supporter
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Did you have power at the convenience outlet before you swapped the relays with S1 in START?

With the relays swapped do you get power to the outlet with S1 in START and do you lose power there when you release S1 back to run?
 
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