804A S5 Toggle

[Alamo Water Service]

Good day. I have a bad S5 INTERRUPTER switch. I can't find a replacement anywhere. Will part number 8906K4519 for the 803 work? TM for the 804 has part number 88-21076. Is there a good site to acquire parts? thanks

 

[155mm]

so i plugged in your part number to the SS search,

here is the results, another thread that asked the same question,

Search results for query: 88-21076

 

[Guyfang]

Alamo,

This is the wrong forum for your question. So I am going to put it in the forum it needs to be in. The Generators Forum.

 

[kloppk]

Have you tested the switch to verify it's really bad? The switches very rarely fail in these sets.

 

[Alamo Water Service]

Have you tested the switch to verify it's really bad? The switches very rarely fail in these sets.

Yes sir. I have tested S5 and it seems to be bad per the TM results. K1 contacts are not pulling in and the interrupter light works when I push it in. I pulled and tested K1 via 24vdc and it checks out. I then proceeded with the switch and got bad readings when I followed the manual. Ordered a switch yesterday so hopefully, it resolves the issue.

 

[Guyfang]

Look at the schematic and check that the diode on the switch was in the right position. It can ONLY be installed one way.

 

[Alamo Water Service]

Look at the schematic and check that the diode on the switch was in the right position. It can ONLY be installed one way.

View attachment 892431

I don't have a diode on my switch. just looking in there I see one on K21. Maybe it is jumpered elsewhere?

 

[Alamo Water Service]

Look at the schematic and check that the diode on the switch was in the right position. It can ONLY be installed one way.

View attachment 892431

This is what I see. Maybe i have the wrong schematic

 

[kloppk]

You have the correct schematic. The diode CR3 is not on S5. It's mounted on the component panel in the far back left.

Guy had 802/803 on the brain when he posted his S5 wiring pic.

Component panel...

 

[Alamo Water Service]

You have the correct schematic. The diode CR3 is not on S5. It's mounted on the component panel in the far back left.

Guy had 802/803 on the brain when he posted his S5 wiring pic.

Component panel...
View attachment 892439

Thanks, I found them. All are in the same direction grey side to the left. Ill have to look closer in the morning when light. Thanks a bunch for the support!

 

[Guyfang]

How did I do that? Like a lame horse, I need to be shot.

 

[loosegravel]

How did I do that? Like a lame horse, I need to be shot.

“No matter how hard we try, the best that we can do is to be human “

 

[robertsears1]

Have you ever seen this genset work correctly?

 

[Alamo Water Service]

Have you ever seen this genset work correctly?

Not yet...When I got it the genset it didn't run. After cleaning the tank, a couple of new hoses, and installing a new pump with an injector block cleaning it runs great now. I then proceeded with testing the generator. It runs with no faults and has 120/208 readings on gauges and one side of the contacts. I have readings before the output terminals, just not at the output terminals. I pushed the interrupter button and it lit up. When I close the interrupter switch nothing happens (contacts don't engage). I pulled the contacts and it tested good (contacts pull in with 24v and have .3 ohms across the contacts). I then proceeded with the interrupter switch testing. Pulled it and tested per TM and got bad readings. Apologize for the long story lol.

 

[Guyfang]

Not yet...When I got it the genset it didn't run. After cleaning the tank, a couple of new hoses, and installing a new pump with an injector block cleaning it runs great now. I then proceeded with testing the generator. It runs with no faults and has 120/208 readings on gauges and one side of the contacts. I have readings before the output terminals, just not at the output terminals. I pushed the interrupter button and it lit up.
What do you by mean, "I pushed the interrupter button and it lit up" Do you mean you pushed the DS-7, (AC interrupter light?) and the press to test function lit the light up?

When I close the interrupter switch nothing happens (contacts don't engage). I pulled the contacts and it tested good (contacts pull in with 24v and have .3 ohms across the contacts). I then proceeded with the interrupter switch testing. Pulled it and tested per TM and got bad readings. Apologize for the long story lol.
Long stories are better. More info.

 

[Alamo Water Service]

Not yet...When I got it the genset it didn't run. After cleaning the tank, a couple of new hoses, and installing a new pump with an injector block cleaning it runs great now. I then proceeded with testing the generator. It runs with no faults and has 120/208 readings on gauges and one side of the contacts. I have readings before the output terminals, just not at the output terminals. I pushed the interrupter button and it lit up.
What do you by mean, "I pushed the interrupter button and it lit up" Do you mean you pushed the DS-7, (AC interrupter light?) and the press to test function lit the light up?

When I close the interrupter switch nothing happens (contacts don't engage). I pulled the contacts and it tested good (contacts pull in with 24v and have .3 ohms across the contacts). I then proceeded with the interrupter switch testing. Pulled it and tested per TM and got bad readings. Apologize for the long story lol.
Long stories are better. More info.

That's what it's called. The test function light. I had pushed that in and it did light up.

 

[Alamo Water Service]

That's what it's called. The test function light. I had pushed that in and it did light up.

So just to update, I changed the S5 interrupter switch and now I have voltage at the output terminals. Green light on. thank god, didn't really want to start cutting zip-ties to trace wires in that wire forest lol. The last question I have is how long do you typically have to hold the start switch during start-up for the interrupter switch to engage? Thanks for the support

 

[Guyfang]

All sets differ a bit. I held up the S1 until the volts and hertz came up to rated level.

Why would you have had to cut wire ties and trace wires? The schematics are all you need to trace wire.

 

[Alamo Water Service]

All sets differ a bit. I held up the S1 until the volts and hertz came up to rated level.

Why would you have had to cut wire ties and trace wires? The schematics are all you need to trace wire.

Just a little exaggeration. I like to verify wiring from point A to point B. Never know if someone was in their landing wires to the wrong terminals. I would however start with the P&ID and meter.