Machine Operation & Maintenance

[dapaq2]

Hello Mike.

I am sorry, I should have been more specific on what I was asking. I already knew AMOT was/is the original manufactuer of that part. I was just wanting to know what the actual name of the company is vs just knowing the abbreviation? What is AMOT and do you have a website address for AMOT? Yes, I would like to try contacting them and see what my options are (if any) We are not sure yet if the pilot valve is the cause or if it is the contactor switch but we should have an answer in a few weeks. Have not had time to get out there and do more troubleshooting. If the cause to our shut down issue is the either of these devices we will need to try and locate a new one, or a used one in good working condition.Thank you,

P.S. I am very surprised that no one else has jumped in on this thread. Is this message board/forum that dead or get very little use or is no one else interested in getting involved on helping or putting their 2 cents in? Im not complaining, I am just curious, because I thought more than one person would have jumped on the band wagon by now. This engine and locomotive application must be an oddball situation to you Cat guys I guess and no one else must know what to say... Oh well, Anyway once we have a chance we will take a look at those two devices.

Doug

[mikel]

Doug,

Here is a link,

http://www.amot.com/products/pneumatic-instrumentation/temperature-sensing-valves

Can't answer why no one else has chimed in, but not too many people, at least in my experience, have dealt with the HMSO system to any degree.

You may or may not have a contactor, couldn't find one on the as shipped consist for the engine, but the locomotive packager may have added one.

Temporarily plumb a 1/4 turn valve in place of the pilot valve to test, or go to Goodwill and buy a cheap used fryer and get a thermometer and pull out the pilot valve and test it under actual conditions.  Just remember, the pilot valve is NOT a quick acting device, so bring the temp up slowly and pause for a few minutes, this will allow the valve body and the wax element to heat up properly.

Mike L.

[dapaq2]

Mike,

Thank you for the AMOT information.

I bypassed the valve last week and I have done some initial testing and I am about 98 percent sure that the pilot valve is the culprit. I ran out of time and until I can get the time to go there and do some further final testing I am not going to officially declare it as the problem. I will let you know once I have had a chance to check it out further. Thank you for your help.

Doug

[dapaq2]

The Thermostatic Pilot Valve was the cause of the shut down issue. Thank you for all your help Mike.

Doug

[mikel]

No worries, good luck with your choo-choo!

Mike L.