Themocouples are readily available at hardware stores or home improvement centers.   They're usually found on hanging cards in the plumbing/heating department. 

It sounds like the thermocouple is the culprit.  Bring the old one with you to compare with what the store carries.

OK, we'll need to wait for the SMEs to check in.  Thermocouples I'm familiar with have a lead with two spade connectors.  The arrangement on that valve is something I've never seen or dealt with before.  If it's some sort of proprietary Maytag thing, you may have trouble locating a replacement, but let's wait for others to reply here.

This part is not a thermocouple, you can not find them at hardware stores or plumbing supply houses.

It is instead a pilot safety, it has Mercury in it, the pilots heat makes the mercury expand and apply pressure on the round bellow end and this holds the gas valve open as long as the pilot stays lit, if the pilot goes out this safety will close the gas valve within 15 seconds.

The one pictured on Ebay is not exactly the same, but you can probably drill out the rivets and use it on your dryer.

These are fairly easy to install and you are unlikely to cause any gas leaks etc doing so, just check your work with a soap bubble solution if you have any concerns.

Also follow the instructions for adjusting the new safety, after you get it all working be sure to test the adjustment by blowing out the pilot and gas flow to the pilot and main burner should stop in 15 seconds or so.

John L.

That does look about right, A pilot on a gas dryer like will burn $3-6 dollars of gas a month and about twice that dollar amount if you have propane.

If you only do laundry once a week or so you are wise to turn off the gas between laundry days, both to save money and to save the damage to many dryer components that the moisture and other combustion products that the constant burning pilot causes.

John L.

Hi Robert, you just need to take the back off and see what is not turning, it is a pretty simple system.

The blower bearing could be tight, the main shaft could be tight, the best oil for either of these items would be light machine oil, multi weight motor probably would work but a lighter non-detergent machine oil is preferred.

When you move this dryer away from the wall position the dryer where you want to work on it and run it. If it is not sitting level before you remove the back panel put a shim under a leveling foot so the machine is sitting on all four feet [ it does not have to be level ] this way the drum will not be out of alignment and you can run the dryer with the back off.

Let us know what you find.

Are you fixing this dryer because you have the matching washer or are you just sentimental about this dryer ?

There are much better performing, safer and more reliable vintage gas dryers out there if you are just into great vintage appliances.

John L.

There is normally a white nylon spacer on the drum shaft before the blower goes on.

The small gap in the front felt is not bg enough to cause any problem, there is supposed to be a 1" wide tension felt band around the wide one you pictured to hold the wide felt against the rotating drum.

What was sized, the drum bearings or the blower bearings ?

John L.

The felt needs to stay in contact with the drum as it revolves so excess air cannot be pulled in around the felt and instead is pulled from the gas burner area, but it does not need to be very tight.

John L.

I am not hearing anything either, nor do I see any belts coming off.

John L.

On either an electric or gas version the heat should not cycle off at all till the clothes are nearly dry with a normal sized load, if the load is going to take 60 minutes to dry the heat should stay on for around 45-55 minutes.

A very small load may allow the exhaust thermostat to get hot enough to cycle off before the clothing is nearly dry.

If the burner is cycling 10 minutes or so into the drying cycle [ very common problem with a MT HOH gas dryer ] and possible with any dryer there could be a number of problems allowing the dryers safety thermostat to cycle.

Most common problems are long exhaust vent, clogged or restricted vent system [ the first thing to try with this problem is to try running the dryer with no vent and see how it behaves.

Common MT gas HOH problems that cause this are bad front felt seals, bad safety thermostat, worn motor pulley that is slipping, worn pulley groove on the blower pulley, replace either the motor pulley or the blower.

Of corse the dryer needs belts that are not worn out and the blower bearing should be clean and oiled and the blower housing needs to be clean.

John L.

 Supco SHL120

The operating and safety should read O ohms when they are cool, the cool-down thermostat [ TS ] should be open if the TS is less than about 120 F

John L.