Cat 953 transmission drain

[ChristopherM84]

I’ve definitely learned a lot of stuff about this machine to say the least. Never owned one until the last month. I’ve been doing a full service on it and according to service manual there should be a drain hose ran to the front of the machine accessible by opening door by hydraulic reservoir. There isn’t one. Before I go through the work of dropping the belly pan and checking I thought you guys would have more knowledgeable information. Serial 44z00226. Thanks for any help.

 

[kshansen]

Attached is what I find on SIS for servicing the transmission, does not mention a drain hose.

I know it's a bad picture but this is a shot of the bottom of the transmission showing the oil pan and the drain plug. Note that the drain has a valve in it that you need a 1 inch pipe nipple to screw in to open the drain.


This is what I see in SIS so if your machine is different maybe some one can offer other hints.

 

[ChristopherM84]

Attached is what I find on SIS for servicing the transmission, does not mention a drain hose.

Thank you very much. This helps a lot. I just have to find the one inch pipe nipple tool from somewhere now.

 

[ChristopherM84]

Sometimes I just feel like a complete idiot. I was looking at wrong section and getting things mixed up

 

[ChristopherM84]

Attached is what I find on SIS for servicing the transmission, does not mention a drain hose.

I know it's a bad picture but this is a shot of the bottom of the transmission showing the oil pan and the drain plug. Note that the drain has a valve in it that you need a 1 inch pipe nipple to screw in to open the drain.
View attachment 246862

This is what I see in SIS so if your machine is different maybe some one can offer other hints.

Thank you This picture helps

 

[kshansen]

The 1 inch pipe nipple is just an ordinary piece of 1 inch pipe any hardware store would have, actual I prefer a piece of pipe about 3-4 inches long with only threads on one end, easier on the hands screwing in and out!

Be fore warned that once in a long time you can find a drain valve that is defective and oil will come out as soon as plug is removed!

 

[ChristopherM84]

Well whoever was the last person to change transmission put the drain plug in and gave it the “ that ain’t coming loose again “ treatment. Had to remove drain plug assembly. Got to see how drain valve works though.

 

[kshansen]

Well whoever was the last person to change transmission put the drain plug in and gave it the “ that ain’t coming loose again “ treatment. Had to remove drain plug assembly. Got to see how drain valve works though.

Does yours have the 3/8 inch drive hole or the 1/2 inch drive hole. Seems I recall some have the smaller drive hole and can strip out when trying to remove. When they come out like they should they work fine.

 

[ChristopherM84]

Does yours have the 3/8 inch drive hole or the 1/2 inch drive hole. Seems I recall some have the smaller drive hole and can strip out when trying to remove. When they come out like they should they work fine.

It has 1/2 drive hole. I just couldn’t t get it out. Was afraid to put big impact t on it. Oil pan for motor drain bolt wad stupid tight as well