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Discussion Forum

F-12 oil change

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07-15-2001 15:40:31

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Help! Our local IH dealer can't find a copy of an operator's manual for a 1935 F-12. I want to change the tranny oil but don't know how, where, and what kind of oil. And I drained the engine oil and can't figure out where to put the oil in or how much. Sorry about teh question's but I am quite new to this.

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Bob Kerr

07-15-2001 20:46:16

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 Re: F-12 oil change in reply to Scott, 07-15-2001 15:40:31  
I have a 35 f-12 also. I need to change the trans and axle lube also. My book says to use SAE-160 gear lube in summer and 90 in winter. I would go with the 160!140 and 160 are available but you may have to call around to find it. I got my oil at a Car Quest auto parts store in Cicero IN. They had it in stock! The book also says to wash out the trans drain old gear oil and fill trans with kerosene and operate in low gear with no load for 1 minute. I would also do all of this on a nice HOT day and leave the tractor sitting out in the sun for a few hours to help heat up the old oil.A quick drive down the road in high gear might not hurt either before draining out the old gooy stuff. When I drained out the oil on my 10-20 the stuff was so thick it took 3 days to stop dripping out. If the rear bearings were greased a lot there will be a bunch of thick grease in with the gear oil. I guess I was lucky as far as water goes. There was not one drop of water in the gear cases and my 10-20 sat outside for 30-40 years.

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Ralph Thomason

07-15-2001 20:27:15

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 Re: F-12 oil change in reply to Scott, 07-15-2001 15:40:31  
Scott, There are two drain plugs on the transmission, a little plug in front and the main one in back if memory serves me right.It uses a mineral base 90W oil.Ralph

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Bill B

07-15-2001 16:16:44

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 Re: F-12 oil change in reply to Scott, 07-15-2001 15:40:31  
third party image

This is a confusing one. I have the book, and I have the 1935 lube chart, and it is printed wrong, as the numbers on the arrows pointing to lube points is not the same as the numbers on the corresponding chart. Anyway, the drain plug is on the bottom of the trans. The fill plug seems to be on top, right in line with the rear axels. The oil level plug is under the front of the trans. Fill until it runs out of the oil level plug. If this dont make sense, and nobody smarter answers by tomorrow, I will go to the shed and look at my F12. The specs for the oil are 2 paragraphs long, as they did not have the same numbers that we now use. I suspect 90 weight gear oil will be fine. The engine fill is a big cap at the left front of the engine, with wings on it like a thumb screw. Fill with oil until it runs out the top test cock on the side of the oil pan. Make sure the test cock is not stuck with dirt, or you will put in 5 gallons by mistake. A wire poked in the hole will help. A new oil filter is a good idea.

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07-15-2001 16:11:02

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 Re: F-12 oil change in reply to Scott, 07-15-2001 15:40:31  
First, you can get the users manual, parts manual and service manual all via this site, or at Rice Equipment: 814-226-9200.

The tranny oil goes into the hole under and just in front of the driver's seat. I used 120w-90. Five gallons at Pep Boys was about $25. Manual says to put in four.

By the way, when you drain it, expect anywhere from 5 to 15 gallons to come out. Water gets in over the years and adds to the oil. It will probably come out coffee colored as a result. 15 gallons is a lot of oil to dispose of. Can surprise you.

Engine oil goes into a fitting between the magneto and the radiator. Unless you have cleaned out the engine, use non-detergent oil (so it doesn't loosen the crud and clog everything). I got that at Pep Boys too. Cheapest oil they had. Fill oil until it runs out the top petcock mounted on the oil pan. Or, just put in 5 1/2 quarts. Manual calls for 30w. Rice has oil filters. It goes into that dome shaped fitting on the other side of the magneto.

Rice is a good source of parts. Call him.

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