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case 430 triple range

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12-04-2006 07:53:04

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My Case 430 triple range shifter became sticky this summer, and I can no longer change gears from drive to high or low. I"ve read the service manual and want to remove the shifter cover to see if something obvious is wrong with the forks, etc. Sounds as though I can do this without any detent balls flying out, but wanted to see if anyone had advice before trying.
Thanks, Lee

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12-04-2006 14:45:41

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 Re: case 430 triple range in reply to leeinmass, 12-04-2006 07:53:04  
I have had the cover of my 630 twice. Its essentially the same as your 430.

Put the transmission in neutral!!!Take out the 4 bolts and unhook the neutral safety switch. Lift straight up on the shift rod until the shift forks clear the gears and then grab under the cover and set it aside. Take extreme care not to move the shifting rods at anytime between taking it of and putting it back on. DO NOT move any gears before taking a digital photo of them for reference. Check out the transmision and perform maintenance. Pull the drain plug from the bottom of the differentail/transmission casting if the fluid is discolored and milky. You most certainly have water in the section that could be causing the problems. Drain all fuids and flush with diesel. Replace the transmission gasket (which is still available from CaseIH). Refill the transmision with 90W gear oil. At Walmart in Houston, TX it was about $8.00 a gallon in one gallon bottles. NAPA has it in 5 gallon pails and the NAPA brand should be less that Walmart (about $39.00 for 5 gallons), if not buy Walmart. Pour the gear lube in the open transmission top, replace the gasket. Coating the gasket face or differential face with bearing grease before placing it helps keep the gasket in place and helps it seat. Position the gears as per the photo. Pick up the transmission cover taking care not to move the forks or shift rods and reposition the shifting forks on the sliding gears. Replace the bolts and snug up with your ratchet. Torque them diagonally to mfg. specidifcations and reconnect the neutral safety switch.

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Roger (Mi)

12-04-2006 18:56:34

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 Re: Triple range cover or transmission cover? in reply to JGarner, 12-04-2006 14:45:41  
Don't confuse the triple range cover and the transmission cover and the oils that go into each. They are different! The triple range cover is forward of the transmission cover, and each has a gear shift. Yes, each cover has four bolts. Regardless, each needs to have its shifter in a neutral position for removal. Not to worry! The detent ball is not going to fly out until the cover is removed and the shift rail is removed from the cover. If the shift rail needs to be removed, use a rag to cover the detent ball opening as the rail is tapped out. Otherwise, it will fly out and smack you in the head or fly to a corner of the shop to remain hidden for the next three years. The triple range cavity takes TCH hydraulic oil. The transmission cavity takes 90W gear lube.

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