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Case Tractors Discussion Forum

Tire Pressure for a Case 630

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foligno

10-11-2006 04:55:08

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I have a CASE 630. The rear tires both have slow leaks. They are very old and cracked, but are ok for what I need them for. I can't read anything about PSI on them. What is the rule of thumb for it?

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jal-SD

10-11-2006 06:18:29

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Re: Tire Pressure for a Case 630 in reply to foligno, 10-11-2006 04:55:08

We've always gone by the "rule of thumb" of 1lb for each inch of tire width + 1 lb. For the 12.4 X 38's on my SC, I run about 13 lbs. Works OK for me. (My $0.02 worth. jal-SD)

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Walt davies

10-11-2006 09:04:34

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Re: Tire Pressure for a Case 630 in reply to jal-SD, 10-11-2006 06:18:29

That's nice but completely backwards. the larger a tire is the less air pressure needed.
Take those skinny little racing bike tires they use 80 to 100 PSI then look at a big ballon tire on a piece of equipment they use 3 to 5 lbs PSI.

My book calls for 12 to 14 PSI on my 18.4X30 tires on my Case LA. that's pretty standard for most tractor rear tires the front ones being much smaller use 30 to 35 lbs. PSI.
Walt

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Walt davies

10-11-2006 09:04:28

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Re: Tire Pressure for a Case 630 in reply to jal-SD, 10-11-2006 06:18:29

My book calls for 12 to 14 PSI on my 18.4X30 tires on my Case LA. that's pretty standard for most tractor rear tires the front ones being much smaller use 30 to 35 lbs. PSI.
Walt

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Foligno

10-13-2006 06:18:54

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Re: Tire Pressure for a Case 630 in reply to Walt davies, 10-11-2006 09:04:28

Thanks Walt. That helps. I will get those tires up to snuff this weekend :)

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