Help with 400x Leakdown

Tx Jim · May 1, 2012

jimjo2 said:
I complained to my JD dealer and was told that Deere accepts up to a 7" drop per hour leak rate through the cylinders.

7"s per hr seems like a lot. I think JD is using that to escape some warranty issues. There's really no excuse for a good spool valve & cylinders to leak that much especially with no load in the bucket.

AKfish · May 1, 2012

Tx Jim said:
7"s per hr seems like a lot. I think JD is using that to escape some warranty issues. There's really no excuse for a good spool valve & cylinders to leak that much especially with no load in the bucket.

Amen.. 370 hours and having to constantly adjust the loader when working in the field?!!?

That ain' right!

AKfish

nikdfish · May 1, 2012

From the chart I saw on maximum acceptable leakdown rates, the largest numbers for the 400x on a 4000 series tractor were 2.4 inches per hour on the boom & 5.10 inches per hour on the bucket (curl I assume...).

FWIW

Nick