dfkrug
Super Member
- Joined
- Feb 3, 2004
- Messages
- 7,178
- Location
- Santa Cruz Mtns, CA
- Tractor
- 05 Kioti CK30HST w/ Prairie Dog backhoe, XN08 mini-X
As many JD owners now know, the rear axle housings (trumpet housings) on
this series are made of cast aluminum, unlike others in this class. On my last
tractor, the ear that supports the lower 3-point hitch arm was broken off on
one side.
Well, that happened to this unit, too, but I got the tractor after it was fixed.
The left axle housing has been replaced, and JD sells you the one for the
4x10 series as an update/retrofit. It has been strenghthened, but not
in the 3-pt support area. I gather that other parts of these housings have
also failed.
In preparation for fabrication of a backhoe subframe for this tractor, I removed
the ROPS bolts and lower bracket. There is a bunch of corrosion there, which
I wanted to clean up and paint before proceding. I also wanted to replace the
bolts since they were all rusty, and 2 of them were not the OEM bolts. You
can see some of the rusty bolts in the first photo.
The OEM bolts are quite special: they are grade 10.9 with a high-strength
flanged nut. Someone swapped out some crappy grade 5 SAE
bolts/nuts/lockwashers. These are critical supports for my subframe and I
don't want to compromise here. I bought 8 new JD bolts/nuts.
Here is the top/bottom of the original housing:
Here is the top/bottom of the 4x10 replacement housing. Note the thicker
bolt bosses and base. The flared section is a bit thicker, too.
]
this series are made of cast aluminum, unlike others in this class. On my last
tractor, the ear that supports the lower 3-point hitch arm was broken off on
one side.
Well, that happened to this unit, too, but I got the tractor after it was fixed.
The left axle housing has been replaced, and JD sells you the one for the
4x10 series as an update/retrofit. It has been strenghthened, but not
in the 3-pt support area. I gather that other parts of these housings have
also failed.
In preparation for fabrication of a backhoe subframe for this tractor, I removed
the ROPS bolts and lower bracket. There is a bunch of corrosion there, which
I wanted to clean up and paint before proceding. I also wanted to replace the
bolts since they were all rusty, and 2 of them were not the OEM bolts. You
can see some of the rusty bolts in the first photo.
The OEM bolts are quite special: they are grade 10.9 with a high-strength
flanged nut. Someone swapped out some crappy grade 5 SAE
bolts/nuts/lockwashers. These are critical supports for my subframe and I
don't want to compromise here. I bought 8 new JD bolts/nuts.
Here is the top/bottom of the original housing:
Here is the top/bottom of the 4x10 replacement housing. Note the thicker
bolt bosses and base. The flared section is a bit thicker, too.
]