450() steering clutch slipping.

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Cle Elum John
440 crawler
440 crawler
Posts: 139
Joined: Thu Oct 19, 2017 5:23 pm
Location: Cle Elum, Wa

450() steering clutch slipping.

Post by Cle Elum John » Sun Sep 02, 2018 8:29 pm

One of the steering clutches on my 450() slips at high load. Mostly when the clutch on the opposite side is declutched and pulling in lo/1st. The clutch needs to be replaced but is there anything I can do to get it to lock better for the time being. I suspect the answer is "no" but I thought I would ask anyway.
John
Reporting from the Peoples Republic of Washington State.

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gregjo1948
350 crawler
350 crawler
Posts: 1000
Joined: Mon Aug 30, 2010 5:58 am
Location: Newark Valley,NY,USA

Re: 450() steering clutch slipping.

Post by gregjo1948 » Mon Sep 03, 2018 4:15 am

Be sure it's adjusted correctly. The less you try to turn, while under load, the longer it will last. When pushing straight the clutches are sharing the work but, when turning, all the work is forced upon one clutch.
JD 350B diesel 6way blade, Case 580B Loader/backhoe, Farmall 504 high crop w/ flail boom mower, International 404 , International 284 diesel w/belly mower, 1972 Ford F600 dump truck, Galion 3-5 roller, Allis Chalmers D17, 1620 Ford

Cle Elum John
440 crawler
440 crawler
Posts: 139
Joined: Thu Oct 19, 2017 5:23 pm
Location: Cle Elum, Wa

Re: 450() steering clutch slipping.

Post by Cle Elum John » Mon Sep 03, 2018 8:29 am

I looked at the adjustment. I made sure that there was throwout bearing free play. I was hoping there was some clever trick to tighten it without pulling everything. Replacing the clutches is a big job, but the dozer is still useful for the time being.
Reporting from the Peoples Republic of Washington State.

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Stan Disbrow
350 crawler
350 crawler
Posts: 2894
Joined: Fri Jul 15, 2005 3:13 pm
Location: Raleigh, NC

Re: 450() steering clutch slipping.

Post by Stan Disbrow » Tue Sep 04, 2018 4:50 am

Hi,

Until the clutch pack makes a loud screeching sound and that track goes in to neutral and then the machine winds up driving in a big circle. Guess how I know about that. ;)

If you are lucky, you can drive it back to the shop by frequently stopping and reversing and steering on the remaining track. Unless it, too, makes a loud screeching sound.....

Stan
There's No Such Thing As A Cheap Crawler!

Useta Have: '58 JD 420c 5-roller w/62 inside blade
Useta Have: '78 JD350C w/6310 outside blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)

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