450c new trans

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ryan71407
40C crawler
40C crawler
Posts: 23
Joined: Tue Apr 04, 2017 5:43 pm

450c new trans

Post by ryan71407 » Mon Nov 13, 2017 8:38 pm

So I bought a doZer that had a new transmission, new everything inside including clutch packs, seals driveshafts and all bearings. Parked it after that and never used it , fallout with family. Sat outside for 10 years uncovered. Drained all the fluids, probably a gallon of water came out bottom. Ran fine, changed oil and adjusted clutch lever. After that never ran the same, checked pressure with guage getting 60 psi. Where do I start to troubleshoot it. It pulled fine until they adjusted clutch now it barely goes in slow in 1 lo.

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amos
420 crawler
420 crawler
Posts: 41
Joined: Thu Aug 11, 2016 7:29 am

Re: 450c new trans

Post by amos » Sat Nov 18, 2017 10:39 am

Not an expert by any means but it sure sounds like clutch is slipping. Run for a little while in 1L and check for that infamous burning clutch smell.I'd also drop the belly pan and check the weep hole right behind the engine block and see if it's clear and if not ,clear it and see if oil is running out(oil contaminated main clutch).And how did water get into tranny? Should be sealed for water contamination as it's a dozer that can be stored outside.

ryan71407
40C crawler
40C crawler
Posts: 23
Joined: Tue Apr 04, 2017 5:43 pm

Re: 450c new trans

Post by ryan71407 » Mon Nov 20, 2017 12:11 pm

Not sure how water got in it, sure just from rain and condensation seeping in. Well I got it working perfect,was the main clutch was out of adjustment. Works like a dream now.

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NWJD fan
440 crawler
440 crawler
Posts: 109
Joined: Wed Apr 13, 2011 10:19 pm
Location: Dease Lake B.C.

Re: 450c new trans

Post by NWJD fan » Mon Nov 20, 2017 11:45 pm

If you live in an area where the temp changes significantly from near freezing to 40's low fifties in spring and fall you will collect water in transmission from condensation. In NW British Columbia where I live my crawlers accumulate +/- a quart of water a year in transmission if not drained. Final drives which are not vented accumulate nothing.

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Stan Disbrow
350 crawler
350 crawler
Posts: 2114
Joined: Fri Jul 15, 2005 3:13 pm
Location: Raleigh, NC

Re: 450c new trans

Post by Stan Disbrow » Tue Nov 21, 2017 5:21 am

Hi,

Yup. Heating and cooling causes breathing. Water enters as vapor during cooling, then condenses, and....never leaves.

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

Have: 1958 JD 420c 5-roller w/62 blade
Useta Have: '68 JD350 & Terratrac GT-25
Also Have: 1950 M, 2008 5103 (now known as 5045D)

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amos
420 crawler
420 crawler
Posts: 41
Joined: Thu Aug 11, 2016 7:29 am

Re: 450c new trans

Post by amos » Tue Nov 21, 2017 5:49 am

And again I learned something! I'm in Texas and on a BAD winter we might get a day or two in the 20's.Normally a few hours below freezing a few days a week and that's about it. Glad to hear it was just a clutch adjustment too.

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