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Author Topic: 540A Front Axle damage  (Read 1952 times)

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Offline teakwood

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540A Front Axle damage
« on: January 03, 2019, 04:39:56 PM »
In 2014 i had the front axle disassembled and noticed some damage on the attack pinon.



it worked fine like this for 400hours, today i noticed a strong bang like every 7 seconds and it changed its rhythm between gears and it was just under load. so i had a suspicion.
After getting the front axle out i took some pics. the small pinon is a little more damaged but the worst is the tooth missing in the big gear, thats where the sound came from.
Can anybody help me out where i should look for a new set of pinons? i am sure OEM deere will cost a fortune, if available. Is there any good aftermarket brand or place where i can get one, or should i look for used ones??
Please help. And of course i'm logging right now and need the skidder.




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Offline teakwood

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Re: 540A Front Axle damage
« Reply #1 on: January 03, 2019, 05:49:54 PM »
Part number is RE18890 or the new number seems to be AR61125, i could not find much yet, still searching
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Offline Southside

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Re: 540A Front Axle damage
« Reply #2 on: January 03, 2019, 05:57:25 PM »
I realize this is vague but there is a guy up in British Columbia who has a lot of JD salvage parts. I bought an IP from him for my 540A several years ago. He does have a website, but not everything was listed on there. I will see if I can find it again. His prices were very reasonable and I actually got what I paid for. 
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Offline dnash

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Re: 540A Front Axle damage
« Reply #3 on: January 03, 2019, 06:12:13 PM »
I realize this is vague but there is a guy up in British Columbia who has a lot of JD salvage parts. I bought an IP from him for my 540A several years ago. He does have a website, but not everything was listed on there. I will see if I can find it again. His prices were very reasonable and I actually got what I paid for.
Wally’s Used Parts

I have had good luck with him as well.

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Offline Riwaka

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Re: 540A Front Axle damage
« Reply #4 on: January 03, 2019, 06:12:44 PM »
Teakwood - you might need to look in the areas where that sized skidder was round/ still being run.
e.g
j-kequipment.com

Offline teakwood

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Re: 540A Front Axle damage
« Reply #5 on: January 03, 2019, 06:42:51 PM »
Thanks alot guys, i wrote to several but no luck yet. 
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Offline Riwaka

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Re: 540A Front Axle damage
« Reply #6 on: January 03, 2019, 07:29:22 PM »
Air freighting?  - do you have some idea of what works best?

I see there is a direct NY, US to San Jose, CR flight (for a US east coast solution),(and Atlanta, Georgia direct too)as against the connecting flights and freight going missing. etc

Offline teakwood

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Re: 540A Front Axle damage
« Reply #7 on: January 03, 2019, 07:44:34 PM »
the freight is no problem, i have great experience with some freight forwarders/importers. I just ship to a direction in Miami and they do the rest. air freight is expensive but will get me the parts here in say 4-5 days 
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Offline kiko

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Re: 540A Front Axle damage
« Reply #8 on: January 03, 2019, 08:04:53 PM »
Meridian Implement shows to have the ar61125 in stock. However they do not specify John Deere so it could be different part same part number. You will need pinion bearing and bushings seals and such. The pinion looks to have been moving as it has been hitting the carrier housing.

Offline kiko

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Re: 540A Front Axle damage
« Reply #9 on: January 03, 2019, 08:09:48 PM »
Part number search through Machinery Trader .

Offline teakwood

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Re: 540A Front Axle damage
« Reply #10 on: January 03, 2019, 08:50:57 PM »
Thanks kiko.
Machinerytrader has nothing.

a Email from papetrucks,
RE18890 changes up to the following part numbers: AR61125, RE50113, R45132 & R53771.  AR61125 is available in Wisconsin, RE50113 is in stock in Georgia and R53771 is located in Oregon.  R45132 Washer is an obsolete part.

the quote
1 AR61125 GEAR 976.14
1 RE50113 SHIM 261.89
1 R53771 NUT      9.38 
Total 1247.41 and that is without shipping, i will keep looking.

What is that expensive shim for? i can use the old shims or is that a special part? am i right in assuming that the AR61125 Gear is both, gear and pinion? 

I am mechanically inclined and i like it but have never repaired such pinions. can anybody explain me what backlash and preload is? what else do i have to take in consideration? 
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Offline Maine logger88

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Re: 540A Front Axle damage
« Reply #11 on: January 03, 2019, 08:59:21 PM »
Seems like when i was thinking about putting a new ring and pinion in my 540b it wasnt all that much money randy at harrolds logging could get them at the time and probably still can. I thought it was around 700 bucks for a ring and pinion. I ended up just putting my old one back in cause it was just pitted 
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Offline kiko

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Re: 540A Front Axle damage
« Reply #12 on: January 03, 2019, 10:17:37 PM »
I cannot find re50113 anywhere on the 540a . It is a good part number but shows to be a belt idler pulley.

This is the minimum parts list I would think you need.
Jd8970 bearing cone
Jd8264 bearing cup
Jd8240 bearing cup
Jd8907 bearing cone
R37410 seal
A45401R o ring
AR61125 bevel gear set(crown and pinion)
R37464 washer
R53771 nut

Offline teakwood

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Re: 540A Front Axle damage
« Reply #13 on: January 04, 2019, 01:29:53 AM »
thanks kiko. the oring and seals i can get here, probably alot cheaper than OEM. Do you think i need to change all the bearings? they seem to be in very good shape. Bearings i can buy them here also, unless they are some kind of a special dimensions. 
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Offline teakwood

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Re: 540A Front Axle damage
« Reply #14 on: January 04, 2019, 06:38:05 AM »
The pinion looks to have been moving as it has been hitting the carrier housing.


I saw that too but that must have been happened long before my time. all bearings are fit tight and have no play.
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Online snowstorm

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Re: 540A Front Axle damage
« Reply #15 on: January 04, 2019, 07:14:28 AM »
 the grindings went through the bearings and the hydraulic system if it was the front diff

Offline tacks Y

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Re: 540A Front Axle damage
« Reply #16 on: January 04, 2019, 07:35:55 AM »
Changing all bearings is cheap insurance. What else ran the same axle  440A?

Offline kiko

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Re: 540A Front Axle damage
« Reply #17 on: January 04, 2019, 09:15:00 AM »
You can unbolt the pinion housing and remove it from the front. Remove the axles from the center housing in order to remove the carrier housing to replace crown gear. Setting the preloads is not complicated. It will be done on reassemble.  We should get into that when you get to that point. Just make sure you keep the carrier bearing shims in the original location on disassembly.

Offline ohiowoodchuck

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Re: 540A Front Axle damage
« Reply #18 on: January 04, 2019, 11:23:38 AM »
Does the front face of the pinion on skidder and such have the +2 or-4 number. The number can be any but it gives you the centerline of the pinion  say your old pinion says +2 and your new one is +4 then you would need to take out .002 of shims. On your bearing preload you want to tighten the pinion to the the specified torque then use a inch pound torque wrench with a dial and put the torque wrench with the socket on the pinion  nut and rotate it with the torque wrench. New bearings and races should be around 14 inch pounds old should be around 8 inch pounds. I've done a lot of setups in vehicles but never done a skidder or equipment  it should be the same or close I would think. 
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Offline ohiowoodchuck

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Re: 540A Front Axle damage
« Reply #19 on: January 04, 2019, 11:27:02 AM »
Also you can try schaffers in Illinois or hurricane truck sales in west Virginia for a ring and pinion. 
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Offline teakwood

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Re: 540A Front Axle damage
« Reply #20 on: January 04, 2019, 07:49:51 PM »
the grindings went through the bearings and the hydraulic system if it was the front diff

not really because the oil is trapped in the front diff. just if you actuated diff lock oil is returning to the hyd system and i don't use the lock much 
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Offline teakwood

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Re: 540A Front Axle damage
« Reply #21 on: January 04, 2019, 08:02:53 PM »
Just make sure you keep the carrier bearing shims in the original location on disassembly.

Every thing is cleaned and photographed and in order to go back in it's original order. by reading the jd technical book and youtube vids i know now what the pinion shaft rolling torque is.
planetarys and brakes look perfect. Bearings and cones also look like new, is there a way to tell if they are damaged?


 the shims


 


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Offline nativewolf

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Re: 540A Front Axle damage
« Reply #22 on: January 06, 2019, 09:47:27 AM »
Hey just remembered that you had a potential deal to manage and maintain a fancy niche German skidder.  Did that ever get finalized?  I've been reading and learning more and more about CTL and have been impressed that waratah and others have dedicated Eucalyptus heads.  Obviously working the tropics and seems to make so much sense for the teak plantations..  Just something for you to think about on your way to becoming a mining/teak magnate.  Cheers from the chilly north.
Liking Walnut

Offline teakwood

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Re: 540A Front Axle damage
« Reply #23 on: January 06, 2019, 07:45:15 PM »
Hey just remembered that you had a potential deal to manage and maintain a fancy niche German skidder.  Did that ever get finalized?


Funny and sad story behind that: the work was planned for October/November. The Skidder/Forwarder came in to Costa Rica mid August and is hold back by customs since then!  
Never was there such a machine imported to CR so it's not listed in any category of import goods. Customs says that is has to be imported as a road truck with 25% of import taxes and the company who ones it is fighting to import the machine as a forest/ag tractor (which the machine actually is!!!!) with 4% taxes. the difference is just like 40k!  
The company has every right to fight the lower tax and has started with lawyers a everything whats in the book, now they try on a political approach because it's a pretty good sizes firm with lots of employees and some importance for the country.  
It's absolutely typical for Costa Rica to have such a thing happen and it makes me furious how corrupt some public departments are. one guy on the trigger there is trying to get 3-5k out of the deal! and the company is banned to have a 500k+ machine sitting in customs for 4 month and has their hands tied.

The CEO's assistant called me at the end of December and ask how my time was for January/ February, but now i', logging myself and we will have to see how i can split my time to still help them out.  
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Re: 540A Front Axle damage
« Reply #24 on: January 06, 2019, 08:13:17 PM »
Just something for you to think about on your way to becoming a mining/teak magnate.  Cheers from the chilly north.


your funny!  My plantations are way too small to ever have any importance in the market, nether will a processor or some other expensive machine make sense for my size. Just some acres to go in my senior days and play around with 1-2 trees a day and have my living retirement plan growing. I enjoy my "woods".

The mining permit did a big step forward, 1.5 years hold off in just one institution, i kind almost gave up, but as a nice cristmas gift i obtained the "approval of environmental sustainability for the mine", lets call it that way. you need 69 steps/papers to open a quarry in CR and i'm at the 69th step now , 5 years inn and still at least another half year to go!
But that's about it with the good news for me, i'm having a bad bad start in to 2019. The skidder broke down and it will cost some $ to fix it. Thanks to everyone who has helped me out, specially to Bargemonkey who is calling around for me! i'm proud to be part of such a great bunch of guys, thanks to the  FF family.
this week i did get 2 quotes from Hindu buyers, 50% less on the price then last year!   I knew the market took a hit but half the price will not even make sense for me to cut the trees. I have 3 buyers more but if they come up with the same dang prices i will have to think about postponing the thinning of to 2020 and hope that the prices will come back. The problem is that i already spent 1500$ in mowing the underbrush and will loose that, but i think it's better to loose 1.5k than 10-15k.
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Offline nativewolf

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Re: 540A Front Axle damage
« Reply #25 on: January 06, 2019, 09:17:03 PM »
Yep, would be better to cut losses.  Besides, not real losses, the mowed undergrowth is important anyway.  It will show up in stem growth.  

Re processors I was thinking more of doing contract work for everyone else.  If they are selling them for euc plantations in brazil than surely it would pay in CR.  But if the stone work is starting to move ahead that might not matter.  

Good luck on the skidder parts.  I'm no mechanic so glad others are able to lend time.
Liking Walnut

Offline BargeMonkey

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Re: 540A Front Axle damage
« Reply #26 on: January 07, 2019, 01:59:31 PM »
 We need to find you a newer machine here soon. My nortrax deale flat out told me NEW was obsolete, I did find a place that has NEW ring and pinion for 1250 + ship, Harold's in ME has good used for 650+. I Need to know if you need bearing and shims and need the parts #'s, both those places have the parts on hand to ship. 

Offline teakwood

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Re: 540A Front Axle damage
« Reply #27 on: January 08, 2019, 07:02:28 PM »
I already talked to Bargemonkey with PM's.

Ok, this is what i did. After having a old timer tractor/skidder mechanic search for the parts here in CR (he opened up 3 diffs but they didn't match) he recommended me to use my spare ring bevel gear and pinion. (i have a complete spare axle laying around but it's a rear so the ring gear is left handed and the front is right handed). He told me that i can still use it, it will work, it's just that the tooth will work on the backside, like when you drive in reverse. I didn't believe him and disarmed the old axle and put my mind behind the thought and decided to give it a try. the ring gear and pinion are like factory new.

on the left is the old damaged gear, on the right is my spare gear, like new. one is left handed the other is right handed

the old damaged gear

the spare gear mounted with the preloads and backlash adjusted




I am sure some of you will shook ya' heads but it's third world ingenuity, the fix was free and beats the heck out of spending 1500$ for a new gear on such a old machine. I use the skidder 150h/year and don't haul massive loads so i should be fine, if i get 500-1000h out of the fix i'm happy. of course i will be checking on the outside pinion shaft bearing (the smaller one) periodically because it gets all the load now and it wasn't designed to work like this.

did a small try run and had no weird sounds at all. tomorrow i haul a few hitches and will check on the differential temperature if it gets hot.  

Thanks to all that chimed in and helped me out!
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Offline teakwood

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Re: 540A Front Axle damage
« Reply #28 on: April 02, 2019, 09:34:51 PM »
Update:

i changed the oil after 60h and everything was ok, no fillings or other contaminates, that was in february.

Now, 120h after the fix, the thinning has come to a  successful end and the front diff holded up perfectly.


thanks for all the help  
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Offline tj240

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Re: 540A Front Axle damage
« Reply #29 on: April 08, 2019, 07:51:23 AM »
J&k equipment in new hampshire is really good for parts. They also have a website
work with my father[jwilly] and my son. we have a 240 tj 160 barko[old] works great three generations working together


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