Forum › Forums › Tractor Troubleshooting › Jinma 354 2wd-4wd
- This topic has 22 replies, 9 voices, and was last updated 8 years, 8 months ago by avrum.
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AuthorPosts
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November 12, 2011 at 9:16 am #30447
Was using 4wd plowing snow. When finished I shifted into 2wd while moving and drove home 3+- miles on tar road. Now the 2wd-4wd shifter will not shift into 4wd. Slight grinding in transmission if shifter not held down
Ron
CTOA - Founder
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November 12, 2011 at 11:17 am #33664
Ron,
Welcome to the site, you should have gotten a email with your info. Your login name had to be changed because it was already in use. Please check that in the email too. If you have any problems just use the site contact form.
Hal
CTOA - Founder
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November 12, 2011 at 11:30 am #33667
Sounds like the fork may be bent. If you take side cover off you can see what is going on. We will have any part you need for your tractor. http://www.circlegtractorparts.com
Phillip
Circle G Tractor Sales, Inc.
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November 12, 2011 at 1:07 pm #33677
Thanks!!! All fixed. I removed shifter and side plate. The gears were not aligned. Jacked Front-end and spun front wheels by hand until aligned. slipped in easily. Re-assembled and it works great again.
Thanks again for prompt replies and advice!
Ron
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May 29, 2014 at 2:03 pm #36982
Hmmm, I didn't want the same thing to happen a third time so I left the 4wd engaged for the tar road drive. Now it feels like the 4wd is clicking into engaged/disengaged but no 4wd again. I'll check the engagement fork inside the tranny to see if it broken but where else might I lose my 4wd?
Ron
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May 29, 2014 at 4:23 pm #36985
There are steel balls in a sort of CV joint on either end of the driveshaft, and a c-clip on the shaft. The problem will be in the front. The c-clip may have broke or popped out, the balls no longer in place. Un bolt the driveshaft at the front and push back, be ready to catch the balls as they fall out. Grease them to keep them in place during re assembly. I've never had to do this but it's so common I can write this from memory of all the posts
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May 30, 2014 at 4:06 pm #36994
I tried the “slug” mod in place of the 8 mm ball bearings. Used non threaded portion of 8mm bolt, tapered one end, cut so as 10mm long, it looked like a pistol bullet. Maybe slightly easier to put back together, working well so far.
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June 23, 2014 at 8:23 am #37057
Yeah, finally got to take a look inside the side cover. All looks good in there. I'll put in fresh oil tonight and take apart the drive shaft.
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June 23, 2014 at 7:19 pm #37058
Well, I got the driveshaft partially removed and in 2wd I can spin it when tranny is in neutral. disconnected the back and same story. Which is normal…ish if the bearings came out. OK, how do I go about getting to anything. The spring travel is only about 1/2″. The large collar just left of the grease fitting slides but only about 1/4″ and hits the smaller collar on the spline. No bearings fell out and I can't even get a finger tip in anywhere. A little stuck.
Ron
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June 24, 2014 at 5:47 am #37059
The collar to the left that you can see the spline on is what moves ,just the one on the back side of the shaft not the front ?? You do not need to take the bolts out of that part that you did. Go to the backside of the small splined shaft collapse the spring and the shaft will drop down back end first. The balls are inside of the smaller couplings that ride on the splined shaft
Look in your parts book it will show you where the ball bearings go
Tommy
Affordable Tractor Sales
“Your Jinma Parts Superstore”
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March 18, 2016 at 7:50 am #45931
Four wheel drive on my Jinma 354 has stopped working. Cannot move the 2WD/4WD lever all the way into the 4WD position, just almost. Took it apart but found no obvious problem. Then I slid the cover to take a look at the drive train near the front axle. Does not look “right” to me especially when compared to the photo on this thread. Any advice?
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June 24, 2014 at 10:49 am #37060
Hmm, Doesn't help that my driveshaft cover got a bit crushed so I can't slide the front back into the larger rear tube. I'll try again tonight.
Thanks for the pointer!!!
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June 24, 2014 at 11:09 am #37061
Let me see if I understand:
1 I did not need to unbolt. I will re-bolt it and grease it.
2 is the small splined shaft that compresses a spring it I move it to the left.
3 is the part with the balls in it?
4 is where the balls should fall out of and there should be a C clip holding them?
5 is the driveshaft cover that got slightly crushed. Must have bottomed out.
So I go to the left end of the splined shaft that is bolted to the 2wd/4wd selector case and compress the spring and THAT end will drop down allowing me to slide the assembly to the left and it will separate at #4.
Am I even close?
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June 24, 2014 at 12:33 pm #37062
On the rear of Shaft # 2 is another coupler like # 3, that will compress a spring and allow the complete shaft to drop down,yes part 3- is where the balls are.
Once you expose the rear coupler, you will see that it will slide towards the front of the tractor and drop down
Tommy
Affordable Tractor Sales
“Your Jinma Parts Superstore”
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June 24, 2014 at 5:16 pm #37063
Perfect explanation Tommy.
Unfortunately it gets worse. The exposed CV joint spins freely after taking off driveshaft.
I also noticed a space between my pumpkin and the axel on the bottom of about 1/8″ and had some oil drips.
What's the next weak link to break?
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June 25, 2014 at 9:32 am #37064
Not sure whats going on there,but if you need it we have the complete 4 x 4 boxes with all the internal parts already installed, so you just have to swap it out.
You will prob, need to remove yours take the cover off the top and see whats going on inside, unless you just twisted axle shaft off which is possible
Tommy
Affordable Tractor Sales
“Your Jinma Parts Superstore”
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June 25, 2014 at 9:53 am #37065
Well I lifted the front end. If I spin a tire the other does not turn opposite nor does the Driving Gear turn. I can hear inside the final drive on both sides a BDDDDddddddrrrrrrr sound. If that helps. As far as the gap on the bottom of the differential Axel Housing the bolts were loose. Other side was tight. maybe the person who assembled it got tired. I tightened them and the gap is closed.
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June 25, 2014 at 10:30 am #37066
I'm pretty good at helping figure out problems but this
BDDDDddddddrrrrrrr sound. Has got me !!!!!!!!!!
Tommy
Affordable Tractor Sales
“Your Jinma Parts Superstore”
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June 27, 2014 at 6:56 am #37067
I think there was someone no to long ago with a front axle shaft sheared and if I remember right he sheared it pushing snow.
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June 27, 2014 at 7:21 am #37068
Well, as was said earlier, at this point I'm thinking it may be easiest to remove the power steering cylinder and the Dust Cover from the front of the differential. Looking at the book it appears that would give me a view of the inside of the differential to see what's turning and what's not.
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June 28, 2014 at 7:47 am #37069
question for the dealers along this subject I have a 504a foton and a le 204 dong feng I assume that the front drive system are similar setup with the front driveshaft unions to the front gearcase. I have not been down that road.
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August 17, 2014 at 12:31 pm #37144
Hello,
I hope that you have your tractor fixed but if not I would suggest that you jack it up, block it well and pull the front drive axle out and take it apart. It is a very simple device and it will be easy to figure the problem out once it is dissembled. When i picked up my 354 last year it had no Front drive. I suspected that it would be a spider gear in the front dif. What it turned out to be was the left drive axle snapped off at the area between the shaft and splines. The cause of the failure was that the PO had failed to keep the studs holding the axle tube to the center differential properly tightened this caused a misalignment putting the axle under stress.
My 354 has a FRL and I suspect it was worked pretty hard. This probably caused the axle housing studs to work loose.
Good Luck,
Jim B
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August 20, 2014 at 10:12 am #37148
Finally had time to take off the front axel. I sheared off an axel shaft. Nice clean break right at the differential. The only piece left in the differential was the spline, the clip ring was laying on the bottom. Pulled the spline out with a magnet. Time to order parts!
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