855 Tranny Problems?: John Deere Review  -- John Deere Tractors Discussion Forum and Review 855 Tranny Problems?: John Deere Review -- John Deere Tractors Discussion Forum

  parts   |   manuals   |   discussion   |   photos   |   podcast   |   reviews   |   specs   |   dealers   |   classifieds   |   contact   |   faq   |   myProfile   |   home          Login Now | Sign Up


FAQ:   What is a tractor?

Forum Index
New As Posted | Active Subjects



www.emerichsales.com - New & Used Equipment
          View Tractors For Sale!


www.partsbynet.com - Lawn and Garden Equipment Parts


Bernardsville Landscape Lighting
Click to Post a New Message!

Discussion Boards > Active Subjects > Messages as Posted > John Deere Review Forum

Page [ 1 ] |
Reply | Pop Up Window Reply | Add PhotoAdd Photo
 02-15-2002, 09:35 Post: 35618
coachconverter



Join Date: Jul 2003
Location: Virginia
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 3

2
Filter by User
 855 Tranny Problems?

First off, I'm a bit of a novice on hydraulics.

I bought a 855 last year with about 1600 hours. I noticed while driving it home, not too far, that sometimes the tractor would slowdown and the engine appeared to Bog down. The engine sounds stressed and the tractor slows down.

After replacing all fluids, filters and a gerneral tuneup, the problem almost completely disappeared.

Now, after sitting through the winter, I go to use it and the problem is back but much worse. Going forward only, the tractor bogs down to a point that it stalls out, especially if I'm turning the wheel or if I'm on any kind of grade. I changed the fuel, fuel filter and added Hyd. fluid, but the problem remains.

I'm not above replacing all the fluids again, but does this sound like another kind of problem? The tractor is usable as-is, but I know it's straining the engine.

Any thoughts? Suggestion?

Thanks

Todd






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 02-15-2002, 10:39 Post: 35619
Murf

TP Contributor

View my Photos

View my Photos  Pics
Join Date: Dec 1999
Location: Toronto Area, Ontario, Canada
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 7020
 855 Tranny Problems?

First of all, a really basic question, is this a Hydrostatic transmission? If it is I would be looking at the system pressure relief valves, and or the bypass valves. Best of luck.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 02-15-2002, 13:50 Post: 35623
coachconverter



Join Date: Jul 2003
Location: Virginia
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 3

2
Filter by User
 855 Tranny Problems?

Sorry, yes it is hydrostatic. Your suggestion makes sense, if I understand it correctly. The Bog Down feeling I get, does feel like a pressure overload.

Are these valves something that wear out or clog up?

Thanks

Todd






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 02-15-2002, 19:57 Post: 35636
jd110_1963



Join Date: Feb 2002
Location: westminster, md
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 87
 855 Tranny Problems?

Todd, the first thing I would check is to see if the brakes are dragging. On a smooth, level surface, unlock the parking brake and place the hi-low range lever in neutral. The tractor should now roll very easily by hand. The range lever is located under your right hand leg just under the seat. If the tractor rolls easily, you may indeed have a transmission problem. If it does not roll easily, I would jack up the tractor one wheel at a time and see if there is more drag on one wheel or another. It could be something as simple as the brake linkage out of adjustment. Also is the tractor four wheel drive? if so is the problem worse with front wheels engaged? If it binds excessively with front wheels engaged, you could have mismatched tire sizes. Kenny






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 02-15-2002, 21:22 Post: 35639
Dana Trumpp



Join Date:
Location:
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1
 855 Tranny Problems?

You changed the fuel filter, there are two, the other in in the tank. might be worth the time to check it. Once I had a similar problem with a 855. filter in the tank was pluged. Good luck






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 02-16-2002, 06:30 Post: 35649
TomG

TP Contributor

Join Date: Feb 2002
Location: Upper Ottawa Valley
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5406

2
Filter by User
 855 Tranny Problems?

If the 3ph is fully raised and out of adjustment, or locked down, then the 3ph may stay in lift mode. The relief valve would open and a 'scream' could be heard. Under such conditions, the hydraulic system would be demanding a lot of HP and the governor would fully open the throttle. The engine would seem to labour and may not have power to sustain speed in road gear or on hills. Prolonged operation would over-heat the hydraulic oil.

Anyway, it's a possibility, and an easier one to remedy than the other also good suggestions.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 02-16-2002, 14:43 Post: 35654
Peters

TP Contributor

View my Photos

View my Photos  Pics
Join Date: Feb 2002
Location: Northern AL
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 3034
 855 Tranny Problems?

As the oil for the drive is passing through the oil filter I might change the hydraulic oil filters again? Check that the breather tube is clear as hydralic transmissions will do strange things if the expansion is not compensated. A little water in the tranny with a plugged tube could give some strange effects including emmulsification of the oil and clogging of the filter.
Has the transmission lost any oil after use?






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 02-16-2002, 15:11 Post: 35655
todd R Reid
2002-02-16 00:00:00
Post: 35655
 855 Tranny Problems?

Thanks to everyone for the suggestions. I got it figured out today. The brakes were stuck...oh well, at least it was an easy fix.

Thanks again,

Todd






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 02-17-2002, 06:45 Post: 35662
TomG

TP Contributor

Join Date: Feb 2002
Location: Upper Ottawa Valley
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5406

2
Filter by User
 855 Tranny Problems?

Todd: Happy the problem was a simple fix. In response to your relief valve question. Relief valves are spring-loaded ball valves that open when pressure overcomes the spring. As such, they are pretty reliable things, and since they are safety devices, they'd better be reliable.

I haven't heard of one sticking closed, but it's not uncommon for a spring to break and then the valve won't hold pressure. Springs also can occasionally weaken and require the valve to be adjusted by placing shims behind the spring. The results of such failures would be the opposite of your problem. The engine wouldn't labour because the hydraulics wouldn't work under any appreciable load. There are relief valves in the hydraulic high-pressure line, the 3ph, and most SCV's as well as HST's and power steering.

There also are check valves here and there that prevent backflow that may cause loads to drop in event of ruptured lines or pump failures. Again, these are very reliable devices. There usually are no check valves in lines from the SCV to loader cylinders, and ruptured lines do cause loaded buckets to crash.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

Reply | Pop Up Window Reply | Add PhotoAdd Photo


Page [ 1 ] |

Discussion Boards > Active Subjects > Messages as Posted > John Deere Review Forum

Thread 35618 Filter by Poster:
coachconverter 2 | Dana Trumpp 1 | jd110_1963 1 | Murf 1 | Peters 1 | todd R Reid 1 | TomG 2 |




Most Viewed

+ John Deere 2210 Backhoe Review
+ John Deere vs Kubota Compact Tractors
+ John Deere 790 fuel shut-off solenoid failing???
+ John Deere low viscosity HY GARD
+ John Deere JD 4100 Wiring diagram
+ JD 790 or Kubota L3000DT
+ Should I buy a John Deere 4105???
+ John Deere 4300 turns over but won't start
+ John Deere 455 garden tractor
+ Oil Change for Diesel Tractor

Most Discussion

+ John Deere 4300 scuffing......
+ Possible Solution To The 4000
+ Dealer out to lunch
+ Just got my new JD 4410 - Prob
+ Hello Green, Goodbye Orange
+ Receiver hitch for iMatch
+ 4300 wheel bolt problems
+ 4000 Ten Series 50 hour break
+ Don't buy JD compact tractors.
+ Oil Change for Diesel Tractor

Newest Topics

+ Oil overflow from tube and Smoke
+ John Deere 4100 gear 3 point not workin
+ 2000 John Deer Gator 4 X2
+ Mini Excavator SY20C - Small Body with Big Power
+ John Deer 1070 starting problem
+ John Deere 990
+ Tractors R Us
+ john deere 4100 with 410 loader hydraulic problem
+ John Deere 2032R Buying advice
+ John Deere 2010 loss of hydraulics













Turbochargers for Tractors and Industrial Machines
Cab Glass for Tractors and Industrial Machines

Alternators for Tractors and Industrial Machines
Radiators for Tractors and Industrial Machines

Driveline Components for Tractors and Industrial Machines
Starter Motors for Tractors and Industrial Machines