48 loader vibrates: John Deere Review  -- John Deere Tractors Discussion Forum and Review 48 loader vibrates: 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
 07-26-2000, 14:12 Post: 18289
Jeff Clymer



Join Date:
Location:
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1
 48 loader vibrates

Looking at a JD 2020 with a 48 loader. The loader "vibrates" when the bucket is lifted or tilted up. It's kind of a fast choppy lift (the choppy is fast not the lift). Anyone have any ideas what it would be? How easy and expensive to fix?






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




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

 07-26-2000, 16:31 Post: 18292
dave piper



Join Date:
Location:
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1
 48 loader vibrates

Sounds like you have a bubble of air in the system and are experiencing cavitation. Run the loader thru its complete cycle several times and it should eliminate it.






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




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

 07-26-2000, 17:02 Post: 18293
RickB.



Join Date:
Location:
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1
 48 loader vibrates

Cavitation, YES. Air bubbles, NO. Most likely an oil supply problem to the main hyd pump. Possible causes include: Plugged filter and /or suction screen (may be from brake lining material); Filter or oil cooler relief valve stuck open; PTO/HI-LO/Reverser valve problem (if so equipped); bad transmission pump. Change filter, look for brass and black organic looking filings to identify brake material. These symptoms can easily be a dealbreaker, find out what is going on or walk away.






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




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

 07-26-2000, 23:21 Post: 18295
Bernie Galgoci



Join Date:
Location:
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1
 48 loader vibrates

Jeff: I have a 48 loader on a JD3010. The 3010 had both a new transmission pump and front pump installed last year. Until the hydraulic oil is slightly warmed (3 to 4 minutes at slow [1000 RPM] idle and 4 to 5 cycles of completely raising and lowering the loader boom), the loader will still "vibrate" on lifting. Even when the temperature is in the 80's outside, the loader exhibits these symptoms, but once the oil is a little warmed the loader behaves perfectly. "Jerky lift operation" is listed in the "trouble shooting" section of my 48 loader manual. The "Possible Causes" it lists are: (1) cold oil, (2) low oil supply or air in hydraulic system, and (3) poor oil circulation. The "Remedies" the manual gives for each of these possible causes are [in order]: (1) raise and lower the loader boom several times, (2) check loader and tractor for oil leaks or loose connections; check oil supply and fill with recommended oil, and (3) check oil filter in tractor hydraulic system. Run the loader through several cycles like Dave said and make sure you warm up the oil. If the loader's performance doesn't improve, Rick is right in saying you have to find out what's going on. It could be simple (plugged filter - $10 part) or it could be big money (worn pumps - $1000 parts). Hope it's a simple solution. [P.S. I have a skid steer that behaves the same way. Until the oil is warmed, it's like driving a rocking chair!]






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




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

 07-27-2000, 01:51 Post: 18298
Roger L.



Join Date: Jun 1999
Location:
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 0
 48 loader vibrates

Thinking about it, both the 2020 and the 3010 have the "closed center" hydraulic pump with the variable displacement rotor....This is a lot different from many of the compact tractors -most of which still have the old (cheap and simple) "open center" type of hydraulic system. It sure sounds like you have a restriction somewhere or else a pump problem.....I'm betting on it being the high pressure hydraulic filter. That would sure be nice. If so, you had better get if fixed, as those closed center pumps come dear(deere?).
BTW, doesn't that 48 loader overpower the 2020 tractor a bit? What will she lift?






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




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

Reply | Pop Up Window Reply | Add PhotoAdd Photo


Page [ 1 ] |

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

Thread 18289 Filter by Poster:
Bernie Galgoci 1 | dave piper 1 | Jeff Clymer 1 | RickB. 1 | Roger L. 1 |




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

+ 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
+ L110 John Deer Tractor gas smell













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