new 448 backhoe sags: John Deere Review  -- John Deere Tractors Discussion Forum and Review new 448 backhoe sags: 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

Kubota Tractors
  Kubota News
  Kubota Price
  Kubota Review
John Deere Tractors
  John Deere News
  John Deere Price
  John Deere Review
New Holland Tractors
  New Holland Tractor Price
  New Holland Tractor Revie
Other Tractor Brands
  Articulated Tractors
  Belarus
  Bobcat Tractors
  Case
  Cub Cadet
  Hinomoto
  Kioti Tractor
  Long
  Massey Ferguson
  Mitsubishi
  Other Tractor Brands
  Other Tractor News
  Shibaura
  Yanmar Tractors
Lawn and Garden Tractors
  Craftsman
  Cub Cadet Garden
  John Deere Garden
  Kubota Lawn Garden
  Other Garden Tractors
  Simplicity
  Toro Wheelhorse
  Ventrac Lawn Tractors
Antique Tractors
  Allis Chalmers
  Case David Brown
  Farmall IHC
  Ford
  Ford 9N 2N 8N
  Fordson
  Harry Ferguson
  John Deere Older
  Massey-Harris Ferguson
  Minneapolis Moline
  Oliver Cletrac Cockshutt
  Restoration
  Tractor Pulling
Tractor Attachments Implements 3ph
  Back Hoe
  Field Mowers Brush Cutter
  Grooming Mowers Finish Mo
  Loaders
  Snowblowers / Snow Plows
  Tillers and Ploughs
  Tractor Implements
  Trenchers
  Wood Chippers 3PH
Tractor Maintenance
  Diesel Fuel Lubrication E
  Tractor Engine Repair Reb
  Tractor Tires
Utility ATV
  All Terrain Vehicles
  John Deere Gator
  Mule Utility Vehicles
General Tractor
  Farming Ranching Agricult
  Photo Contest
  Size Tractor Needed
  Tractor Projects
  Tractor Safety
  Welding
Chinese Tractors
  Jinma Farmpro Agracat
  NorTrac Tractors
  Other Chinese Tractors
Cars
  All Brands
  Audi VW
  BMW
  Car Tires and Maintenance
  Chrysler
  Exotic, Sports, Racing
  Ford Cars
  General Motors
  Honda
  Hyundai
  Mercedes
  News
  Nissan
  Subaru
  SUV and Trucks
  Toyota Cars
Trucks Trailers
  Chevy Pickup Trucks
  Dodge Pickup Trucks
  Ford Pickup Trucks
  Toyota Pickup Trucks
  Chevy Pickup Trucks
  Dodge Pickup Trucks
  Ford Pickup Trucks
  Toyota Pickup Trucks
Home Building
  Alternate Electric Energy
  Barns Pole Barns
  Buying Ranch Farm Acreage
  Carpentry
  Contractors
  Electric
  Excavation
  Moldings Finish Trim
  Other Home Building
  Pellet Stoves
  Plumbing
  Wood Stoves
Tools
  Electirc Power Tools
  Gas Power Tools
  Generators
  Shop Tools
  Techniques Howto
Landscape
  Flowers Shrubs Garden
  Golf Course Maintenance
  Irrigation Systems
  Landscape Design
  Landscape Lighting
  Landscape Maintenance
  Lawn, Turf, and Grass
  Vegetable Gardening
Construction
  Caterpillar
  Komatsu
  Wheel Loaders
Current Events Health Happiness
  Current Events
  Dogs and other Pets
  Electronics And Computers
  Food
  Health
  Just For Fun Off Topic
  Movies Music Games
  Personal Finance Investme
  Sports Outdoors
Tractorpoint Site
  Member Photos
  Site Members
  Website Operations Howto


New As Posted | Active Subjects



Click to Post a New Message!

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

Page [ 1 ] | 2 | 3 | | Next >>
Reply | Pop Up Window Reply | Add PhotoAdd Photo
 08-05-2008, 23:45 Post: 155841
SamSpade



Join Date: May 2008
Location: Vermont
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 41

5
Filter by User
 new 448 backhoe sags

I got my new tractor with a 448 backhoe. But I am surprised how fast the boom hydraulics sag and trying to figure out if it is a problem or normal for the seals to bypass this much.

If I put the boom and dipper out at a 45%, I think the bucket would be on the ground in less than an hour.

I think there is a prescribed time limit that JD says is OK, does anyone know it and the standard position to start from? I am probably not facing a problem, but I would like to confirm it.

SS






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




Bookmarks: Digg It | Del.icio.us |
 08-06-2008, 01:16 Post: 155842
auerbach



View my Photos

View my Photos  Pics
Join Date: Sep 2007
Location: West of Toronto
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 2168
 new 448 backhoe sags

Normal occurence -- when the unit is 25 years old. I'd expect new internal seals to hold for a half-day or so.






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




Bookmarks: Digg It | Del.icio.us |
 08-06-2008, 05:30 Post: 155844
harvey



View my Photos

View my Photos  Pics
Join Date: Sep 2000
Location: Moravia, NY
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1531

4
Filter by User
 new 448 backhoe sags

There are several threads about this and the general consensus is (weather right or wrong) they bleed down fairly quick.

My 48 does also from day 1. I think it is more of a function of the valves in the valve block.






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




Bookmarks: Digg It | Del.icio.us |
 08-06-2008, 12:12 Post: 155853
kthompson



View my Photos

View my Photos  Pics
Join Date: Oct 2005
Location: South Carolina
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5135

3
Filter by User
 new 448 backhoe sags

Based upon Harvey's comment doubt the JD boom has valves that are designed to hold the boom up with the machine off for safety. Look in your manual and see if they say anything about them "holding" if pressure is lost. Some do for safety. You can cut off the machine and break the pressure and the boom will hold. kt






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




Bookmarks: Digg It | Del.icio.us |
 08-06-2008, 14:46 Post: 155862
SamSpade



Join Date: May 2008
Location: Vermont
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 41

5
Filter by User
 new 448 backhoe sags

I didn't see anything about a safety when there is no machine pressure on my first read through the manual. I'll go back and check to see if I missed it.

Earlier I was speaking about with the machine on, but I do know it will settle with the machine off also. I'll try it with the machine off and then on to see if there is a difference.

I tried searching past threads on hydraulic issues, but I didn't come up with anything related to settling like this. Does anybody know the site well enough to suggest a search criteria that might get me closer?

SS






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




Bookmarks: Digg It | Del.icio.us |
 08-06-2008, 17:31 Post: 155875
earthwrks

TP Contributor

View my Photos

View my Photos  Pics
Join Date: Dec 2003
Location: Home Office in Flat Rock, Michigan
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 3853

5
Filter by User
 new 448 backhoe sags

I'm wondering why you'd leave the boom in any position but fully up or fully down. And that it stops in any position is not so much for "safety" but that's its inherent design (Kenny, that means that is how it's designed to be). After all, if you release a control lever while you're digging in any position, you want that particular piece to stop while you're doing another function.

Hydraulics are not to be equated with a transmission in that if you're not going forward or reverse then you're in neutral and can go either way under its own volition--not so. In fact just the opposite. Generally, hydraulics are in a sort of hydraulic limbo until controlled otherwise.

It's sort of like saying a runner standing motionless must be in a "safety position". No, because just a second before that he was running. It's part of the running process---he's gotta start and stop sometime.






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




Bookmarks: Digg It | Del.icio.us |
 08-06-2008, 19:28 Post: 155879
hardwood

TP Contributor

Join Date: Dec 2002
Location: iowa
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 3582

3
Filter by User
 new 448 backhoe sags

The stabilizer cylinders will sag on my #48, but can't tell you about the boom, I always either put the safety pin in for transport or rest the bucket on the ground when if park it. Some cylinders on any equipment seem to leak back a bit or else the control valves leak a bit, unless they get real bad it isn't much of a concern. Frank.






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




Bookmarks: Digg It | Del.icio.us |
 08-06-2008, 22:04 Post: 155889
SamSpade



Join Date: May 2008
Location: Vermont
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 41

5
Filter by User
 new 448 backhoe sags

EW, that's the point. I didn't buy it that it is a safety "feature", I want it to stay stopped when I tell it to stop, but it doesn't. And it is not that it sags over a couple of days, but while I watch. I'd stick it out at a 45 not to do anything but to put it into a high stress position in order to make the issue easier to see (faster). And it was more of a hypothetical. From my normal use and seeing how it reacts I am predicting how it will react if in that hypothetical position. I am trying to decide if is normal for it to sag this fast or if it means the cyclinder is leaking unacceptably.

When I spoke to my dealer about, he said that there might be a spec for how long it takes for it to sag from a specified position that indicates a problem or normal. But he didn't know the specs off the top of his head.

I don't have a lot of experience with this, so I am casting about in the wilderness looking for a ray of hope.... Wink yeah right






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




Bookmarks: Digg It | Del.icio.us |
 08-07-2008, 00:03 Post: 155892
DRankin



View my Photos

View my Photos  Pics
Join Date: Jan 2000
Location: Northern Nevada
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5105

2
Filter by User
 new 448 backhoe sags

I love my Deere but they all "sag" like that.

I have a 46 hoe and it drifts down like yours, as do the stabilizers and the FEL and sometimes the 3 point hitch.

If you do get the specs from Deere don't be surprised if they say that falling in just minutes is within spec.

There are actually three problems going on here.

1) The whole hydraulic system is spec'd pretty loose.

2) Deere (and dealers) keep filling tractors with Low-Vis Hygard with has the viscosity of warm water in spite of the fact that the owners manual calls for regular Hygard at temps over 80 degrees.

3) It is summer. See above.

When I replaced the low-vis in my system the problem didn't go away but it slowed WAY down. On a cold winter day the hydraulics will stay in place all day (12-18 hours).

Summer temps around here are 100 or so and I still get some drift-down in this weather..... about like it used to do in the winter on low-vis.

You may have to change oil twice or three times to get mostly regular Hygard through-out the system considering how much is left behind in hydraulic cylinders, hoses, other implements and such.

But I believe based on my observations and experience that it is the only realistic help you are going to get.

Check the folwing links:

http://eservice.msds.com/servlet/SSMain

http://www.deere.com/en_US/parts/partsinfo/oils_and_lubricants/oil_hydraulic.html







Link:   Viscosity chart 
Picture Link
John Deere Review: new-448-backhoe-sags

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




Bookmarks: Digg It | Del.icio.us |
 08-07-2008, 06:41 Post: 155896
hardwood

TP Contributor

Join Date: Dec 2002
Location: iowa
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 3582

3
Filter by User
 new 448 backhoe sags


DRankin; Like you said changing from Lo-vis to Hi-vis can take several changes to get it completely changed. I do agree with you that the Lo-Vis has the consistency of rainwater, but the service manager tells me DON'T do it meaning leave the Lo-Vis in it year round. Kinda like the newer cars and pickups calling for the 0 - whatever viscosity engine oils year round, but nothing unusual to hear of cars running on the rainwater stuff to have a quarter million miles. One son in law has one with a tick over three hundred thousand and still going, kinda hard for me to believe too. Frank.






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




Bookmarks: Digg It | Del.icio.us |
Reply | Pop Up Window Reply | Add PhotoAdd Photo


Page [ 1 ] | 2 | 3 | | Next >>

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

Thread 155841 Filter by Poster:
auerbach 1 | DRankin 2 | earthwrks 5 | hardwood 3 | harvey 4 | kthompson 3 | SamSpade 5 |

 (advanced search)

Picture of the Day
Rubman

Shibaura - P21f new solenoids or diff valve
P21f new solenoids or diff valve


Unanswered Questions

Shibaura SD2203 rear axle oil
Mitsubishi MX55
Gator HPX ignition module
SL 1643
Removing LHS rear wheel beari
Gear Grinding 1200A - primary
Replacing a friction diskwashe
Bolens k1502 mitsubishi K3 ove


Active Subjects

Big country 4x2 utility vehicl
Operation
lift cylinder for 3pt hitch wo
Still have jerk in hydro
Flatulent gifts human and dog
front mount snowblower
Hydraulics Won t Work
4210 ehydro codes


Hot Topics

NorTrac Tractor Quality Review
Case 446 hydraulic pump
Long 460 hydraulic problem
Jinma Tractor w transmission p
Flatulent gifts human and dog
Generator set up ideas wanted
6X4 Gator Sometimes Shudders
Roof VP75 Brush Mower Manual


Featured Suppliers

Mountain Creek Labradoodles
      MountainCreekLabradoodles.com





New Forums on Gun Sport Shooting and Hunting -- BarrelPoint.com  New Forums on Horses ManePoint.com
Talk Horses at ManePoint
Hunting + Gun Sports at BarrelPoint



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

+ tractor stalling
+ tractor dies
+ 1200A Bunker Rake
+ 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
















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