X748 Frame Swap - MyTractorForum.com - The Friendliest Tractor Forum and Best Place for Tractor Information
John Deere Forum John Deere Garden Tractor talk

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 56 Old 08-02-2019, 09:00 PM Thread Starter
Senior MTF Member
 
RBRONKEMA GHTFD's Avatar
 
Join Date: Sep 2013
Location: Michigan
Posts: 904
X748 Frame Swap

So let me start off with a little back story first.

I was slightly looking for a X748 if the right deal came along. I found a 07 model in Missouri that needed a K92 trans-axle. I emailed the seller and he explained that he bought it at a farming equipment auction about 4 years ago and it developed a grinding noise that would happen when going up the slightest incline, and even when going in reverse. I called the P.O. on the phone and he explained to me that it developed that grind last fall some time and that he hadn't used it much if at all since. I gave the whole thing some time, did what I thought was my homework on the K92's and was fully prepared to either rebuild it or replace it should I buy it. I gave it a few more days and the P.O. and myself agreed on a date and time and price and I set out on a drive to Missouri from Michigan. (about 7 hours 1 way)

I arrived and he had the tractor outside his garage waiting under a large over hang. The first thing I noticed was the amount of dirt and oil under the tractor. It was covered. Anything you touched it was either oil or dirt. I chalked it up to the trans-axle having a leak somewhere and it had eventually lead to the "grinding". I checked the fluid level, color, and smell and all seemed ok. I drove it around his property and it never seemed to loose power while "grinding" but I couldn't put my finger on exactly what the sound was. The tractor then ended up on my trailer and I set off on the trek home. I got home the next day after an over night stay in Springfield, IL.

Today I removed the fender pan, foot rest, hood, fuel tank and began de-greasing and power washing everything. It was filthy. It reeked of manure, dirt, grease and oil. Once I got the first round of power washing done I noticed a very large crack in the frame on the right side. Large enough to where the "ear" of the frame was broken off free of the frame. The left side of the frame was just as much of a shock/ disappointment as the other. There were 2 more large cracks on the left "ear" and what I would call a very poor half a$$ fix on the frame.

The hydraulic cylinder bracket had cracked (from lord knows what) and someone welded washers on the frame in a poor attempt at fixing it. I could of thrown up, I was sick to my stomach. Well after a few moments of silence, a few choice words, a few deep breaths, and a quick eBay search I found a X700 frame. The seller and I agreed on a price, and he is shipping a frame out to me from Minnesota. The price of the frame is cheaper than any fix would of been to the trans-axle. Even a replacement trans-axle I was looking at almost 800 to a thousand dollars.

So next week/ weekend I am going to start the frame swap. It is a bare frame, but does include the break pedal, diff lock linkage, and forward and reverse linkages. The rest I will have to swap over to the new frame. I will take plenty of pictures along the way and try to document and explain as much as I can.

This afternoon I took the trans-axle out from under the old frame and finished power washing everything off. Tomorrow I am going to drain the coolant, and pull the motor.
Attached Thumbnails
Click image for larger version

Name:	20190802_123953.jpg
Views:	134
Size:	4.22 MB
ID:	2389183   Click image for larger version

Name:	20190802_093532.jpg
Views:	134
Size:	4.08 MB
ID:	2389185   Click image for larger version

Name:	20190802_093544.jpg
Views:	123
Size:	3.89 MB
ID:	2389187   Click image for larger version

Name:	20190802_093557.jpg
Views:	115
Size:	4.36 MB
ID:	2389189  

Click image for larger version

Name:	20190802_093521.jpg
Views:	122
Size:	3.58 MB
ID:	2389191  

07 John Deere X748
54c Deck
Cat. 1 Limited 3pt. hitch
540 Rear PTO

03 John Deere X585
54c Deck w/14 bushel bagger
45 Loader
47 Snowblower
51 Rotary Broom
54 Push Box
Curtis Cab
John Deere 10p Cart
Land Pride CAO556 Aerator

Sold
John Deere x475
48c deck
47 quick hitch blower

02 John Deere x585 rescue project.
RBRONKEMA GHTFD is online now  
Sponsored Links
Advertisement
 
post #2 of 56 Old 08-02-2019, 09:52 PM
Proud Member of the 1K Club
 
kklowell's Avatar
 
Join Date: Aug 2017
Location: Bridgton, Maine
Posts: 1,448
Re: X748 Frame Swap

Sounds like a heck of a project to me!

My "honey-do list" is so long it has chapters.
kklowell is online now  
post #3 of 56 Old 08-02-2019, 10:09 PM
Senior MTF Member
 
Join Date: May 2018
Location: Illinois
Posts: 885
Re: X748 Frame Swap

This is something to definenatly look for in the X7xx series for us second, third owners going forward.

I need to look at my 455 to see if there are any issues.

Is this issue showing up in the X series on other models?

Does anyone know the gauge/thickness of frames or where this information is available?

I would think it would be listed on replacement frame if available but then again a reduction in material for the bottom line is not always a selling point!

CCMoe

CCMoe

2000 John Deere 455
1991 Ingersoll 4018
1988 Cub Cadet 1720
Cub Cadet 1320
Murray 13.5 HP
Gilson Rear Engine
CCMoe is offline  
Sponsored Links
Advertisement
 
post #4 of 56 Old 08-02-2019, 10:45 PM
Proud Member of the 1K Club
 
Join Date: Mar 2015
Location: Missouri
Posts: 1,317
Re: X748 Frame Swap

Quote:
Originally Posted by kklowell View Post
Sounds like a heck of a project to me!
Its great that the frames on our old Ariens were way over built.
Ariens93GT20 is online now  
post #5 of 56 Old 08-02-2019, 10:49 PM
Senior MTF Member
 
spokes100's Avatar
 
Join Date: Jul 2016
Location: CNY USA
Posts: 791
spokes100 is offline  
post #6 of 56 Old 08-03-2019, 07:10 AM
Senior MTF Member
 
summers5's Avatar
 
Join Date: Jul 2009
Location: Iowa
Posts: 405
Re: X748 Frame Swap

This one was a 08 and yours is a 07 just wondering if theres any pattern of certain years. I remember the one thread above but cant think of any others I've read,tho my memory isn't like it used to be.
Will definitely check mine(07) next time I do maintenance. Hope the frame swap goes smooth!

1997 Sears GT 18.5hp"Kohler Magnum"
SplitFire Plugs
46" Deck
Led tail lites
Electric deck-hitch kit
Sears grader blade
Ag-Fab Spreaderare
46" 2 stage SnowBlower 55w lites
Weights and chain
------------------
2005 JD X485 25hp(SOLD)
------------------
2008 Echo-SRM230 Trimmer 22.8cc
2010 Echo-PB500T Blower 50.8cc
------------------
2007 JD X748SE
54" Edge Deck
3 Point(Ruegg)Hitch Cat1
54" 4way Blade
Yanmar 3TNV76 1116cc 24hp
JD 45 Loader
Heavy Hitch
Front pto
summers5 is offline  
post #7 of 56 Old 08-03-2019, 07:18 AM
Proud Member of the 1K Club
 
kklowell's Avatar
 
Join Date: Aug 2017
Location: Bridgton, Maine
Posts: 1,448
Its great that the frames on our old Ariens were way over built.

Helps explain how a GT18 could weigh almost 1000 pounds.

My "honey-do list" is so long it has chapters.
kklowell is online now  
post #8 of 56 Old 08-03-2019, 09:38 AM
Proud Member of the 1K Club
 
JD-285's Avatar
 
Join Date: May 2016
Posts: 1,640
Re: X748 Frame Swap

Just wondering if you could just replace the back half of the frame? A good welder or body shop could do it.

X500 "Wife's"
285 "The Ames" backup 1
165 "The 165" (Upgrade to FC420V from 170) backup 2
JD-285 is offline  
post #9 of 56 Old 08-03-2019, 09:45 AM
Senior MTF Member
 
spokes100's Avatar
 
Join Date: Jul 2016
Location: CNY USA
Posts: 791
Re: X748 Frame Swap

The question to me is if you or the factory were to make the frame thicker and/or stronger in this area where the transaxle bolts on would that put undue stress on the casting of the transaxle and crack it instead of the frame. I'm not an engineer but is it possible the factory planned this so the frame cracks before the transaxle casting?

spokes100 is offline  
post #10 of 56 Old 08-03-2019, 10:14 AM
Senior MTF Member
 
dkarst's Avatar
 
Join Date: May 2011
Location: MN
Posts: 621
Re: X748 Frame Swap

Sorry to hear about your experience... I guess many X7 buyers will now add "inspect frame to hydro mounting" to their inspection checklist. I ran out and looked over my 2008 X729 this morning and am fine. I do find it interesting that in the 318/420 era, I think that connection was a piece of angle iron welded to flat side of frame vs. now the frame is folded over. I guess with the angle iron you could use a heavy gauge vs. being stuck with whatever thickness the frame is in that area. I also recall some 420's that were used hard could crack that angle iron so it is definitely a high stress area.

Good luck with the swap, take some pics, we love those.

2008 x729 with attachments: 62 MMM, 47 Snowblower, 54" blade with tractor shovel, KK 4' box blade and 5' landscape rake
Former tractor... 1990 318 for 22 years... snif snif
dkarst is offline  
post #11 of 56 Old 08-03-2019, 10:40 AM
Proud Member of the 1K Club
 
JD-285's Avatar
 
Join Date: May 2016
Posts: 1,640
Re: X748 Frame Swap

Quote:
Originally Posted by dkarst View Post
I do find it interesting that in the 318/420 era, I think that connection was a piece of angle iron welded to flat side of frame vs. now the frame is folded over. I guess with the angle iron you could use a heavy gauge vs. being stuck with whatever thickness the frame is in that area. I also recall some 420's that were used hard could crack that angle iron so it is definitely a high stress area.
It is a cost saving measure during manufacturing verses extra expense of the manufacturing of other past models if that is how the 318s were manufactured.

X500 "Wife's"
285 "The Ames" backup 1
165 "The 165" (Upgrade to FC420V from 170) backup 2
JD-285 is offline  
post #12 of 56 Old 08-03-2019, 08:57 PM Thread Starter
Senior MTF Member
 
RBRONKEMA GHTFD's Avatar
 
Join Date: Sep 2013
Location: Michigan
Posts: 904
Re: X748 Frame Swap

I made some decent progress on tearing down the X748. The only sketchy part I've had so far is while removing the motor I used 1 ratchet strap from one corner of the motor across the top to the opposite corner. When I lifted it out of the tractor with my X585 w/45 loader, it rotated to one side (Now laying on it's side). I panicked and quickly back the tractor up and lowered the motor before it would do anything else drastic. It wasn't as gingerly done as I would of liked but it got done. Lesson learned is when I re-install the motor I will use 2 straps.

I got the radiator out, along with the rear lift cylinder and hydro lines, the SCV valve, gauge cluster, and most of the wiring is undone and ready to come out. My only frustration currently is I cannot for the life of me get the steering wheel off. Monday I will rent a steering wheel puller and get it off that way so I can finish removing the dash tower. From there I am planning on waiting until the replacement frame comes in so I can swap the hydro lines and assorted things for it without forgetting where things go. I am going to put pictures up tomorrow. I am having issues downloading currently. I took a ton of pictures.

07 John Deere X748
54c Deck
Cat. 1 Limited 3pt. hitch
540 Rear PTO

03 John Deere X585
54c Deck w/14 bushel bagger
45 Loader
47 Snowblower
51 Rotary Broom
54 Push Box
Curtis Cab
John Deere 10p Cart
Land Pride CAO556 Aerator

Sold
John Deere x475
48c deck
47 quick hitch blower

02 John Deere x585 rescue project.
RBRONKEMA GHTFD is online now  
post #13 of 56 Old 08-03-2019, 09:22 PM Thread Starter
Senior MTF Member
 
RBRONKEMA GHTFD's Avatar
 
Join Date: Sep 2013
Location: Michigan
Posts: 904
Re: X748 Frame Swap

Here are some pictures. I started out draining the coolant, because deere's engineers didn't put a drain hose on the bottom of the rad I put a funnel in there to direct most of the coolant into the bucket. While it was draining I removed the battery, and the "tray assembly" I will call it. Once that was done I removed the hood hinge assembly's, and unbolted the motor and stated removing the wiring harness. I also removed the muffler as it sticks below the bottom of the motor and with it on the motor wouldn't sit on the ground evenly. After the motor was unbolted I removed the fuel lines. The line that goes from the tank to the filter housing I stuck in a small 1 gallon tank figuring "how much can actually come out of this line for a second. Well I turned my back 1 second next thing I knew I had diesel on the floor. CRAP!!! I replaced the line and then went and bought a diesel can and then re-removed the line and the other one and let it drain. This siphoned most of the fuel out of the tank also. Glad I bought the 5 gallon. I also replaced the fuel and air filters. Once the motor was out out came the radiator, and I started in on the dash assembly making sure once something was removed to replace the bolts either in the part, or back in the frame so I know where they go.
Attached Thumbnails
Click image for larger version

Name:	20190803_091640.jpg
Views:	59
Size:	3.54 MB
ID:	2389371   Click image for larger version

Name:	20190803_085726.jpg
Views:	56
Size:	4.37 MB
ID:	2389373   Click image for larger version

Name:	20190803_090126.jpg
Views:	48
Size:	4.03 MB
ID:	2389375   Click image for larger version

Name:	20190803_090454.jpg
Views:	47
Size:	2.90 MB
ID:	2389377  

Click image for larger version

Name:	20190803_092116.jpg
Views:	47
Size:	3.77 MB
ID:	2389379   Click image for larger version

Name:	20190803_094133.jpg
Views:	48
Size:	3.40 MB
ID:	2389381   Click image for larger version

Name:	20190803_104921.jpg
Views:	45
Size:	3.34 MB
ID:	2389383   Click image for larger version

Name:	20190803_103954.jpg
Views:	42
Size:	3.55 MB
ID:	2389385  

Click image for larger version

Name:	20190803_104912.jpg
Views:	40
Size:	3.55 MB
ID:	2389387   Click image for larger version

Name:	20190803_104915.jpg
Views:	40
Size:	4.06 MB
ID:	2389389   Click image for larger version

Name:	20190803_105039.jpg
Views:	43
Size:	4.13 MB
ID:	2389391   Click image for larger version

Name:	20190803_105630.jpg
Views:	41
Size:	2.75 MB
ID:	2389393  

Click image for larger version

Name:	20190803_114932.jpg
Views:	50
Size:	4.01 MB
ID:	2389395   Click image for larger version

Name:	20190803_114936.jpg
Views:	49
Size:	3.85 MB
ID:	2389397  

07 John Deere X748
54c Deck
Cat. 1 Limited 3pt. hitch
540 Rear PTO

03 John Deere X585
54c Deck w/14 bushel bagger
45 Loader
47 Snowblower
51 Rotary Broom
54 Push Box
Curtis Cab
John Deere 10p Cart
Land Pride CAO556 Aerator

Sold
John Deere x475
48c deck
47 quick hitch blower

02 John Deere x585 rescue project.

Last edited by RBRONKEMA GHTFD; 08-03-2019 at 09:28 PM.
RBRONKEMA GHTFD is online now  
post #14 of 56 Old 08-03-2019, 09:31 PM Thread Starter
Senior MTF Member
 
RBRONKEMA GHTFD's Avatar
 
Join Date: Sep 2013
Location: Michigan
Posts: 904
Re: X748 Frame Swap

Last few from today.
Attached Thumbnails
Click image for larger version

Name:	20190803_114939.jpg
Views:	51
Size:	4.50 MB
ID:	2389399   Click image for larger version

Name:	20190803_120610.jpg
Views:	47
Size:	4.26 MB
ID:	2389401   Click image for larger version

Name:	20190803_120620.jpg
Views:	46
Size:	4.86 MB
ID:	2389403   Click image for larger version

Name:	20190803_121048.jpg
Views:	45
Size:	4.99 MB
ID:	2389405  

Click image for larger version

Name:	20190803_124551.jpg
Views:	53
Size:	4.44 MB
ID:	2389407  

07 John Deere X748
54c Deck
Cat. 1 Limited 3pt. hitch
540 Rear PTO

03 John Deere X585
54c Deck w/14 bushel bagger
45 Loader
47 Snowblower
51 Rotary Broom
54 Push Box
Curtis Cab
John Deere 10p Cart
Land Pride CAO556 Aerator

Sold
John Deere x475
48c deck
47 quick hitch blower

02 John Deere x585 rescue project.
RBRONKEMA GHTFD is online now  
post #15 of 56 Old 08-04-2019, 02:57 AM
Senior MTF Member
 
Join Date: Mar 2018
Posts: 382
Quote:
Originally Posted by CCMoe View Post
This is something to definenatly look for in the X7xx series for us second, third owners going forward.

I need to look at my 455 to see if there are any issues.

Is this issue showing up in the X series on other models?

Does anyone know the gauge/thickness of frames or where this information is available?

I would think it would be listed on replacement frame if available but then again a reduction in material for the bottom line is not always a selling point!

CCMoe
My x595 that has had a 45 loader and a 300 pound box blade on it pretty much since it was new has no issues, just crawled under it today after seeing these threads. That area where the axle bolts to the frame is pristine on my machine. My frame measures 3/16" thick - so 7 gauge. Pretty sure the x7's are the same. These tractors are about 1,100 pounds with no deck and no attachments in the 4wd variant.
eKretz is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the MyTractorForum.com - The Friendliest Tractor Forum and Best Place for Tractor Information forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 9 (2 members and 7 guests)
amf232, RBRONKEMA GHTFD
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome