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Need A Picture And Maybe A Couple Of Measurements

9919 david bradley sickle bar sears 725 9917

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#1 MH81 ONLINE  

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Posted July 21, 2013 - 03:13 PM

I am thinking I would like to mount my Early Style Sears Sickle mower on my David Bradley 725 for Show Purposes.

I need good pics of how they mount (there was an adapter kit) and the belt tightener (lever and mule).

Originally, I was planning on just posting a build thread, but I keep failing at this and cant find good enough pics to get the job done.

DB725 cyberman.JPG plus_sign.jpg image.jpg Equal_sign_large.jpg Q.jpg


Thanks Guys, In Advance :thumbs:
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#2 Gtractor ONLINE  

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Posted July 21, 2013 - 03:23 PM

I can't seem to enlarge your pic of the tractor to see the detail I need to see but it should already have the rear bracket hanging down from the frame.  The rod on the rearmost of the sickle goes through that bracket.  I'm unsure about an adaptor kit but I do have a DB suburban 10 that had a sickle on it at one time if you need pics.

The front of the sickle mower has the one mount and it goes through the eyelet on the left side of the front axle.

The belt tightener and mule is the same one used on the rotary mower deck.   At most you would have to change the adjustment of the belt tightener assembly [mule drive] to allow for a difference in belt length.


Edited by Gtractor, July 21, 2013 - 03:29 PM.

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#3 MH81 ONLINE  

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Posted July 21, 2013 - 08:02 PM

OK, I found a description of the kit(s), they refer to them as Cat. No. 9919 and Cat. No. 9917

9919 kit description.jpg

I am taking pics of the tractor and it's siblings in a second

#4 MH81 ONLINE  

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Posted July 21, 2013 - 08:49 PM

And here are a few pics of the left hand side of each tractor.
 
These are of the '63 917.60629. (yes, I know the engine is wrong... I'm OK with that, it starts nice and runs strong)
 
P7210169 (Large).JPG P7210168 (Large).JPG P7210170 (Large).JPG
 It was never drilled for a belly mount rod holder.  From my research, the 63's were undrilled for that and the hole for the tightener too.  Also, there is mention of a 9917 kit that includes an offset tie rod end and a template for drilling the frame.   It has round axle and flat steering linkages.
BTW, the parking brake on this was added by a PO and may have to come back off to do this.
 
The next two are of the '63 917.60630 parts unit Also has round axle and flat steering linkages.
P7210167 (Large).JPG P7210166 (Large).JPG
As you can see, it has the belly bracket and a tightener, but it still has a round front axle.
P7210167 (Large).JPG P7210166 (Large).JPG
 
Last is the 917.60637 listed as a '64.  Kind of a runner (suddenly lost spark and I can't remember where I put it :smilewink: )  It has round tie rods and square axle.
P7210172 (Large).JPG P7210171 (Large).JPG
 
So, do I have enough parts here?  What say you DB Guru's
 
Lastly, I found one more pic.  I believe this is a retro fit tightener, but want to make sure.
Belt tightener unknown.jpg

BTW, the Years are courtesy of Jeff.

The tractor are as follows

601,602 1959
613 ,614 1960
616, 617, 618, 619 1961
622, 623, 624 1962
628, 629 ,630 1963
633, 634, 637 1964
644, 645, 646, 647 1965

There are 21 models of DB Suburbans built from 1959 to 1965. The model numbers are from the Sears parts site. The yrs i have figured out by dates on the manuals. The DB Suburban numbers run from the first tractor 917.60601 to the last attachment a snow blower 917.60660. not every number was used, and some early items like chains and the 1st, 3 pt hitch didnt have a 917 number, at least not one listed by Sears. 60 is the Sears id number for an early Suburban, much like 57 is the id number for the walk-behind tractor. I have spent hours and hours seaching the Sears parts site, running known and random number though it to get the model and attachments they go with. I also have several numbers for the custom tractor built in 1964, that was the fore runner of the first Roper tractor. All Suburbans built after 1965 are Roper made. Any Suburban or custom with a foot clutch is also Roper built.



#5 TAHOE OFFLINE  

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Posted July 22, 2013 - 07:00 PM

Maybe this thread will help your research a little.

 

http://www.mytractor...7227&highlight=

 

http://www.mytractor...1611&highlight=


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#6 MH81 ONLINE  

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Posted July 22, 2013 - 07:30 PM

Thanks Tahoe, those help some. I found some others too and am beginning to understand the general idea behind this "offset" idea.

Using google searches, here are some random pics of the piece I'm talking about.
image.jpg image.jpg image.jpg image.jpg image.jpg image.jpg

It's the slightly lighter colored bar on the blue tractor that goes from wheel to wheel. It's also just visible on the gold tractor too.

It gets the linkage up and out of the way for the sickle bar support.

Anyone out there have any dimensions on this bar? Thanks in advance!
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#7 Gtractor ONLINE  

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Posted July 22, 2013 - 09:48 PM

My '65 David Bradley Suburban 10 has square axle and round drag link/tie rod so nothing is the same. 


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#8 TAHOE OFFLINE  

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Posted July 23, 2013 - 06:55 AM

Put in an email for pics or measurements from the guy I know who has the first gen DB's and sickle mowers, hopefully he can help ya out.


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#9 TAHOE OFFLINE  

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Posted July 23, 2013 - 10:37 AM

Here's reply from the guy I know. He maybe able to get you some other pics and maybe measurements if needed.

 

 

Hi Marty, Yes the stock tie rod interferes. at least on the round axle tractors anyway. It needs to be offset up until it just clears the (flat bar) drag link.
It may clear on the 1964 square axles I'm not sure. The page from the manual (below) implies that the offset tie rod is not required on the squre axles. The steering system was redesigned in 64 so he may not need the offset tie rod. I've only put sickles on round axles myself so cant say for certain. Looking for a picture now.
 

offsettierod1.jpg

offsettierod2.jpg

 

 

The sliding mule drive is actuated from the left side. A 1965 style rear hanger is needed to hang the sickle. I dont have a picture right now but I'll go get one when it stops raining.. I made my own offset tie rod for one of mine. It's just flat bar with rings welded on the ends. Just needs to be raised up pretty much as high as it can go.

Here's a pic of one. If you zoom way in you can see the rear hanger and the lever that slides the mule drive

 

 

 

dbsickle.jpg

 

 

 

Another pic. This one's not mine but you can see the parts. The rear hangers came stock on the 65's but earlier tractors need the framed drilled to accept the hanger and the actuating lever as well as a stop that simply stops the lever from going too far forward. The retrofit kit came with these parts and a paper template for drilling the holes.
 

 

 

IMG_0543-1.jpg


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#10 MH81 ONLINE  

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Posted July 23, 2013 - 12:09 PM

:rocker2: TAHOE You Rock! :rocker2:

Thank you and please pass on a big THANKS to your friend.  :thank_you:

Those are the pics I was looking for.

 

If he would be willing to take some dimensions on that, it would be great.  Just please tell him no hurry, This is going to be a winter job at this point I think.


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#11 MH81 ONLINE  

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Posted July 26, 2013 - 12:00 PM

Ok, now I understand why I was confused.

By studying pics provided by TAHOE, looking at pics on Lauber1's DB site, and good ole google... I have figured out why up is down here.

(1) all Pre 64 units were not drilled in the frame for the mount -check-
(2) all Pre 64 units were not drilled for the belt tightener or stop -check-
(3) all Pre 64 units had a round from axle -check-
(4) all Pre 64 units had a flat cross bar on the steering (offset tie rod). -NOPE-

After studying this for half an hour last night, I decided to take a round tie rod out.
The PO had cut off the pins and ground the steering bars flat. Then they drilled it and installed the tie rods and a round cross bar.
image.jpg
I may have just enough clearance. Will keep you informed and up to speed.

#12 Lauber1 ONLINE  

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Posted July 26, 2013 - 12:20 PM

I guess I wasn't really watching this thread, and knew some of the info you were needing. The first mower (639) was supposed to bolt right on the tractor with the help of a hole or two you drilled. The later one (656) was made to fit the 64 and newer tractor without drilling. Don't know if any of this happened as both mowers are fairly hard to find. I know some guys have mounted them on the old round hood tractors, but I haven't seen one closer than the pictures.  I don't remember there being any info in the manual about changing the drag link, but I  think a parts kit just came with the machine and you were supposed to be smart enough to make it work. Any way it works the mower didn't come out until the newer square hooded tractors in 1962. One of the reason guys changed out to tie rods was that the little rubber bushings wore out in the old arms, and are hard to replace.


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#13 MH81 ONLINE  

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Posted July 27, 2013 - 12:02 AM

Did a test it & it will clear, someday I would like to build the right bracket, but that can wait for now.

Btw, anyone able to provide a correct pulley size for the motor for sickle drive?

#14 MH81 ONLINE  

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Posted July 27, 2013 - 09:42 PM

OK, probably last post on this for right now unless I do something play wise.
image.jpg image.jpg image.jpg



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#15 OkieGt OFFLINE  

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Posted July 29, 2013 - 06:25 AM

Awesome little tractor, loved the pics and video!!!!


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Also tagged with one or more of these keywords: 9919, david bradley, sickle bar, sears, 725, 9917

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