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John Deere 300 Hydro deck compatibility issues


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#1 jimbowlie OFFLINE  

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Posted August 19, 2016 - 02:03 PM

I have a JD 300 Hydro (77) with original deck plate (pinned), IMAG0034.jpg A type 48 deck IMAG0032.jpg IMAG0033.jpg (serial 052727m) with heavy duty draft arms w/pins (requiring a hole not a pin plate), and finally...  a 90ish inch belt...  SURPRISE....  Nothing really fits off the bat.  That being said, the mule seems good with all parts moving freely and the spring is solid.  The draft arms off the mule are the old rod style (bummer).  The type 48 deck has draft arms that are 15 1/2 " in length (one side welded to rod with roll pins holding the other arm in place as it should) IMAG0037.jpg   The arms have 5/8 pins to hold it to the plate on the tractor. IMAG0039.jpg The arms are too wide to fit the hangers by a large margin.  I can get the deck to hang as I pulled the deck plate/pin assembly off of the tractor and drilled a 5/8 hole from older style deck plate so the draft arm pins from the deck mesh with the tractor. The belt (90") about 3 to 4 inchs too long with tension of the mule set to max.  First off, is the center offset of the drive spindle of the deck supposed to  offset 3/4 inches from center of the tractor?  Next, the rear draft arm length and width (distance arm to arm and bar to deck plate) what have you guys gotten to work?   Finally, what belt size with your config?  Thank you in advance please forgive me if there was a post that hit some of this info, I could not find it, My wife has suggested a FIRE SALE...lol



#2 Trav1s ONLINE  

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Posted August 19, 2016 - 09:01 PM

First thought - draft arms on the mule drive are for the 41 deck which is messing with all alignment.  The larger deck is longer from front to back and uses shorter arms.  I have attached a pic of the proper arms for a 48 (if my notes are correct) for reference.

Attached Thumbnails

  • 19f3ffeb9961b9d48d102381911922be.jpg

Edited by Trav1s, August 19, 2016 - 09:08 PM.


#3 jimbowlie OFFLINE  

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Posted August 20, 2016 - 04:20 PM

The mule draft arms are  within 1/2 of what you are showing me.  I could even use a die to gain (subtract) another 1/2 to 3/4 if it was that close.  The rear arms are where I am struggling. They are too wide apart (about 3 to 4 inchs away from the hangers on both sides), and the length maybe an inch from ideal (currently 15 1/2").  Then the belt....  It looks like an L4860 will be my starting point unless some one weighs in on experience (86")  The belt that came with it was 90".  I figure the type48 deck was a step up from the 38 and 46 decks(type 47 don't recall the other).  Thank you for your response Trav1s!  Hope to hear ideas and thoughts from all you gurus!  Hoping to save a few clams by avoiding trial and error. Thank you all in advance!



#4 hdg4400 OFFLINE  

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Posted August 20, 2016 - 05:05 PM

jimbowlie:

 

I was confused.  So what you have is Model 48 deck, but not the Model 48 deck that goes on the JD 300? For what it's worth. I have the Model 41 and 48 Deck Operator's Manual for the decks that go on the JD 300 scanned in as a PDF. I could send it to you, but it probably won't help much.

 

Good Luck.

 

Haarlan


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#5 Trav1s ONLINE  

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Posted August 20, 2016 - 07:55 PM

I have been thinking about this today.  Just checked out the pics you posted and I come to this conclusion: Someone adapted late style rear draft arms to the early style deck.  Do you have any close-up pics of the attachment points?


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#6 Trav1s ONLINE  

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Posted August 20, 2016 - 08:07 PM

JDparts shows the proper drive belt for any 120/140/300/314/316K with a 46 or 48 deck as M45254.

 

Jdparts.com lists the specs on the belt as:

 

Description:   V-Belt - BELT, PRIMARY DRIVE Package Quantity:   1   Alternative Part

 A-A84K   V-Belt - A-SECTION KEVLAR (BLUE)
B1A84K   BELT- 1/2" X 86" KEVLAR
B1037X62MA   Belt - BELT-85.94 WEDGE 


Edited by Trav1s, August 20, 2016 - 08:08 PM.

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#7 Trav1s ONLINE  

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Posted August 21, 2016 - 08:05 AM

Check this out.

 

 

Attached Files


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#8 hdg4400 OFFLINE  

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Posted August 21, 2016 - 10:29 AM

jimbowlie and Trav1s:

 

Here's what have for an Operator's Manual for the 41 and 48 deck for the JD 300

 

Attached File  JD 41 and 48 Rotary Mowers OM.PDF   3.82MB   20 downloads

 

It's different than the one that  Trav1s posted and different than your pictures.

 

Harlan

 

 


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#9 jimbowlie OFFLINE  

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Posted August 21, 2016 - 11:22 AM

Wow!  You guys helped a ton...  Last hurdle is the length of the old style rear draft arms.  I may just fabricate  a set since I have parts that will suffice.  Or I was thinking of using the new arms with the pin style locks and make a cross bar to hook the deck hangers on.  I will try the easy first (build old style) maybe next mowing year I will work on the crossbar for the deck hangers (newer style).  In any case, the length of the old narrow rear draft arms is the last piece of the puzzle.  I took so long playing with this before I asked... Now it is time to look for a snow blower attachment.   Time miss spent.  Thank you guys!  I will try to post close up pictures (as asked) and my version and adaptations as they come.



#10 Trav1s ONLINE  

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Posted August 21, 2016 - 12:16 PM

Glad to hear you are making progress and I am looking forward to the pics of what you found out and ended up doing.

 

As for the snowblower - Model 49 is pretty much a simple affair compared to the blower.  They used three different belts - one for the Kohler single,  another for the Kohler twin/onan, and third for Yanmar machines

 

 

M42485 - (120, 140, 300, 312, 314 AND 316)

M82719 - (317) (318, 316, S.N. 285001- )
M91270 - (330, 322 AND 332)

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#11 Trav1s ONLINE  

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Posted September 02, 2016 - 10:09 AM

So how goes it?


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#12 jimbowlie OFFLINE  

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Posted September 05, 2016 - 10:21 AM

I am building a set of these...300 hydro.jpg    This removes hanger width issues.  But, labor day has eaten into my time.  Hope you all had a great holiday!






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