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Garden Tractors Discussion Forum

Re: JD 425 hydraulics

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JD Seller

04-27-2013 20:53:18

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First off you are pricing the couplers the wrong way. You need to be getting a whole goods bundle that has all four couplers in it. The kit number is BM20761 list price $54.57. This kit has: (4) couplers number AM115139 in it, (4) dust covers, (1) decal. This is a whole goods bundle which is much cheaper than buying it as a service part.

You also are going to need a lock out valve. (#5) Part number AM118213 list price $113.56. This shuts off the deck lift cylinder so it is not moving when you lift the blade. You just remove the elbow that is on the back of your valve and the shut off valve replaces it. You then raise your deck lift all of the way. Then you shut the lock out valve. This way your deck linkage is locked up out of the way and also this keeps the cylinders from being in series. This causes a delay when you are using the one function. This valve is with the quick hitch attaching parts when bought new. There is no whole goods number just for this valve. Some times you can find them used on Ebay or your going to have to bite the bullet and buy it new.

Also the hose loop (key #2)Part # M96981 list $9.74, is handy to keep your hoses out of the steering/front axle. It goes under the motor mount bolt and sticks out under the left side screen. You could make something but it is less than $10 so how much time can you spend???
Also you may need to lube the spool on the control valve that is not being use by your deck. They get sticky because they are not used at all with just the mower. Look at the valve where the control linkage hooks and just spray it with some penetrating oil and work it back and forth. This one also has a float position if you push the lever all the way forward hard. You will use this all of the time with a snow blade.
The couplers are standard equipment on JD 445 and JD 455 garden tractors. So you can look at one of them to see how they go. If you have more questions email me and we can exchange phone numbers and I can walk you through it.

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ken combs

04-28-2013 19:04:22

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 Re: JD 425 hydraulics in reply to JD Seller, 04-27-2013 20:53:18  
Excellent info from JDSeller. I suggest this alternative though:
I much prefer either the quarter turn valve or remote valve to the 'many' turn valve that JD provides. I've bought from him and can attest to the quality of his stuff.

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JD Seller

04-28-2013 19:27:36

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 Re: JD 425 hydraulics in reply to ken combs, 04-28-2013 19:04:22  
Ken that is a good alternative to the JD valve. I think it is funny that the lock out valve is cheaper than JD but the coupler kits is higher that OEM.

The after market coupler kit is $87.00 and the JD coupler kit through whole goods BM 20761 is $54.57

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