M6800 hydraulic connector size?

[BSawyer]

I have a M6800 with the std single set of hydraulic connectors on the back. I picked up a used 3pt log splitter (Hardee brand) but it has a different size set of hyd. connectors. Now that I think of it, they may all be female connectors. I think he used to use it on an old Ford 4000 or a clone.

If I just go to have the hoses replaced what size male connectors would I need to ask for to be able to connect to the M6800? I didn't see a size listed in my manual. /forums/images/graemlins/confused.gif

anyways, I need to replace the connectors on the splitter or find some adapters. Not sure which to do.

The guy I bought the splitter from also recommended just hooking up one of the hoses on the splitter (the output side coming from the M6800) and putting the other hose in a bucket and then running it to flush out whatever hydraulic fluid is in the splitter.

any body been thru this? any advice?

I can take / post pics if needed.

 

[slowzuki]

The M6800 uses standard pioneer style quick connects and would have a female socket on the tractor. I believe the connector is 1/2" but you can get different threads on it.

The way to flush is while putting the quick connects on, use the tractor hyrdaulics to push the ram in each direction so that the hose connected to the side of the clyinder full of old dirty fluid drains into a bucket.

The hydraulic connector tip has to be removed as it has a little check valve ball in it to prevent leaks.

 

[rbargeron]

It is common practice to reverse the couplings so there is a male & female on the tractor, and m&f on the implement hoses. It makes connect the implement easier. Control valves work best with supply to the inlet port. They may function the other way, but relief and pilot ports may not function as intended. On my rig, the tractor-side remote supply fittings are male and returns are female. As always, prompt cheerful refund if info is bogus. /forums/images/graemlins/smile.gif Take care, Dick B

 

[BSawyer]

Thanks slowzuki and rbargeron /forums/images/graemlins/smile.gif !

All your info makes sense now.

Flushing it should be a breeze.

I like the idea about setting it up as supply-male and return-female. That would definitely make hookup a sensible snap. I'm just not sure how hard the Kubota side would be to swap.

It looks like the log splitter hookups are 3/8 NPT Aeroquip 5601-6-6s female connectors.

Something that worries me a little is this: Aeroquip 5601-6-6s
It looks like the rated flow of the connector is only 3gpm. I'd think that would make for a pretty slow splitter. The former owner said it wasn't the fastest, but I thought with the M6800 pump it would be better. Maybe that won't be so. I thought I'd read somewhere on this fine site that a 11gpm pump works a log splitter pretty good.
/forums/images/graemlins/confused.gif
Looks like the inside diameter of the log splitter connector face is 3/4" and the Kubota connector face ID is about 7/8"

OD is 1.25" vs 1.5".

 

[SkyPup]

On our L39TLB, we've got the male Pioneer 1/2" disconnects on the tractor supply side and the females on the ANBO Root Grapple, works great for everything.

1/2 is usually good for up to 28-30 gallons per hour flowrate.

One the rear three remotes, the female 1/2" Pioneers are there.

 

[slowzuki]

You need to change out to male tips anyways. Get some 1/2" pioneer tips and call it good. Don't bother swapping the tips to female / male on the tractor, the females are installed such that if you forget to unhook they uncouple when you drive away.

 

[rbargeron]

The rated flow is not the max you can put through a fitting. It is the flow beyond which pressure drop and heat buildup may begin to increase. Neither of these thing si really an issue for an M6800 because it has 10 times the needed power and 25 times the fluid reservoir size needed for running a splitter.

Quick disconnects are large on the ends - the 3/8" description size is for the pipe threads connecting to the system. For some related info check out This Site or other Googles on hydraulic fittings.

 

[BSawyer]

Alright, I've been a little slow lately. Not sure why I was worried about the flow of those 3/8 female fittings since they were coming off anyways. /forums/images/graemlins/tongue.gif

I went to the hose and hardware place and picked up a couple 1/2" male tips and adapters for the 3/8" size hose (pic attached).

After looking over the hyd cyl on the log splitter the in/out hose fittings are 3/4". So if I swap the hoses out down the road I may just go with a 1/2" hose and the 1/2" tips I've got now (and 3/4 to 1/2 reducers.

The only thing that has me stumped is: I've used quick attach air fittings and the female connector usually has a ring that slips down and allows easy attach or detach of the male tip.

But on the Kubota there isn't a slip ring. I read the manual where it said to relieve the pressure and just pull the hose out, and I remember the comment from slowzuki about uncoupling if you drive away forgetting to disconnect them.

Question is, is that all there is to it? Just pull on the hose or fitting? Course I had to try the male tip (no hose) and it attached OK but then it had a little fluid leaked and I had a heck of a time getting it back off.

 

[slowzuki]

There is a ring but it is held in the bracket on the tractor. If you watch carefully the hose going to the back of the female will move when conecting.

Push her in and pull her out is all there is to it. When they get dirty things can be fun, you sometimes have to wiggle them and help from behind the bracket.

Yes you lose some fluid each time you connect or disconnect. Newer big ag tractors have a little collection pan and bottle so it doesn't hit the ground.

 

[MadReferee]

Just for your reference regarding flow capacity rates for hoses, here is a chart that might be of some help. The flow rates are recommended maximums for lines that may contain pressure (ie. non-suction).

1/4" hose = 3.5 gpm
1/4" tubing = 6.5 gpm

3/8" hose = 7 gpm
3/8" tubing = 12 gpm

1/2" hose = 12 gpm
1/2" tubing = 19 gpm

3/4" hose = 27 gpm
3/4" tubing = 33 gpm