M5040HD hydraulic quick disconnect information?

[Owenslee]

I am having ongoing problems with the hydraulic hoses intended to fit the rear remote on our one year old M5040HD and two dealers are providing conflicting information on which fittings are correct.

First...What is the series of quick disconnects on the Kubota factory rear remote?

One dealer says they are ISO-7241-1A ( Parker 6600 series)
Another dealer's parts man says they are ISO-7241-1B (Parker 60 series)

The factory ones installed on the rear valve do not have the spring loaded knurled outer collar I am familiar with on traditional Pioneer 4000 quick disconnects but I am being told that these simply push in or pull out with sufficient hand pressure. I have applied as much force as I can... yet these fittings will not go in.

As luck would have it the identification numbers on the female fittings are both on the bottom side and I am unable to read them. Poor eyesight doesn't help...

So far I have tried both ISO-A and ISO-B male fittings and have been unsuccessful getting either to install in the female fittings.

This is with the tractor engine off and the control valve moved each direction to bleed off any pressure.

Can anyone with a M5040 confirm what male fittings are correct for these quick disconnects and provide any helpful procedure for installing and removing the rear implement hoses?

Thanks...

 

[rjkobbeman]

I am having ongoing problems with the hydraulic hoses intended to fit the rear remote on our one year old M5040HD and two dealers are providing conflicting information on which fittings are correct.

First...What is the series of quick disconnects on the Kubota factory rear remote?

One dealer says they are ISO-7241-1A ( Parker 6600 series)
Another dealer's parts man says they are ISO-7241-1B (Parker 60 series)

The factory ones installed on the rear valve do not have the spring loaded knurled outer collar I am familiar with on traditional Pioneer 4000 quick disconnects but I am being told that these simply push in or pull out with sufficient hand pressure. I have applied as much force as I can... yet these fittings will not go in.

As luck would have it the identification numbers on the female fittings are both on the bottom side and I am unable to read them. Poor eyesight doesn't help...

So far I have tried both ISO-A and ISO-B male fittings and have been unsuccessful getting either to install in the female fittings.

This is with the tractor engine off and the control valve moved each direction to bleed off any pressure.

Can anyone with a M5040 confirm what male fittings are correct for these quick disconnects and provide any helpful procedure for installing and removing the rear implement hoses?

Thanks...

This is what you need: ISO 5675 Agricultural Hydraulic Quick Disconnects

The 8010-4 specifically. ISO 5675 is the standard. It is the "Ag" standard. Looks like it is the Parker 4000 series. I believe the 8010-4 is the Pioneer part number. Either way, ISO 5675 is it.

Although the female couplers pictured have the sleeve you pull back, our Kubotas have the style with no sleeve. You just push in and pull out. They work very nicely.

You can probably find this exact fitting at your local farm store. They are around $5.00 each.

Here is their main hydraulic coupler page that can give you an overview: http://www.discounthydraulichose.com/Hydraulic_Quick_Disconnects_s/235.htm

 

[gwdixon]

Good information from rj.

However, the quick connects can be a pain to engage and disengage since there is no coupling sleeve to pull back. It is a push in, pull out situation and sometimes it takes considerable effort to get them in place or to disengage. Be firm once you have determined the correct connections.

 

[Owenslee]

This is what you need: ISO 5675 Agricultural Hydraulic Quick Disconnects

The 8010-4 specifically. ISO 5675 is the standard. It is the "Ag" standard. Looks like it is the Parker 4000 series. I believe the 8010-4 is the Pioneer part number. Either way, ISO 5675 is it.

Although the female couplers pictured have the sleeve you pull back, our Kubotas have the style with no sleeve. You just push in and pull out. They work very nicely.

Thanks Robert and GW...The Pioneer 8010-4 is exactly the nipple that is mounted to the hose ends I'm trying to connect. However...no go.

I am considering using a drift pin to tap on the female ball seat in an effort to relieve any residual pressure. One of my neighbors made the suggestion and indicates he does it all the time on sticky couplers...with success.

I guess the amount of force needed to connect these hoses is a LOT more than I expected. I am 6'4" and 260lbs and I was putting all my strength into trying to make a connection.

I may put a large clamp on the hose OD near the back of the nipple and see if a 16 oz hammer can persuade the coupling...

I think I like the more traditional spring collar couplers better for ease of locking.

 

[gwdixon]

Thanks Robert and GW...The Pioneer 8010-4 is exactly the nipple that is mounted to the hose ends I'm trying to connect. However...no go.

I am considering using a drift pin to tap on the female ball seat in an effort to relieve any residual pressure. One of my neighbors made the suggestion and indicates he does it all the time on sticky couplers...with success.

I guess the amount of force needed to connect these hoses is a LOT more than I expected. I am 6'4" and 260lbs and I was putting all my strength into trying to make a connection.

I may put a large clamp on the hose OD near the back of the nipple and see if a 16 oz hammer can persuade the coupling...

I think I like the more traditional spring collar couplers better for ease of locking.

Hmmm....they should not be THAT hard to connect. It sounds like you have used considerable force already.

Maybe hosing them down with WD-40 and tapping the ball bearings might loosen them.

There should be a rubber cover for the couplers on the tractor side (female). It gets pretty dusty and dirty back there so maybe something is gumming them up.

Good luck.

 

[Owenslee]

The rubber cups have been in place since new, The female couplings are perfectly clean.

I spoke with another Kubota parts man today and he suggested wiping the male end and female ID with hyd. oil. He also endorsed tapping the female seat lightly with a drift pin.

Part of the problem I suspect is that the rear remote has never been used since the tractor was new and the ball seats are stuck in place.

I'll keep trying...

 

[BeezFun]

I am considering using a drift pin to tap on the female ball seat in an effort to relieve any residual pressure. One of my neighbors made the suggestion and indicates he does it all the time on sticky couplers...with success.

I keep a short 3/8" hardwood dowel in the tractor toolbox, I have to use it to bleed off pressure every now and then. I wrap a rag around it and give it a good rap with the hammer. I felt safer using wood than a metal drift. I guess brass or aluminum would be OK, but all my punches and drifts are steel.

 

[Owenslee]

I keep a short 3/8" hardwood dowel in the tractor toolbox, I have to use it to bleed off pressure every now and then. I wrap a rag around it and give it a good rap with the hammer. I felt safer using wood than a metal drift. I guess brass or aluminum would be OK, but all my punches and drifts are steel.

Good idea...Thanks.