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Dresser 125e transmission help


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My Dresser 125E got here yesterday. I just serviced the coolant system, the Antifreeze in it looked ok but I went ahead and flushed and filled. The transmission is not wanting to act right, and the clutch pressure is either 0 or pegged to the right. I started messing with it today. I pulled out the the transmission filter and it looked horrible. There is a filter minder on mine for the transmission pressure filter, and it is pegged out as well. I understand there is a screen on these that gets clogged? Was wondering where it is. Tomorrow I am going to change the fluid in the transmission and replace the filter. I want to inspect this screen as well.

 

The filter I removed has no number on it. It was literally falling apart. Fleetguard shows HF6064 and HF 6081 for the 125E(one is for hydraulics I am changing it as well). Do i need to flush this or can I just drain and refill? I am getting 2 transmission filters, I was going to replace it again in 5-10 hours. I understand the system takes 10w oil?

 

I had the floor pan removed. The driveshaft turns until I put it in gear then it stops until the loader moves.  

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Poncho, The suction strainer appears to be plugged with a fibre which would come from steering lining.  The little brass wire stuff is from there too.  No way to know when it was cleaned last.  Once cleaned and new oil you will know more.

The driveline is acting normal so far. 

Dennis

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1 hour ago, farmalldr said:

Poncho, The suction strainer appears to be plugged with a fibre which would come from steering lining.  The little brass wire stuff is from there too.  No way to know when it was cleaned last.  Once cleaned and new oil you will know more.

The driveline is acting normal so far. 

Dennis

Dennis thanks! I

wont know till the weekend my filters came in today I can’t put them on until the weekend 

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1 minute ago, poncho villain said:

Dennis thanks! I

wont know till the weekend my filters came in today I can’t put them on until the weekend 

 

3 minutes ago, poncho villain said:

Dennis thanks! I

wont know till the weekend my filters came in today I can’t put them on until the weekend 

In case anyone needs it the trans filter is wix 51181. My strainer didn’t have the spring in it I seen the manual I am not sure if this type has one 

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well i finally got the filters on today. I drained the torque converter, transmission, and the cooler. When i went to drain the cooler there was no drain plug, so i took off the JIC fittings on the bottom. One of the lines had been replaced, the other has been there since 1985. I went to take it off and it fell apart in my hand. This is going directly to the transmission. I feel like it could have been sucking air. Have to get new hose now i have already removed it. Hope this works!

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Well I got the hose and fluid in today. I was limited on time. I started it up. Went forward and backwards. A few times. It seems to have more power and the steering seems to respond better. I know for sure the high speed is faster. The clutch pressure shows nothing at idle and maxed out under movement. I have no idea if gauge is accurate. Tomorrow I plan to let it completely warm up and see what it does 

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Does this thing have a safety filter along the frame like the C's? 

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4 hours ago, poncho villain said:

This vehicle has a torque converter and a power shift transmission. What is the clutch pressure doing? Is it for the steering clutches?

The term 'clutch pressure' refers to the transmission pressure, probably the gauge on the dash, you are looking at.  It is the normal operating pressure to activate the power shift transmission clutch packs.

Dennis

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Question -on the left side of the torque converter there are four bolts with a plate. Is there another filter or screen in there?

I changed the oil and fuel filters today. I let it warm up and operated it forward and backwards. It shifts good in all 3 gears in forward and reverse. The gauge shows zero clutch pressure in nuetral, and as soon as you put it in gear it pegs all the way to the right maxing out the gauge. I think the gauge is bad. 
 

the left steering clutch lever will almost stop the machine. The right one turns it fine. You can fiddle with the left one and it will start working right. 
 

I go to work a few days so I won’t have any time to mess with it. I think worst case it’s a bad pump. But who knows. I’ll bring gauges next week to check pressures. I hope it has minnimus ports ! 
 

 

thanks for all the responses. 

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Poncho, on late E's, which yours is, they may have plumbed the gauge differently and does not show pressure in neutral.  Someone else may know.  Not sure about cover but don't think there will be a filter there.

When you purchase books, make sure they are for late serial numbers.  I think the break is around 9500.  Others may know 

Dennis

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25 minutes ago, farmalldr said:

Poncho, on late E's, which yours is, they may have plumbed the gauge differently and does not show pressure in neutral.  Someone else may know.  Not sure about cover but don't think there will be a filter there.

When you purchase books, make sure they are for late serial numbers.  I think the break is around 9500.  Others may know 

Dennis

Thanks so much for the info! I haven't had a chance to study my manual yet i hope to soon. It does make sense it would not show in neutral, but I hope that doesn't mean my transmission is bad, but I really don't think it is. There is no noise and it shifts great. In fact maybe i need to try to push when I get home next week to see what it does. Maybe the transmission service fixed it.

 

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Well I did start her up today, let it reach operating temp. Man i like this machine it runs great. I took off on it back and fourth, it seems to be strong, but the problem is it is so muddy from all the rain i cant go try to push anything. it feels strong under power though. Right now I have been measuring all of the hoses. They look to be from 1986, so I am replacing them. I took all the belly pans out and am cleaning it up real good and inspecting. Tomorrow I am going to put gauges on it to see what my pressures are. 

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Remember when running this, it's designed to be run at full throttle. As for the hoses it's best to take them off and have a local shop make them, that way you know it's right.    

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Thanks Pede. I work in steel mill and make hydraulic hoses every day. We have the ultimate setup and they sell them to me real cheap. You’re correct about running it at high idle under operation. The temp has really came up around here, when the loader got here it was cold. I’m wondering if that could be a factor as well. Maybe it just needs warm up time 

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well I messed with it a little while today, time isn't on my side right now. Main thing I did today was measure hoses to make this week. Most of the hoses look original. what i did notice was the machine takes right off and works in all gears, but when i pull the left steering lever it stops, i can jiggle it and it will try to pivot. The right one pivots fine.

 

I have 2 questions on this. I want to adjust the brakes, the foot brake does nothing. My manual says back off the 1/1/2" jam nut, the there is a 3/4" nut to tighten. It says "to place a 3/4" wrench under the nut so as not to over tighten"? I mean don't you just gently tighten the 3/4 adjustment nut till it lightly bottoms out then back off a 1/4? not sure where it wants me to put the wrench. 

 

 The second question is in my manual it shows where to hook pressure gauges but the manual I have I can hardly see the picture. Does anyone on here have a better picture?

If the clutch pressure gauge is accurate, and the pressure is high, there has to be a restriction somewhere. Is there any way to flush these transmission systems? I see nothing about it in the book.

 

It does respond and move better. I feel like it would push but it is so muddy right now. 

 

Thanks Gentleman 

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Question -on the left side of the torque converter there are four bolts with a plate. Is there another filter or screen in there?

I changed the oil and fuel filters today. I let it warm up and operated it forward and backwards. It shifts good in all 3 gears in forward and reverse. The gauge shows zero clutch pressure in nuetral, and as soon as you put it in gear it pegs all the way to the right maxing out the gauge. I think the gauge is bad. 
 

the left steering clutch lever will almost stop the machine. The right one turns it fine. You can fiddle with the left one and it will start working right. 
 

I go to work a few days so I won’t have any time to mess with it. I think worst case it’s a bad pump. But who knows. I’ll bring gauges next week to check pressures. I hope it has minnimus ports ! 
 

 

thanks for all the responses. 

On 1/5/2023 at 6:36 PM, poncho villain said:

well I messed with it a little while today, time isn't on my side right now. Main thing I did today was measure hoses to make this week. Most of the hoses look original. what i did notice was the machine takes right off and works in all gears, but when i pull the left steering lever it stops, i can jiggle it and it will try to pivot. The right one pivots fine.

 

I have 2 questions on this. I want to adjust the brakes, the foot brake does nothing. My manual says back off the 1/1/2" jam nut, the there is a 3/4" nut to tighten. It says "to place a 3/4" wrench under the nut so as not to over tighten"? I mean don't you just gently tighten the 3/4 adjustment nut till it lightly bottoms out then back off a 1/4? not sure where it wants me to put the wrench. 

 

 The second question is in my manual it shows where to hook pressure gauges but the manual I have I can hardly see the picture. Does anyone on here have a better picture?

If the clutch pressure gauge is accurate, and the pressure is high, there has to be a restriction somewhere. Is there any way to flush these transmission systems? I see nothing about it in the book.

 

It does respond and move better. I feel like it would push but it is so muddy right now. 

 

Thanks Gentleman 

Nobody ?

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