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d2 5u hydraulic blade, 1 side laging still

d2 5u hydraulic blade, 1 side laging still

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scott in wa.
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Hi Folks.
hope all is well.
I'm still working on my front blade, finally got the big nuts off the diagonal bracing that attach to the blade (tool bar blade)
took me 3 days to get them off, huge nuts, broke down and bought a 10 foot pipe, crazy. got them off.

However, my hydraulic blade still comes up crocked, looks like the left side lags behind the right.
it does have longer hydraulic lines on the side that lags, but want it to come up together, the same time

what controls this in the front pump cover ? I've got the big pump looks like its mounted in a cover on the front of the dozer.
if i take this off, to take a look, is there anything i need to know? can I get seals again? lots of bolts holding cover on.
i don't have book for this. what manual is it?
Must be some kind of valve that control pressure, to keep lines pressurized, i don't have a top lid for this tank either.
just wondering if, the distance the fluid has to travel is the issue?
gota be a pressure valve? or something that hold the fluid in the lines, maybe one side is bleeding back into tank ?
pump only pressurizes the system when the lever is pull back

i was able to trim the hydraulic control valve or spool, to slow down the blade,

Also Ive been looking at sets of hand reamers to clean up the blade pin holes, looking at adjustable hand reamers.
All the holes should clean up a 1.312, (lots of slop) the drift pins are 1.250 so will need to bush and buy new 1.250 pins.

lots of fun, in 100 degree heat. trying to go out a piddle in the mornings, lol.
thanks much
Scott
Attachment
Attachment
1938 d2 3j
1954 d2 5u
1959 440 icd
model 51 rotary valve hoe
1956 IHC S170 dump
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Mon, Jul 6, 2015 11:47 PM
STEPHEN
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[quote="scott in wa."]Hi Folks.
hope all is well.
I'm still working on my front blade, finally got the big nuts off the diagonal bracing that attach to the blade (tool bar blade)
took me 3 days to get them off, huge nuts, broke down and bought a 10 foot pipe, crazy. got them off.

However, my hydraulic blade still comes up crocked, looks like the left side lags behind the right.
it does have longer hydraulic lines on the side that lags, but want it to come up together, the same time

what controls this in the front pump cover ? I've got the big pump looks like its mounted in a cover on the front of the dozer.
if i take this off, to take a look, is there anything i need to know? can I get seals again? lots of bolts holding cover on.
i don't have book for this. what manual is it?
Must be some kind of valve that control pressure, to keep lines pressurized, i don't have a top lid for this tank either.
just wondering if, the distance the fluid has to travel is the issue?
gota be a pressure valve? or something that hold the fluid in the lines, maybe one side is bleeding back into tank ?
pump only pressurizes the system when the lever is pull back

i was able to trim the hydraulic control valve or spool, to slow down the blade,

Also Ive been looking at sets of hand reamers to clean up the blade pin holes, looking at adjustable hand reamers.
All the holes should clean up a 1.312, (lots of slop) the drift pins are 1.250 so will need to bush and buy new 1.250 pins.

lots of fun, in 100 degree heat. trying to go out a piddle in the mornings, lol.
thanks much
Scott[/quote]

Scott, even if one piston was letting fluid by, the way the lines are connected both sides would equalize.
1) are both cylinders the same?
2) can you adjust the tilt with the turn buckle braces?
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Tue, Jul 7, 2015 12:02 AM
Old Magnet
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About the only things that would cause uneven blade rise would be a restriction in the plumbing to one side, uneven cylinder leakage or a mechanical linkage problem, binding or blade frame/push arms are tweaked. Nothing in the #44 unit itself would cause that.
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Tue, Jul 7, 2015 12:06 AM
scott in wa.
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Reply to Old Magnet:
About the only things that would cause uneven blade rise would be a restriction in the plumbing to one side, uneven cylinder leakage or a mechanical linkage problem, binding or blade frame/push arms are tweaked. Nothing in the #44 unit itself would cause that.
could be the slop.
I will dig into it.
will fix slop in pins that keep working my way back.
cylinders are newer,, was the same issue with the old blade lift cylinders (they were wore out)

could be slop I should take a video at post it see what you think.
i will wait ell I ream the holes on horizontal brasses

any experience with the adjustable reamers? there big, will need to ream holes to more than likely by hand 1.312, dang.

just bugs me that blade it coming up crocked, like the left side lags behind the right.
tilts blade, better since newer cylinder, but still does it.
could be the main pivot attachment point, where the fixed attachment point for cylinders
that's even a larger hole, a little bit of slop there will translate to 10 times more out front by the time it reaches 10 feet out front
Attachment
1938 d2 3j
1954 d2 5u
1959 440 icd
model 51 rotary valve hoe
1956 IHC S170 dump
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Tue, Jul 7, 2015 12:55 AM
old-iron-habit
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Reply to scott in wa.:
could be the slop.
I will dig into it.
will fix slop in pins that keep working my way back.
cylinders are newer,, was the same issue with the old blade lift cylinders (they were wore out)

could be slop I should take a video at post it see what you think.
i will wait ell I ream the holes on horizontal brasses

any experience with the adjustable reamers? there big, will need to ream holes to more than likely by hand 1.312, dang.

just bugs me that blade it coming up crocked, like the left side lags behind the right.
tilts blade, better since newer cylinder, but still does it.
could be the main pivot attachment point, where the fixed attachment point for cylinders
that's even a larger hole, a little bit of slop there will translate to 10 times more out front by the time it reaches 10 feet out front
Attachment
Does it hang crooked if you stop the blade partially raised or does it level out? If it straightens out only when fully raised there is probably something bent or sprung. Or something is binding on one side hanging back until all the play is out of the joints. Or it could be slop and the low side is a bit heavier.
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Tue, Jul 7, 2015 1:02 AM
scott in wa.
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Reply to scott in wa.:
could be the slop.
I will dig into it.
will fix slop in pins that keep working my way back.
cylinders are newer,, was the same issue with the old blade lift cylinders (they were wore out)

could be slop I should take a video at post it see what you think.
i will wait ell I ream the holes on horizontal brasses

any experience with the adjustable reamers? there big, will need to ream holes to more than likely by hand 1.312, dang.

just bugs me that blade it coming up crocked, like the left side lags behind the right.
tilts blade, better since newer cylinder, but still does it.
could be the main pivot attachment point, where the fixed attachment point for cylinders
that's even a larger hole, a little bit of slop there will translate to 10 times more out front by the time it reaches 10 feet out front
Attachment
When I put the newer cylinders on I put the hydraulic lines in a 5 gal bucket I wanted to push out all the old hydraulic fluid. this was even after draining the hydraulic tank.
I did both side at the same time, I noticed that the side that lags had a definite lower volume when slowly pulling the hydraulic lever.
The one side was much more volume. this coincides with the lagging side of the blade.
so that's why I'm thinking theirs something wrong in that pump housing.
I was watching both buckets as i did this. i thought it was odd at the time.
thoughts?

thanks
Scott
1938 d2 3j
1954 d2 5u
1959 440 icd
model 51 rotary valve hoe
1956 IHC S170 dump
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Tue, Jul 7, 2015 1:05 AM
scott in wa.
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yep will fix the slop 1st.
Just to answer a question tho, if I hold the lever back until it max's out in full up, it will be level up at full stroke, same with full down.
kind of weird about the different volumes of oil in the 5 gal bucks on each side, all the lines are the same size on each side as well.
ill work on the slop 1st.

gona take a while to do that.

need to find some reamers, then order some Conex bushings

scott
1938 d2 3j
1954 d2 5u
1959 440 icd
model 51 rotary valve hoe
1956 IHC S170 dump
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Tue, Jul 7, 2015 1:25 AM
scott in wa.
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Reply to scott in wa.:
yep will fix the slop 1st.
Just to answer a question tho, if I hold the lever back until it max's out in full up, it will be level up at full stroke, same with full down.
kind of weird about the different volumes of oil in the 5 gal bucks on each side, all the lines are the same size on each side as well.
ill work on the slop 1st.

gona take a while to do that.

need to find some reamers, then order some Conex bushings

scott
sorry to keep going on and on tho.

thanks for the help.

its appreciated

scott
1938 d2 3j
1954 d2 5u
1959 440 icd
model 51 rotary valve hoe
1956 IHC S170 dump
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Tue, Jul 7, 2015 1:27 AM
Old Magnet
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Reply to scott in wa.:
yep will fix the slop 1st.
Just to answer a question tho, if I hold the lever back until it max's out in full up, it will be level up at full stroke, same with full down.
kind of weird about the different volumes of oil in the 5 gal bucks on each side, all the lines are the same size on each side as well.
ill work on the slop 1st.

gona take a while to do that.

need to find some reamers, then order some Conex bushings

scott
About those adjustable hand reamers. The ones I'm familiar with are only for cutting/resizing bronze/brass bushings. Not for cutting steel and certainly not elongated holes.....unless your on to something I don't know about.
The typical resizing I do is either by welding up the holes and reboring or steel sleeve welded in to an enlarged hole and left as steel or bushed.
Other option if feasible is torch off the entire bracket and fabricate new replacement. Although I occasionally hone for final size I have never made use of an adjustable hand reamer for steel.
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Tue, Jul 7, 2015 1:37 AM
mrsmackpaul
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Reply to Old Magnet:
About those adjustable hand reamers. The ones I'm familiar with are only for cutting/resizing bronze/brass bushings. Not for cutting steel and certainly not elongated holes.....unless your on to something I don't know about.
The typical resizing I do is either by welding up the holes and reboring or steel sleeve welded in to an enlarged hole and left as steel or bushed.
Other option if feasible is torch off the entire bracket and fabricate new replacement. Although I occasionally hone for final size I have never made use of an adjustable hand reamer for steel.
Gudday all not much to add as it has just about all been said I believe Pete is 100% correct in his description

As to the different volumes of oil flow with hoses disconnected the oil would take the least path of resistance so if the side with the reduced flow is longer or has more bends it stands to reason that the flow would be lower

at least thats the way I under stand it

I was once taught as a younger person fix the obvious problems first other wise you end up just chasing your tail

adjustable reamers if they look like this type

[img]http://media.midwayusa.com/productimages/880x660/Primary/121/121541.jpg[/img]

They will work in steel ok but I dont know if they will work in the steel that you are going try and use them in and like old magnet says they wont work very well in a elongated holes as old magnet says best to build them up with weld and re bore them

depending on how bad the hole is I have had a lot success building them up with the stick welder and just using a electric drill and a good quality hole saw and heaps of cutting fluid might want to us a hole saw a fraction smaller then the hole you are drilling but you cant get fairly good neat holes with out spending much money and even if the holes arent in the right position it doesnt matter because the diagonal braces will adjust it out

good luck with it all

Paul
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Tue, Jul 7, 2015 3:00 AM
Chuck C
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Reply to mrsmackpaul:
Gudday all not much to add as it has just about all been said I believe Pete is 100% correct in his description

As to the different volumes of oil flow with hoses disconnected the oil would take the least path of resistance so if the side with the reduced flow is longer or has more bends it stands to reason that the flow would be lower

at least thats the way I under stand it

I was once taught as a younger person fix the obvious problems first other wise you end up just chasing your tail

adjustable reamers if they look like this type

[img]http://media.midwayusa.com/productimages/880x660/Primary/121/121541.jpg[/img]

They will work in steel ok but I dont know if they will work in the steel that you are going try and use them in and like old magnet says they wont work very well in a elongated holes as old magnet says best to build them up with weld and re bore them

depending on how bad the hole is I have had a lot success building them up with the stick welder and just using a electric drill and a good quality hole saw and heaps of cutting fluid might want to us a hole saw a fraction smaller then the hole you are drilling but you cant get fairly good neat holes with out spending much money and even if the holes arent in the right position it doesnt matter because the diagonal braces will adjust it out

good luck with it all

Paul
I have a D2 with tool bar blade with worn pins. Make sure that the turnbuckles are the same length.. Like Garlic Pete said the turnbuckles change the tilt of the blade. If the cylinders will hold the blade up try turning one of the turnbuckles and see what happens. This should change the amount of tilt of the blade.
Chuck C
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Tue, Jul 7, 2015 3:18 AM
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