td8g dresser steering pump?

pumpngo · Jul 11, 2023

Hi , can anyone tell me please which pump controls steering? one or two element one . I have no clutch pressure on gauge no steering but goes forwards and back plus lifts blade.thanks . I have been told to check suction filter but have not yet.

Barkoguru65 · Jul 11, 2023

As you’re sitting in the seat the transmission pump a two section pump is under your right foot, the suction screen is also under the floorboard mounted to the right frame, there also should be a pressure filter in the battery box behind the selector valve, the single section pump under your left foot is for the blade, the filter is loc in the tank, also if the machine is moving forward and reverse it has clutch pressure, this pressure travels through the steering valve to engage the steering drives which engage the planitaries to drive the sprockets, did this problem just appear or something that happened over time.

pumpngo · Jul 12, 2023

I just bought it it only turned one way and pressure on gauge on top left of dash was only just in green. I wanted to fix it before use but its dry and a fire bug lit fires bordering my block . So i decided to put breaks in, turning left then having to reverse to turn right on same brake. Then it stopped turning , I look at gauge and needle right on left side of gauge no pressure. I have not checked the strainer. Also when i bought it the foot brake didnt work, he said it was disconnected , didnt give any good reason. when i pulled boards up i can see where shaft should be, but the whole shaft has been removed. i need to fix that while fixing turning.

pumpngo · Jul 12, 2023

Thanks so much for the help

pumpngo · Jul 12, 2023

I did read some explinations on line . The system works backwards to what i thought , I thought it was free spinning and got stopped by pressure to turn. As you explained the pressure is on until released for turning . So have i burned the pads by using it on low clutch pressure?

Barkoguru65 · Jul 12, 2023

pumpngo said:
I just bought it it only turned one way and pressure on gauge on top left of dash was only just in green. I wanted to fix it before use but its dry and a fire bug lit fires bordering my block . So i decided to put breaks in, turning left then having to reverse to turn right on same brake. Then it stopped turning , I look at gauge and needle right on left side of gauge no pressure. I have not checked the strainer. Also when i bought it the foot brake didnt work, he said it was disconnected , didnt give any good reason. when i pulled boards up i can see where shaft should be, but the whole shaft has been removed. i need to fix that while fixing turning.

It could possibly just be out of adjustment, there is a brake adjustment screw behind the drive sprocket, it’s hard to get to and you may have to dig around, but it’s behind the sprocket on the final drive housing, a large lock nut with a hex bolt in the middle, loosen the lock and turn the middle bolt in a half or so at a time and see if it starts to steer, may have to try a few times before it steers.

pumpngo · Jul 12, 2023

I need to fix the pressure problem though, will be great if just suction strainer, I think i should fix that first. Am i wrong ? I probably should take the transmission cover off anyway to see how to fix the brake rod that seems to be missing. I'll have to get a machine down to it to pull the cab and fuel tank. looking like a big job. If I pull the round cover off the back of tranny , I should see if the clutches move shouldn't I ? Sadly it's stuck way down paddock on rough ground.

Barkoguru65 · Jul 12, 2023

I would definitely pull the suction screen and clean it and change the pressure filter in the battery box if your machine has it, as far as pressure goes I wouldn’t trust any of the old gauges to be very accurate, in my opinion if the machine has enough pressure to lock the disc on the planitaries it should have enough pressure to steer, I believe that the steering brakes are out of adjustment or too worn to grab the disc, there are four large discs in the differential, two steering and two drives connected to the planitaries, when a gear is selected pressure through the steering valve/levers locks the discs on the planitaries which makes the machine move, pull back on the steering lever slightly releases the planetary on that side, the machine will slowly track off to that side, pull the lever all the way back it locks the brake on that side and the machine will turn that direction since the opposite side is still locked and pulling, if you pull both levers all the way back it should lock both brakes just like pushing the brake pedal and hold the machine, at this point the differential would be free spinning.

pumpngo · Jul 13, 2023

Thanks, How much can you see from pulling the round rear cover? Do you know what pressure it should be? maybe i can buy a gauge and check it. I'll do the screen this weekend, you wouldn't know what size o ring i need do you. It's a pain if i go all the way down and pull it off i won't have time to go back into town for the o ring.

Gordon Gould · Jul 13, 2023

Brake adjustment location

gg

Gordon Gould · Jul 13, 2023

Clutch pressure extends ram end 16 to get drive thru the planetaries. Partial pull back of steering lever removes clutch pressure from end 16 allowing planetaries to spin free and stop drive to sprockets. Full pull back of steering lever uses clutch pressure to extend ram end 18 and apply brake on one side. Foot brake also can apply leverage on the brake levers thru bars 1 and 2 which are weak points. Either the ends brake off of 1 or the pivot point on 2 breaks. If both steering and foot brake, which use the same brakes, are bad, suspect brake pads.

gg

pumpngo · Jul 13, 2023

Thanks , the guy i bought it from said he adjusted it on the side that didn't work . He said it did not make a difference. I'll have to take cover off to fix foot brake i think . If i do that i can adjust everything to spec. It's looking like i have no option to fix properly .
If i adjust the brake too far can i damage anything , maybe allow steel to steel if pads are bad ? it would be good to limp it back to a better place to work on it .

pumpngo · Jul 13, 2023

Someone has been in there before the guy i bought from had it . He said the foot brake never worked . He was on flat ground and never a problem . I'm in goat country and would feel much safer with a brake. when i lifted floor the shaft from the pedal is missing so if i want to fix it i really need to open her up i think to see what has been done before and whats missing.

Gordon Gould · Jul 13, 2023

The brake disc can slide on the shaft. When you apply the brake (steering or foot) the brake shoe pushes the disc from the inside against the back-up shoe (10 in diagram). When you tighten the exterior brake adjust bolt it moves the back-up shoe inward toward the disc. Too tight will make the brake drag all the time and wear quickly. If the shoes are worn off it will be metal that wears.

gg

Barkoguru65 · Jul 13, 2023

When you pull the big cover under the seat you’ll see all the goodies, that red circle is where the brake rod connects, simple rod and clevis there, easily fabricated if you can’t find one, in the next photo the actuators are removed, the yellow circle is the outside brake pad, this is what the adjustment bolt on the outside pushes against, the inner disc is what locks the planetary to make the machine move, pretty simple setup, getting to it is a chore but it’s not too bad compared to other machines in my opinion.

pumpngo · Jul 14, 2023

Thanks, I think i should pull the cover. I don't want to wreck the discs and make a huge job out of what seems simple. I talked to a brake reline mob here in australia . They can reline pads for me. Would you know the thickness of factory ones ?. I suppose it's not too important as it seems there is heaps of adjustment.

pumpngo · Jul 14, 2023

I just got covid so this will be on the back burner for a few weeks.

Barkoguru65 · Jul 15, 2023

pumpngo said:
I just got covid so this will be on the back burner for a few weeks.

Well best of luck with that, had it a couple times myself, wasn’t really much to it, hopefully it’ll pass quickly for you.

pumpngo · Jul 20, 2023

Feeling a bit better so i at least wanted to pull strainer. It confirmed to me anyway i'll have to do the pads. lots of junk and fine steel wires, bits of the pads i think, and probably why the pressure dropped, I could not get the filter off. Looks to me like a screw in outer with drop in filter and the bolt on bottom is just a drain . Is this right ? . I went into town and bought a tool to unscrew it.