HD16DC steering problem.

Hello guys. I have a steering problem with the HD16DC I just bought. When I want to turn (bought ways) and pull the steering lever it’s do nothing at all. But when I hold the steering lever activated for over 1 minute and drive it’s turn great. So maybe I have a pressure/flow problem but I can’t find it. What is the pressure between the valve and the clutch piston going to be? I don’t know my pressure yet because I’m missing a tee adapter for my gauge.
I have also thought that the valve have a problem because the pull clearance only is about 10mm. But I don’t thinks it’s a problem. See picture.

What do you guys thinks wrong?

There will be filter for the steering oil, I am not sure where they hid them on the 16 but mine were choked solid when I got it due to being behind a bolt down cover.

Tanks for the answer. I hope it’s gonna be helpful. But witch of your filters was clogged? The discharge or the suction ?

Ok. I will clean the hole system out then 👍🏻

I'm the novice here but also have a HD 16DC. My serial number is 5272 making it a 1961.

My hydraulic steering filters and clutch are in two canisters with bolt on lids on the right side of engine up on top and right behind engine fan.

Has two cartridge filters. I was lucky and both filters were clean as were the canisters.

I had the same question on mine regarding steering using only the steering hand controls. My tractor if moving with blade up and not pushing a load needs both hand control and corresponding foot brake for any real steering. Using just hand controls while moving you only see gradual steering. Told that is typical.

Thanks DMiller.

Good confirmation. On mine for test, pulled on both hand clutches at same time and when in gear will not move forward.

Good one!

Where was this filter located Morten? My 16 is a DC so it has a Torque Converter but not a power shift. Filters on my tractor are ( at least what I can find)

1. 2 Hydraulic filters in canisters on right side of engine by radiator fan.
2. 2 Fuel Filters. A primary and secondary.
3. 2 engine oil filters.
4. Return Fuel filter screen. Right side just past the firewall.
5. Steering Clutch and final drive breathers at rear of tractor.
6. Tranny, brake, steering oil system suction line screen. Have not touched this and not sure where it is at.
7. I have the donaldson dry air filter system not the oil bath version.

This is all I am showing for filters. Not torque convertor filter, Not sure if there is a separate Clutch Filter cartridge like you show.

What am I missing folks?

Jerry. I send pic OFF location tomorrow.

Cal. The pump have 2 out put both are 0 that’s before I checked the suction screen.

I do not hope the pump is dead but I will try to feed it tomorrow.

Is a positive displacement pump, with no system demand should pull and feed back to reservoir as designed, should pull suction on its own. Dash gauge should read out clutch pressure and trans pressure, these are off this pump. Definitely look at all the suction piping flexible hose connections for tears or cuts, anything that can suck air.

Edited by DMiller - 17 Nov 2017 at 3:57pm

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Edited by Morten.have - 19 Nov 2017 at 10:03am

Is this under the tractor or cannuou reach from above Morten? I have the floorboards off for linkage repair . Can it be reached from the last Nader the floorboards?

Thank you

FINALLY I’ve got pressure at both trans oil filters there is about 150psi low idle and 500psi low idle with the lever fully depressed.

It’s steering really nice now and in hi idle with out push load I can steer with out brakes only by steering clutch lever’s

Sump filter and new Oil. And a lot of air purged between the pressure filters and the valve block.

When I got the pressure I started fine tune the pressure so left and right are acting the same, bout 500psi.

It’s a HD16DC -5319 it’s a lovely tractor with a good functional diesel torque converter.

But I can’t find out the age of it.