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Clark Michigan loader that wont move in forward or reverse direction

Joined
Jun 30, 2020
Messages
11
Location
Cantley,qc
Occupation
School bus driver
we have an old Clark Michigan 175 wheel loader. It has been parked oustide for several years. It lost some oil underneath the machine between the front and rear whells. We were able to start it, but it wont move in forward or reverse.
The dipstick on the left of the driver's seat shown very low or empty, so we added several gallons of transmission oil. It
did'nt solve the problem. Can someone tell me what to check for. We dont have a manuel. My brother took the following information by the loader's seat: Clark Equipment Michigan 175 ADGM: serial no.c-4hg9-37: bucket 9 fte: tires 18 * 28 ply.
Have a good night,
Gilles
 

kshansen

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Central New York, USA
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Retired Mechanic in Stone Quarry
First thing that comes to mind is does it have air pressure? If so there could be air putting pressure to the neutralizer valve on the transmission.

Are you saying the dipstick to the left of seat is in the cab?

Just for fun any chance of posting some pictures? I think you may have to wait till you have posted a few time so give it a try or just post a few more questions to this thread to get past that point.

Not to be dumb but where is Cantley,qc in the world?
 

kshansen

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Okay one more question what engine does this loader have? Cummins, Detroit or something else?
 

kshansen

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And for a little more information do you know when the last time it did move? Did you see it move yourself or are you just taking someones word?

And next will the boom and bucket move? Does the steering work?

I know lots of questions with no solutions yet! Just trying to learn things that if I was there I would know in the first couple minutes. These questions if answered will point to the direction I need to go to suggest things to then check.

It has been many years since I worked on a Michigan/Clark loader but with good feed back from your end I would like to try to help. Also I understand that you are not going to be standing there waiting for my questions.
 
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kshansen

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Ken,
Click your mouse on his location and Google maps will open up in a new tab with the location.
Yea! I got that idea a bit too late and see he's up in Quebec.

Hope he comes back with some information that will help come up with some ideas.
 
Joined
Jun 30, 2020
Messages
11
Location
Cantley,qc
Occupation
School bus driver
There is lots of air pressure, we can hear it well as we press the brake pedal. After being parked for several years
the wheels sank for about 6 inches in the ground; the back wheels are moving when using the steering. Yes the dibstick by the of the driver seat in the cabin. I will take pictures of the beast today and try to sent them if it is not too hard to do. Thanks a lot for your interest. I will be back shortly. The engine make Iwill tell you later today, it is indicated on the engine. Have a good day
 
Joined
Jun 30, 2020
Messages
11
Location
Cantley,qc
Occupation
School bus driver
The bucket is moving, it was a bit stiff at first. Cantley is right beside Gatineau on the north side. We are up on the hills.
 
Joined
Jun 30, 2020
Messages
11
Location
Cantley,qc
Occupation
School bus driver
I took 6 pictures of the loader, here they are. I drove the loader myself
when we parked it 5 to 10 years ago. There is an oil transmission leak.
It lost some oil since we added some over a week ago. Where it leaks
there is one or more allen key bolts, it is a bit loose. My brother said he will try to find the right allen key socket to tighten it. The leak seems to be forward ( in front) to the torque converter.
 

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kshansen

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OK then a rear steer model, a bit older than what I worked on!

Well if hydraulics work then my thought that the coupling between the converter and the engine idea is out. That is assuming these are still built similar to the ones I'm familiar with.

Not saying it will help me but is it possible to get a picture that shows the converter or pumps? I'm sure it is a bit crowded in there!

I'd be just guessing but if you can find a line that goes from the transmission up to a pump on the converter maybe there is a hose clamping two halves together and the hose has dried out and is causing a suction leak?
 
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Joined
Jun 30, 2020
Messages
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Location
Cantley,qc
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School bus driver
Here are some pictures underneath the loader
 

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Joined
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Location
Cantley,qc
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School bus driver
a few more pictures loader 175 michigan
 

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Welder Dave

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Canada
Hard to tell if the leak is coming from the fittings on the pump or the trans. or both. In the last pic. it looks like a cast 90 deg. elbow on the pump. I don't know if that was common back in the day? I'd rather have a steel hyd. elbow.
 

kshansen

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Retired Mechanic in Stone Quarry
Hard to tell if the leak is coming from the fittings on the pump or the trans. or both. In the last pic. it looks like a cast 90 deg. elbow on the pump. I don't know if that was common back in the day? I'd rather have a steel hyd. elbow.
Agree on the fitting shown in the picture that ends in 1064. Sure looks like a homemade arrangement of fittings brazed together. Would be interesting to know where the other end of that hose is connected.. Just because it looks to be a little on thr crude side does not mean it has to be a problem.

Couple things I would be looking at would be:

Does one of those pumps have a line that hooks to the transmission case that maybe the suction line? If so I would expect the other line to that pump to be connected to a control valve. Not sure if there would be an obvious pressure test port that one could hook a gauge to to see if the pump was producing pressure. There are many things that seeing the machine in person would answer questions that are hard to explain in text going both ways.

The other thing that comes to mind. Many machines of that vintage use air pressure from the brake system to shift transmission into neutral while digging. A sticky or leaking air brake foot valve can hold a slight bit of pressure going to the transmission valve and keep it in neutral. I had a guy asking me to rebuild a transmission in a Cat loader of about that age and when I took a look at the machine found just that. The left foot valve for the brakes was a little stiff. A good shot of penetrating oil and working the peddle up and down a few times and it was fixed!
 

kshansen

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Wouldn't that be sweet!
Yes it was as I really didn't want to pull and rebuild the transmission, even if I was going to get paid to do it! And if I remember guy paid me at least $25.00 for my time and the machine was at the most five miles from my house so I was happy and so was he!
 
Joined
Jun 30, 2020
Messages
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Location
Cantley,qc
Occupation
School bus driver
The brake pedal moves fairly smoot ; it does not come all the way up, probably because the engine was not running. I looked at the air switch underneath the pedal, under the floor, it has a device attached to it with 2 wire
hook up to it. I wonder what that is. Next time we start the engine I will look at the switch to see if there is any air Ileak there. I will also look to see if there is an air line going to the transmission. I will also recheck the oil level in the transmission.
 

kshansen

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Messages
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Retired Mechanic in Stone Quarry
Device with wires hooked to the brake valve might be the brake light switch.

Does this machine have two brake peddles? Right and left? If so the most common place for the hose to the transmission would be from the left peddle.
 
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