2010 hydraulic problem

[F4Blue]

I have a '63/'64 2010 crawler. It runs great but I have a problem with the hydraulics occasionally. There is a small rod that enters the left side of the crawler below and in front of the floor board and there is a spring on the end of the rod. The rest of the linkage is missing. It will slide out part way and when it does the hydraulics will not work. I was told this could be a mechanism to disengage the hydraulic pump in cold weather so the starter only had to turn over the engine. Any help will be greatly appreciated.

[RedDirt]

Is it under your left foot?

If so this is a clutch to disengage everything behind the engine so you can start the engine without cranking the transmission and pump.

On mine this rod pulls straight up and has a cross bar that you can engage on the floorboard to hold the clutch in released position.

After the engine is running I lower it down to engage the transmission and pump etc.

[F4Blue]

Yes, that is where it's located. My problem is, all the linkage is missing. All that is there is the rod that goes into the housing and the spring. Thanks for the information. Now I need to find the parts to put it back the way it is supposed to be.

[Pammark]

The lever does connect mechanically to the normal clutch throw-out bearing between the engine and tranny. If the linkage is missing, then the clutch should be engaged all the time. This will not harm the operation. It is handy to pull up and latch (disengage) during colder weather when things are stiff.

There is a tranny oil pressure gauge in the dash panel. If it works and is registering LOW, check your tranny fluid level. There is also a tranny hyd filter under the right side just ahead of the back sprocket. It might need replaced.

Mark

[F4Blue]

I have no problem with the clutch. I can shift gears with no trouble. I just cannot raise the dozer's blade. All other times this happened, I was able to push the rod in, turn it and I could feel it slip into place. When this happened the hydraulics would raise and lower the blade. I can't seem to find that position again.

[Pammark]

I have a loader on my dozer. I am not sure how your blade is plumbed.

I have an external hyd pump connected on the rear where a PTO would fit. There is a small lever hand clutch that needs to be engaged to spin the hyd pump. Look to see if you have a simlar external pump on your PTO and see if it is enganged too. I have seen the fork fingers wore to the point that the small clutch is inbetween stages.

[Tigerhaze]

It will slide out part way and when it does the hydraulics will not work. I was told this could be a mechanism to disengage the hydraulic pump in cold weather so the starter only had to turn over the engine. Any help will be greatly appreciated.

As others have said, this lever disconnects the engine from the transmission for cold (or even warm) weather starting. At least on the loaders, the loader hydraulics are driven by a Cessna pump from the PTO. Because the PTO is driven through the transmission, disconnecting the transmission with that lever also disconnects the PTO and thus the pump. You will want to get that repaired if the remaining lever linkage is hanging up and cuasing inadvertent disconnects.

The transmission hydraulics are totally seperate from loader hydraulics with a seperate reservoir. I haven't looked at the dozers close enough but should also be seperate. I think that was wise since I have blown hydraulic lines for the loader but was still able to drive to a suitable location for repair.

[F4Blue]

I will to check on that. I believe the blade operates from the hydraulics of the dozer. There does not appear to be a separate pump mounted on the PTO. I may be wrong. Ask my wife, I usually am.

[JD430C]

According to the 2010 crawler operators manual, there is two different disconnect levers. There is one for the HLR tranny that disconnects everything, and there is one for the constant mesh tranny that disconnects just the hydraulic pump. In the pic the CMT disconnect lever comes up right below the clutch pedal, the HLR disconnect is near the back of the floor pan.

Most likely yours has the belly hydraulic pump. All of the crawlers equipped with dozers that I have seen have had the belly pump.

Andrew

[F4Blue]

You are correct. It does have the constant mesh tranny. The disconnect is for the hydraulic pump only, which is mounted on the rear of the tranny. The parts I need to fix the problem are no longer available through a dealer. Any idea where I might find the parts?

[Tigerhaze]

There are a number of crawler salvage yards around the country that may be able to help you- where are you at?

Here are a few:

CrawlerHeaven- Upstate NY State
Roberts Tractor- Camden, Ohio
Zimmerman Tractor- Versailles, Missouri
General Gear and Machine- Boise, Idaho

All of these yards have websites and had 2010s at some point; however most 2010s I have seen use the H-L-R transmission so may be difficult to find a parts crawler with a constant mesh transmission.

[JD430C]

If you have the part numbers PM them to me, I have a 2010 industrial wheel tractor that is pretty much parts. I know it has most of the disconnect on it, just dont know if its the same.

Andrew