JDcrawlers Messageboard

Welcome Phil. Lavoy Wilcox, the owner and provider of this site can help you with getting the right manuals. Email him at postmaster@jdcrawlers.com . He sells parts for John Deere crawlers, so we try to support his business when we can. I have seen some references to Davenport Tractor on other sites...

You could add your general location to your profile. There might be someone closer than you think, if they knew about where you are located.

Try to be specific in what you are describing. When you say main pump and control valve I am thinking, in this case, you mean the HLR transmission pump and the housing behind it with the valving shown in the 50-15-2 schematics. The HLR pump is not accessible without pulling the engine as it is insid...

John, I agree with Lavoy if you are within .050" of the spec you should be fine. The .010" between fingers is for even movement of the pressure plate and throwout bearing loading and likely more important than the difference between 2.016 and 2.062. At 2.016 you are only .015" from the low side of t...

I seem to remember Lavoy saying something about his was two gauges in one. I just checked the gauge I got from Lavoy, a while back, and on mine the side you have marked as 2.016 is 2.061 (+/- .001"), from the tab to the end of the legs. That would be the JD264 side I believe. The tab is wider (mine ...

I can't say on your 450, I don't have a manual. The 450B uses the JD264 gauge and the manual specs say 2.062" +/- .031" for lever height, not to vary more than .010" finger to finger.

Yes, do the full adjustment procedure step by step, on both sides, and try it. The only cost of that is your time.

Yours is apparently a later 450B since it doesn't have the separate pump and reservoir. Yours uses HLR transmission clutch oil from the circuit with the filter in it, that is why jsal said to check your transmission oil. That pump is inside the clutch housing bolted to the front of the HLR transmiss...

Also ask if he adjusted the fingers of the pressure plate with the John Deere gauge when he assembled the steering clutch.

I don't see that it would. They run out of fuel at times and there is usually some air in the system every filter change. At times require they require cracking the injection line nuts at the injectors to fully clear the pump and start the engine. Then they run with no issues after.

No, it is not school bus yellow. I believe yours would be this John Deere number: John Deere Industrial Yellow Paint - 1991 and Older - TY25679. 1992 and on is a different JD industrial yellow. If it will steer with no load you may have a slipping clutch. If you try to turn left does the crawler sto...

I doubt new filters and a new transfer pump caused your injection pump issue. It sounds like the shutdown linkage in the pump has failed in some way. If you want to try to fix it yourself you can find a Roosamaster/Stanadyne manual on line by searching the pump using the number string that starts wi...

newwood, Plug Nickel's 555 is a totally different animal from your 1010 in drive arrangements for the hydraulic pump and transmission. I don't think it is lack of enthusiasm, on the other board, as much as everyone is at a loss to figure out how the two can be tied together. Your 1010 has a hydrauli...

You asked, "If you pull back on both steering levers at the same time should the crawler stop moving forward but the engine continue to run?" Yes, if you pull back on both steering levers the crawler should stop and the engine should run freely, no lugging down. If it does that your clutches are not...

Have you solved the issue yet? If so, what was it? Since the other two functions work I would expect that one to as well on the manual valve. Cycle the control a few times and it should clear itself. If you have the integrated valve for auto grade control, I suppose something could be holding it out...