Hi, My mechanic gave me this piece-- he said its part of the release value for the hydraulic motor. Now because of it, when I stop the machine, one track still moves very slowly. I want to determine the part as he described its only a piece of a larger assembly. Thanks D4C Series III Serial: 6BS00315
I can't help with the ID....but it looks important, what does it come from? Never mind, I see you stated the info in the op, my bad.
Can you post a photo of exactly where he removed that broken piece from.? It appears as though it might have come from the head end of one of the hydraulic drive motors.
From your description one can only assume that your machine has a hystat transmission. Is that correct?
Did D4c have hystat trans?
Looks like maybe the end off one of your speed sensing or underspeed valves.
My thought was the sleeve (item 21) in the 142-1375 head in one of the drive motors, but it's all speculation until the OP tells us exactly where the piece in the photo was found.
Yes it does
I will try to get more information-- they have put it back together. But from what I remember them describing, I think you are correct that it came from the head end of the hydraulic motor.
This image is very helpful, thank you very much.
This image is very helpful, thank you very much. I will look into it.
Hi Nige, please the mechanic says that there is a cable that goes from the lever that engages and disengages the hydrostat- to where this piece is on the hydrostat. So essentially this piece is a valve that controls the on and off drive train power. Right now I have another one in that is slightly faulty so it cause one track to slightly move when in the off position.
A photo would explain it better. Preferably one taken from a couple of feet away so that it's obvious what we're looking at. If someone's finger is pointing to the offending part so much the better.
Hi, Mechanics came out this morning. I had them pull the part. Here it is: Here is the general location on diagram.
That confirms CMark’s theory of the underspeed valve. See post #6 above. The unfortunate fact is that the broken part is not serviced because it is part of the valve body. The only solution is a new valve - P/N 186-6591
Thank you very much-- Yes this is it.
Thank you so much!!!
Can anyone help me look up the price options for this component-- CAT or Aftermarket?
There will be no aftermarket for something like that. The options are either new or used. There are a couple on Machinery Trader but both are "call for Price" https://www.machinerytrader.com/parts/search?SearchType=Start&PartNumber=1866591
Came up with two prices. 1. Location Holland. New OEM part - boxed. Price 1650 Euro. 2. Location FL USA. New OEM part - boxed. Price US$1485.
Thank you very much.
Please can you help me verify the Part numbers for my Hydraulic Seal Kit replacements. Cylinder Arms (5): P/N: 246-5914 Track Adjuster (2): P/N: 904405
Stupid question I know but could a machine shop make one or weld it
Cylinder Kits 9J-8698 Angling Cyl - 246-5914 kit 9J-8674 Tilt Cyl - 246-5914 kit. 7J-9223 Lift Cyl - 246-5914 kit 143-7219 Tilt Cyl - 246-5917 kit 141-2915 Lift Cyl - 246-5917 kit Track Adjusters have no seal kit. You need 1 off each per adjuster - 6S-8797 Bearing, 119-5778 U-Cup Seal, & 167-2452 Wiper Seal.
Nige, Thank you so much for the continual support!