HY as the title sugest, i would like to have the test schedule for the Trans oil pump in a d5h serial number 1DD06574, got to rule out pump condition. test squedule with pump installed in tractor. thanks folks
Attached all the information regarding Test & Adjust of the Power Train including the converter, steering & brakes, and the adjustments of the control linkages.
Make sure to check screen to pump for blockage and suction tube for air intrusion (usually at hose clamp areas). If all that and the pump checked out ok, don’t forget to check the priory valve for hang ups and also the small orifice screens in the transmission valve body.
Humm, so there isn´t a flow check for the pump, installed in the tractor? only pressure test? Got the impression to have read somewhere it was a flow test of somehow... like measure nr of liter in a period of 15 sec... maybe i misread.
You can flow test the pump but it’s usually a lot of work to connect into that system. Typically removal of the pump and a visual inspection can tell you a lot, usually faster than trying to connect the flow meter and everything into that system. Just a flow test won’t tell you everything you also need a pressure reducing valve in line to create some resistance to see what the percentage of flow drop is. Anything more than 20% at the set pressure is to much, but If you flow test the pump and it shows to be bad it can test poorly with a plugged up screen or air in the system that’s why it’s important to check that first.
yep, i got it... anyway i was talking of a free flow test... Yes i do have a problem somewhere, and is a hell of a problem... cause is coming and going... Basically machine when cold, engages well, front and reverse... after some moving around and working, oil heats up untill the alarm comes on, before the alarm come on, it starts with bad shifting expecially from fwrd to rwd, (modulation valve???) what gets my atention is the heating up... Machine pulls well for the clock timing, not super strong but pulls. if we rule out the Gear selector valve, we still have a overheating problem... what could be in your opinion common causes of oil overheating?
First I'd suggest to make all the power train pressure tests (converter, transmission, & steering/brakes) listed in the attachment and see how the results stack up against specification. Be aware that the tests must be done with all systems at normal operating temperature. If that doesn't reveal anything then I would suggest to put a pressure gauge on each of the P1 & P2 pressure taps and mount the gauges in the cab. Operate the machine until it starts giving problems and observe what the pressure gauges are doing, especially the "recovery time" during speed and/or direction shifts. Maybe you need to attack the problem the other way around and first find the cause of the overheating and fix that. You never know it might fix the transmission shifting problems as a result.
Maybe you need to attack the problem the other way around and first find the cause of the overheating and fix that. You never know it might fix the transmission shifting problems as a result.[/QUOTE] Exactly, haven´t been aware of the overheating... still fixing the imense electrical faults... the oil press lamp tell us anything? Besides TXM oil cooler clogging what else can contribute for oil overheating? Despite not much experience into this things, understood that the convertor is the major source of overheating (when forced in stall)? its correct to think this way? BTW thanks Nige, always a great help.
The machine only came into your possession relatively recently. You have no idea what was done before you bought it. You have to start somewhere IMHO. First try cleaning the radiator extrernally. You may be able to see through it but the amount of dirt that comes out of it might shock you. After that move to the condition of the fan (is it installed the correct way round.?), fan drive belts, tensioner, & pulleys. A diagnostic procedure like this means starting from the basics and eliminating each one in turn until you find the root cause of the problem. It is of no use to dive in half way through the process without knowing if any of the steps in the diagnostic sequence before the point at which you started are correct is nothing more than prolonging the process. My opinion, others may differ, Also it would be extremely handy if you have an infra-red temperature measuring device. It can give you good clues as to things such as cooler & radiator efficiency by measuring the fluid inlet and outlet temperatires.
yep , machine is new to me... and came from very far... bought in auction... no way to trace previous problems... I got all tools needed... and also some knowledge... just need where to start and rule out things that do need much atention ... everithing is very bulky takes a day for everithing... Radiator and engine cooling system are fine, no problem there. So as engine, runs fine, still with the same level of cooland since last year. TMX oil cooler got to check out. this things also use thermo valves? thanks ...
There was a power train hydraulic schematic in that test & adjust document I posted earlier. Attached the power train SysOp
yes i saw it, thanks Nige.
Checking the converter sump and transmission sump screens/ magnet is part of the maintenance process. Finding any debris in them will speed up the diagnostic process. If the converter housing cannot scavenge properly it will heat up.
That’s why you have to start with the simple stuff first, if for no other reason than to tick the box that you know it’s OK. As 8V71 says there are 2 suction screens, a small one on the bottom of the converter housing and a larger magnetic one behind a 4-bolt cover on the front of the transmission case. Thinking about it you REALLY need an O&M Manual. Probably the best $50 you’ll ever spend.
Hehe, this is where u guys turn it into a dificult thing... i thought the converter sump worked with minimal oil leak, just enough for lub and cool things... and the remaining flow would be bleed by the converter outlet press valve... and then cooler.. back to sump... always thought the case sump filling would lead to leak in the system, wich i do not have any... I´ll check out all the screens and magnetic plugs... thanks for imput
Thinking about it you REALLY need an O&M Manual. Probably the best $50 you’ll ever spend.[/QUOTE] The F&%$# at CAT dealer in my country asked me for 350 € for a owners manual, and said it was a favour cause it was not common to alow such a deal... i just laught and haven´t been thinking of it no more... if u have a link for the correct thing would be great...
I’ll post you a link and instructions how to download a pdf copy of the correct manual. It will be somewhere about 150 pages. The big advantage of a downloaded pdf version is that you will have it within 5 minutes of the order being processed against your credit card.
i´ll apreciate that, what about repair manuals? including engine? that would be great too.
Here are all 3 manuals that would comprise the "complete set" of information resources for your 1DD tractor. Prices quoted are in US$. SEBU6375 - Operation & Maintenance - $52 SEBP1915 - Parts - $124 SENR3250 - Service (repair) Manual. This manual includes Systems Operation, Specifications, Test & Adjust, Disassembly & Assembly for every system on the machine + a whole lot more. $640. For a download of either of the first two, go to - https://catpublications.com/ Click on "Continue as Guest" when the popup appears. Type SEBU 6375 or SEBP1915 (as appropriate) in the box and click the Search button. When the result of your search appears select the required format that you would like the document to be delivered (Note: CD & paper versions will attract additional shipping costs and take longer to reach you), Add to Cart and then checkout like any other online shop. As I said above the pdf download file is usually available for you to donwload to your computer within 5 minutes or less. In the case of the SENR3250 Service Manual it cannot be downloaded from Cat. Because it would be shipped from the USA the best I can offer you is a CD version of a genuine Cat manual which you will find here - https://www.servicemanualpro.com/?page=Products&searchbox=1DD06574 Unless you can find a paper version of SENR3250 somewhere in Europe where shipping costs would not be crippling I would say that the CD from ServiceManualPro is your best option.
Thanks Nige, i´ll take a look at it.