92U 3406
Senior Member
I can't pull up any info related to the cold weather options but I think you may be getting into the temperature range where the heaters are recommended. Someone with SIS can probably pull up that service letter.
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About to buy 2020 259D3, couple questions
- Thread starter Traut811
- Start date
Nige
Senior Member
While the weather is cold try covering the majority of the area above the cooling package with a sheet of cardboard with a hole cut in it to allow a small amount of air through. Align the hole with the centre of the fan to avoid stresses caused by the fan blades bending.
Traut811
Active Member
Sounds good, I will give that a shot.
Do you guys have any ideas on the rear camera, or how it should be triggered for that matter? I did not see any mechanical switches to adjust around the joystick.
Nige, what you expected before on the error code present? Last final drive change was 100 hours ago. I suppose I could change it just to know the condition as well. I need to do some reading on if that is why the "!" is currently on, with it having an event log.
Nige
Senior Member
Is the manual in the pocket in the back of the seat.? If it is I suggest to have a good look at the function of the asterisk and what it means. There will be all sorts of combinations of amber, red, flashing/not flashing, accompanied by the audible alarm or not. You need to identify which one you have and what exact conditions are required to generate it..
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Nige
Senior Member
Rear camera I’ll have to look at the diagnostics for it. I’ll send you an electrical schematic which might help you to troubleshoot it. From memory I think the camera is activated by the machine ECM based on signals from the speed sensors (and others) that indicates the machine is moving in reverse.
Traut811
Active Member
Sounds good, thanks! That sounds expensive though.. hoping it is something simple.
Yes it is. There was nothing I saw on the camera, but I will check for info on the asterisk. I wish they gave you a copy on the CD (appears to only be the parts manual on the CD) so I don't have to sit in the cab to flip through the book.
Nige
Senior Member
The CD that comes with the machine is only the Parts Manual. If you want the O&M Manual on a CD ask your dealer for a price based on the reference number in the top RH corner of the cover (M0091175 I think). Or try here for a genuine Cat manual. they seem to be cheaper than Cat at the moment - https://www.servicemanualpro.com/?page=Products&searchbox=CW905975
Nige
Senior Member
I was wrong regarding the camera. It is powered permanently provided the key switch is on. These camera systems are obviously not as sophisticated as the larger machines.
92U 3406
Senior Member
Cat makes a rear door cover kit. Its a vinyl cover that will close off about 80% of the rear door.
Nige
Senior Member
There are a number of references to said kit(s) because there is more than one listed. Unfortunately nothing shows up for a CW9-prefix 259D3.
Rear Door Kit Part Numbers I can see are 452-2243, 452-0539, & 541-3141,
The kit for the crankcase breather heater appears to be 466-1959.
You would have to ask your dealer what Part Numbers are recommended for your particular machine.
92U 3406
Senior Member
IIRC there were 2 heaters on most units. Pretty simple, plug and play from what I remember.
Traut811
Active Member
Little update, the low voltage has popped up several times. The machine is at 12.1v overnight, and quickly comes up to 14.5v after running for a short time. Wondering if my battery is failing.
With the help of Nige, I was able to spin my head looking at wiring schematics. The camera is actually "live" all the time, or should be, and not just when going in reverse like I originally thought. The relay for the backup alarm was kicking on when going in reverse so the signal is being generated. I'm getting constant 12V at the camera. I'm thinking it could be the camera itself at this point.
With the help of Nige, I was able to spin my head looking at wiring schematics. The camera is actually "live" all the time, or should be, and not just when going in reverse like I originally thought. The relay for the backup alarm was kicking on when going in reverse so the signal is being generated. I'm getting constant 12V at the camera. I'm thinking it could be the camera itself at this point.
Nige
Senior Member
Check the co-ax cable between the camera and the display in the cab. Not easy I know.
Traut811
Active Member
I'm actually going to whack the easy button and borrow a working camera of another 259d3 locally. If that does or does not work I'll know if it's hardware or time to trace wires
Nige
Senior Member
That works. Not many people have that option available.......
92U 3406
Senior Member
12.1 volts just sitting is pretty much considered flat. You can try and put it on charge for a few hours and load test it to see if its still good.
Nige
Senior Member
14.5v indicates that apparently the alternator is charging satisfactorily. A fully-charged "12v" battery should be somewhere around 12.6v or better, even after having been left to sit overnight.
Traut811
Active Member
Hey guys.
Between the extremely helpful info from Nige and 92u 3406, figured I might try sneaking a couple more things in here rather than a new thread.
I've been using the machine and working through issues as I go. There were quite a few logged events and diagnostics codes. A buddy is a mechanic at a local excavation company so hooked his laptop up. We decided to clear all stored as most were old.
1- The only active code is a "3700-3 loader bucket inclinometer sensor voltage above normal". I expected this to be a broken wire but did not see any. I got in the machine and rolled the tilt forward and back. The numbers were acting very strange. The tilt lever percentage was all over the place. Would this only monitor the joystick position though, or are one of these a current reading of that tilt sensor?
Long story short, other than pinning out wires to check individual continuity through the wires from the plug back to the ecm, since I don't know which wires they are on that end yet, I'm trying to determine if a sensor is needed before spending $350.
2- there was a logged (Not current) code with 2 instances about low oil pressure. This was red, i assume level 3 alarm. All others showed an hour at which they occurred and this one did not. On the engine parameters, the "engine oil pressure status" said "unavailable parameter". Possible bad oil pressure sensor, and worth just replacing for how cheap they should be? (it does say cat though, so who knows)
Between the extremely helpful info from Nige and 92u 3406, figured I might try sneaking a couple more things in here rather than a new thread.
I've been using the machine and working through issues as I go. There were quite a few logged events and diagnostics codes. A buddy is a mechanic at a local excavation company so hooked his laptop up. We decided to clear all stored as most were old.
1- The only active code is a "3700-3 loader bucket inclinometer sensor voltage above normal". I expected this to be a broken wire but did not see any. I got in the machine and rolled the tilt forward and back. The numbers were acting very strange. The tilt lever percentage was all over the place. Would this only monitor the joystick position though, or are one of these a current reading of that tilt sensor?
Long story short, other than pinning out wires to check individual continuity through the wires from the plug back to the ecm, since I don't know which wires they are on that end yet, I'm trying to determine if a sensor is needed before spending $350.
2- there was a logged (Not current) code with 2 instances about low oil pressure. This was red, i assume level 3 alarm. All others showed an hour at which they occurred and this one did not. On the engine parameters, the "engine oil pressure status" said "unavailable parameter". Possible bad oil pressure sensor, and worth just replacing for how cheap they should be? (it does say cat though, so who knows)
Nige
Senior Member
Attached the troubleshooting for the 3700-3 Diagnostic Code.
The oil pressure alarm is not on a sensor. It is triggered by a Normally Closed switch that opens with rising oil pressure.
TBH on that small of an engine the failure to change the oil & filter in a timely fashion using decent quality products is probably the likely cause of low oil pressure events.
The reason it says "unavailable parameter" on the Status screen is down to the fact there is no pressure sensor. Because the low oil pressure signal is generated by a switch all it could say is "OK" or "Low" depending on the status of the pressure switch.
If your mechanic friend can get back to the machine at some point ask him to download a Product Status Report in pdf format using ET. Send it to me on a PM if you like.
Got a photo of the screen showing the low oil pressure Event.? Was it E360-2 or E360-3.?
Just so you understand the difference between Diagnostic Codes and Events. A Diagnostic Code is created when some electronic component registers a fault that either prevents the machine from operating correctly or prevents an operator warning (Event) being generated.
An Event is when all the electronics are working correctly but some parameter of the machine goes out of the permitted range, as in the case of your Oil Pressure Event.
The oil pressure alarm is not on a sensor. It is triggered by a Normally Closed switch that opens with rising oil pressure.
TBH on that small of an engine the failure to change the oil & filter in a timely fashion using decent quality products is probably the likely cause of low oil pressure events.
The reason it says "unavailable parameter" on the Status screen is down to the fact there is no pressure sensor. Because the low oil pressure signal is generated by a switch all it could say is "OK" or "Low" depending on the status of the pressure switch.
If your mechanic friend can get back to the machine at some point ask him to download a Product Status Report in pdf format using ET. Send it to me on a PM if you like.
Got a photo of the screen showing the low oil pressure Event.? Was it E360-2 or E360-3.?
Just so you understand the difference between Diagnostic Codes and Events. A Diagnostic Code is created when some electronic component registers a fault that either prevents the machine from operating correctly or prevents an operator warning (Event) being generated.
An Event is when all the electronics are working correctly but some parameter of the machine goes out of the permitted range, as in the case of your Oil Pressure Event.
Traut811
Active Member
Thank you for all of that info. I did not know the difference between the events and diagnostics, but it makes sense now.
I skimmed the bucket troubleshooting log but will print it out tomorrow and begin testing. Very helpful.
It's actually a 100-1 code. See attached. I didn't see any event codes related to this.
He is headed out of town but I'll see if he can hook up to it again sometime. Once I get the tilt position resolved I want to make sure that's cleared to see if it comes back as well.
Thanks a million Nige.
I skimmed the bucket troubleshooting log but will print it out tomorrow and begin testing. Very helpful.
It's actually a 100-1 code. See attached. I didn't see any event codes related to this.
He is headed out of town but I'll see if he can hook up to it again sometime. Once I get the tilt position resolved I want to make sure that's cleared to see if it comes back as well.
Thanks a million Nige.
