Just another day in paradise

[Mike L]

We have more trouble getting timberpro parts than anything else. Tigercat stuff can usually be had within a day and cat/weiler is usually 2-3 days. Don’t buy much Deere stuff but it’s usually reasonably obtainable.

 

[stinky64]

View attachment 352271Today’s debacle. Timberpro TN745D. excessive noise while swinging. Popped the hydraulic motor out and found glitter. Had to bust out the welder to fabricate a socket to access the mounting bolts. I may have muttered a few 4 letter words. Hauled it back to shop where we disassembled it and made a parts list. Called it in just to be told that half of the needed parts are not in North America and Europe was a long shot. Our other option was to buy a complete komatsu swing motor for $17k with zero warranty since it wasn’t being installed in a komatsu. (They are very similar machines). Seriously? I’m all about buying an American made machine but support is a joke. A machine is only as good as the dealer and ours specializes in disappointment. Rant over.

That's awesome, if ya don't have it, make it.

 

[Tones]

Any outcome on the 320? Weak hydraulic valves can cause the engine to overheat simply because the air goes through the hydraulic cooler first and if that oil is to hot it'll heat the engine up. Had this happen on a 325.

 

[Mike L]

Since the weather cooled down I don’t think it’s been as much of an issue. At least I haven’t heard anything.

 

[Joe H]

https://www.alibaba.com/trade/search?spm=a2700.galleryofferlist.the-new-header_fy23_pc_search_bar.searchButton&tab=all&SearchText=komatsu+swing+motor&has4Tab=true&from=pcHomeContent

 

[skyking1]

What's the impeller on water pump like, with those hours it could be cavitating even though
it seems to be circulating. I've had B models do that, pump and volute were shot.

It is sneaky, the bearing is good it is not leaking, and it moves enough water to "look" OK down the hole.
I had the extreme failure one time.
I worked for a guy in high school who was a good mechanic. He told me about these plastic impellers on AMC that just fell off and laid in the housing.
Somehow I retained that info 10 years. My sister was given a really nice 440 Rambler that overheated. She said come get it so I packed a bunch of jugs of water and brought it from Everett down, adding water and cooling it off as I came to Tacoma.
Light bulb went off and I pulled the pump and there it sat

 

[DMiller]

Ugly time

 

[BC Placer gold]

Bearings were going bad on this Deere 4045 water pump, I neglected it until got the skid steer home...

Plastic impeller then rubbed on housing and snapped off. Gusher of antifreeze at that point...Judging by red rtv looks like changed previously (7400h machine)

 

[Simon C]

Bearings were going bad on this Deere 4045 water pump, I neglected it until got the skid steer home...

Plastic impeller then rubbed on housing and snapped off. Gusher of antifreeze at that point...Judging by red rtv looks like changed previously (7400h machine)

That was a definite water pump failure. almost like something jammed the impeller unless the bearing puked and impeller grabbed side.
Make sure no parts are hiding in a hose.
Simon C

 

[pumkinhead]

Fairly common failure on the Deere pumps

 

[Johhnycanuck]

Alright. For conversation purposes let’s talk cooling systems. Working on a cat 320D fm (forestry machine) delimber with a pro pac delimber setup. 30k hours on it. Don’t know the serial or even what the engine is exactly. Overheating issue. Shot it with an infrared camera and found a hot spot in the radiator. We pulled the radiator, took it in to be hot tanked and cleaned inside and out. Returned and installed. Put a new thermostat in for good measure. Ran nice and cool for a day and a half. Then it got hot again. like 220 degrees. Same as before. The odd thing is that it cools very quickly once you stop working it. Will cool to 170 within 5 minutes. The radiator and hydraulic cooler share the same fan. Hydraulics never get hot. Running with the cap off it seems as though it’s circulating well. I’m wondering if maybe the load from tired hydraulics are creating heat. Thoughts? Ideas? Theory’s?

Have you checked boost? They'll overheat under load and recover as soon as the load is taken off if the wastegate actuator has failed in some way. You'll see boost is over spec if this is the case

 

[Mike L]

I was back on the cat 320 delimber today to replace a radiator. Removed the leaky one, put the new one in and noticed that the serpentine belt was split and paper thin. Ordered a new one but this thing had to run so we started it and was letting it warm up when the belt vaporized into almost nothing. Operator dug around and found an old used one. While I was changing it I found the overheating culprit. 4 out of five wires to the fan were ripped apart. Put the belt on, repaired the wires and sent him to work. Watched it run for a bit and when he stopped he said he had an engine oil leak. Apparently one of the belt strands got behind the damper and wiped out the front main seal. The good news is that it stayed running cool (even though it was a balmy 12 degrees with a stiff wind). Bad news is that the radiator is coming back out tomorrow to access the front main seal and the swing motor is coming out tomorrow to access have a new shaft seal installed.

 

[Welder Dave]

Good that you found the broken wires but I think you would have found them just changing the belt. Was an expensive lesson for them. Not only in repairs but downtime. The belt was staring at you saying, change me I'm on my last legs.

 

[Mike L]

Going to look at a 7.1 cat in a astec crusher wednesday. E.s.n. Is 88102770 Complaint is codes and engine idled down on its own and won’t rev back up. I looked at this machine a couple weeks ago and we couldn’t recreate the issue. Codes are as followed

1235 fmi 9 which was abnormal update rate
5246 fmi 15 after treatment scr operator inducement severity high
5246 fmi 16 after treatment scr operator inducement severity moderate

I am not a cat guru so bear with me. The fact that the codes say operator inducement makes me think that the operator is maybe refusing to let it regen? I don’t work on much tier 4 stuff anymore and I’m a bit behind. Can anyone help clarify what these codes mean?

secondly, as I’m always trying to improve, where in sis can I find the description and causes of codes? I feel like I’ve found it before but for the life of me I can’t find anything.

 

[Nige]

The fact that the codes say operator inducement makes me think that the operator is maybe refusing to let it regen?

From what I know that’s not exactly the case. If I get time tomorrow I’ll have a look but it will be mid-to-late afternoon before I can get online.

 

[Mike L]

From what I know that’s not exactly the case. If I get time tomorrow I’ll have a look but it will be mid-to-late afternoon before I can get online.

Thank you, sir

 

[Nige]

Mike, see the attached. I'm surprised it doesn't have an E1389 of some sort as well as the 5246-X Codes.

My first thought is that the 1235-9 could be the root cause of the problem, or I may be way off base. It might also pay you to study M0087039 attached which applies to all 881-prefix C7.1 Industrial Engines.

 

[hosspuller]

I wonder who came up with the term "Operator Inducement" for an emissions fault derate? An opaque term for "Fix me, Damit"

 

[Birken Vogt]

I guess they liked that term better than "punishment". It induces the operator to do something rather than fix it next week.

 

[Truck Shop]

Continuous forced regens is very common, especially in a truck.