1RJ01373
Active Member
Hi Guys. I bought this cat D4C. I have some questions about it. To start out, I'm wondering if there should be zerk fittings on the dozer pivot points. Cuz the tilt pivot has a zerk but not any others. Thanks
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Caterpillar D4C questions.
- Thread starter 1RJ01373
- Start date
Mcrafty1
Senior Member
I'm not familiar with your dozer specifically but I'm quite sure both of the positions you have pictured should have grease fittings. At least I've never seen a dozer that didn't have them in both of those positions.
That is to say they should be there but on the end of the blade rod it looks to have been broken off, probably the same in the other position.
That is to say they should be there but on the end of the blade rod it looks to have been broken off, probably the same in the other position.
Nige
Senior Member
If you post a Serial Number I can look up what grease fittings are where.
If you are planning on doing your own maintenance and repairs then manuals ought to be on the top of your list, unless you bought the machine with them of course.
If you are planning on doing your own maintenance and repairs then manuals ought to be on the top of your list, unless you bought the machine with them of course.
1RJ01373
Active Member
The serial number is 1RJ01373. I have a service manual, parts manual and an operation manual.
1RJ01373
Active Member
I was wondering about this as I saw something on YouTube about it.
Nige
Senior Member
The only grease fittings are on the drive shaft U-joints and the seat rails.
1RJ01373
Active Member
Ok, thanks. I appreciate the help.
Mcrafty1
Senior Member
"The only grease fittings are on the drive shaft U-joints and the seat rails."
No grease fittings on ANY wear components other than the two mentioned here? That's wild.
No grease fittings on ANY wear components other than the two mentioned here? That's wild.
Nige
Senior Member
There is a caveat that I had not considered. This particular tractor was originally sold with a winch but no blade. That plays into it when the maintenance is considered. Machines equipped with a blade apparently have grease fitting on both ends of the tilt cylinder and the blade trunnion but that's it.
1RJ01373
Active Member
Yes that's where they are, I have those ones. It seems weird to me that the other ones aren't there. I was gonna just drill and tap the cylinder ends as there's a spot in the casting for it. But then I thought before I fix something that isn't broke I'd better ask.
Drag racer
Well-Known Member
NEW BUSHINGS DON'T REQUIRE GREASE
1RJ01373
Active Member
Ok, I've got another question. According to the side plate on the frame the engine should have serial number 45v92427 but when I look at the engine plate it says 45v29122. So what is this engine out of? Some of the fuel system is obviously different from what I see in the manual. Also the tractor electric system is 24v and the manual says it should be 12
Nige
Senior Member
The Serial Number 45V29122 leads nowhere, but that's not totally unexpectedly bearing in mind the data posted from 30+ years ago wasn't always 100%. As you may have already deduced, the current engine is much older than the one that was originally installed in the tractor when it was built in 1990.
Take a look on the engine plate. Below the Serial Number there should be an Arrangement Number. That would at least help to trace in which model of machine it was originally installed.
The 3204 engine was somewhat notorious for ventilating cylinder blocks and because the engine has no cylinder liners the "repair" for a failed engine was often to drop another complete engine into the machine.
Take a look on the engine plate. Below the Serial Number there should be an Arrangement Number. That would at least help to trace in which model of machine it was originally installed.
The 3204 engine was somewhat notorious for ventilating cylinder blocks and because the engine has no cylinder liners the "repair" for a failed engine was often to drop another complete engine into the machine.
It should be 12v. How are the batteries connected, series or parallel.?
1RJ01373
Active Member
The batteries are in series, the alternator appears to be from some other machine but just fitted on.
Right this makes sense, from the looks of this tractor it has really high time, might even be the 3rd engine.
Looks like 7N5139, if I'm reading it right.
OzDozer
Senior Member
I have a Cat 931B, S/No 25Y1213, and the 3204 engine in my traxcavator is original, and the engine S/No. - amazingly - is 45V29120. My traxcavator was built in 1980.
45V29122 could have been originally fitted to a D3B crawler tractor, or a 931B traxcavator.
7N5139 is the correct arrangement number for 45V29122, my engine is the same arrangement number.
This engine arrangement number was used on D3B's and 931B's.
45V29122 could have been originally fitted to a D3B crawler tractor, or a 931B traxcavator.
7N5139 is the correct arrangement number for 45V29122, my engine is the same arrangement number.
This engine arrangement number was used on D3B's and 931B's.
OzDozer
Senior Member
Not much effort involved in converting from 12V to 24V on 45V29122, just change the starter motor and alternator. No glow plugs in the DI 3204, and no electrics on the engine itself.
The alternator mounting bracket lends itself to fitting any other alternator pretty easily.
The alternator mounting bracket lends itself to fitting any other alternator pretty easily.
Nige
Senior Member
I knew I’d seen the 7N5139 Arrangement Number somewhere recently. It was during discussions regarding a D3.
1RJ01373
Active Member
Oh, the number isn't specific to each engine. So more like a lot number or something.
So if I got a parts manual for one of these machines then I could order the right parts for this engine?
The reason that I discovered this was because the hand primer is really worn out, so I ordered one from Amazon, that's when I saw the fuel system is different.
Nige
Senior Member
No, a Serial Number is specific to a particular engine, 45V29122 in your case.
7N5139 is an Arrangement Number, a kind of Bill of Materials describing how any engine built to that particular Arrangement Number was put together.
If you look for any of the following Parts Manual references online they will contain information on 3204 engines of Arrangement Number 7N5139 from S/N 45V21898-Up that are identical to your engine.
SEBP1246, SEBP1247, SEBP1248, SEBP1250, SEBP1251, SEBP1252, & SEBP1253.
Most Parts Manuals look like this
