JDcrawlers Messageboard

Welcome to the Boards. Your question should be on the Late Models Board as it is not a serial number question. Don't be surprised if it gets moved to that board by a moderator. Is there a tag on your loader? It should breathed as a model 7450 loader, if it is original. The loader parts catalogs are ...

Look at section 15 Equipment Attaching, the drawbar page. I believe you are looking for the crossbar and it's mounts used with the regular drawbar for a crawler without a winch.

Best I can say is look up the part numbers and use the part search function on the JD Parts web site to see what other models might have used the same parts. Then it is start searching the web and salvage yards using the part numbers, same as for the radiator shroud you were looking for. If you have...

Do you have the two technical manuals for the 650G? TM1403 Operation and tests technical manual and the TM1404 Repair technical manual are the two required. If it is not working, it could be as simple as a power supply or ground issue. The TM1403 should have wiring diagrams and info on operation and...

Driving one link back in is one thing, changing a couple links is another. If you are considering changing a couple links, you should check around for a shop with a portable "C" press set up for track pin work in the field. A dealer may be able to get individual links that will match yours, no guara...

Serial number breaks (not build years) in the parts catalogs are usually where upgrades show up as changes are made to parts used during production runs. Sometimes a Technical manual may reference the serial number break, if the procedure changes because of the related part change. The 650G parts ca...

Welcome to the Boards. 650 is the model G is the series. In your serial number the TO means it was built at the Dubuque Works. 650 is the model, G is the series. The parts catalog doesn't show what H designates, you may need to ask your JD construction equipment dealer about that letter. That positi...

Welcome to the Boards. The aluminum base of the rectangular "glass" filter is bolted to a metal bracket which bolts to the head, it is not a direct to head mount. I think everything will bolt up, worst case you might need to make a different bracket. As far as lines they should work. I think they ma...

Welcome to the Boards. You have been looking at videos of the older machines with dry steering clutches, that do not apply to your 450C. A 450C has wet steering clutches and brakes, they run in an oil bath. The clutches are operated by hydraulic pressure, not mechanical linkages like the dry type. T...

Welcome to the Boards. Machine serial number tag breakdown using the 350 Introduction from the JD 350 Parts Catalog: SN = serial number T = Tractor 4 = JD350 F= Crawler - Dozer 3 = Diesel D= (Transmission) Sliding Gear with Reverser Serial number: 101129 (This number falls in the 1969 build range us...

I don't see pulling it as an easy way. Tighten the belt up. Then push in on it with one hand as you turn the fan if needed. It should turn if the plugs are out.

Both tracks spin so the steering clutches are engaged properly to begin with. Now for the rest of what I suggested and asked. The next part of that was to pull the left clutch, while it was spinning, and see if the track stopped. How far did it pull to disengage? Then do the same for the right track...

Remove all 4 sparkplugs so you are not dealing with compression in any cylinder. You should be able to turn it with the fan, with the plugs out. Make sure the belt is tight and you might need to push in on the belt as well. Be sure to turn it in the correct rotation. If you want to get it close with...

Welcome to the Boards. On the housekeeping side of things, don't be surprised to find a moderator has moved this thread to the Late Models Board, that is the board questions about machines starting with and following the first 350s and 450s are normally kept. You have a 450c, the A designates it as ...

Welcome to the Boards. You are working on two different steering systems. Your 450C has wet steering clutches. They do not have pressure plates and throwout bearings in the steering clutch system. They have hydraulic pistons which are engaged with hydraulic pressure when the engine is running. They ...