JDcrawlers Messageboard

The interference fit between the pin and pin holes in the rails hold it.

Confirm the steering clutches are working properly by pulling the left steering lever, just enough to release the steering clutch, while pushing against something solid. Does the left track stop turning without the brake and the right one keeps driving? Do the same (load it so you can tell the clutc...

mattga8597,

I sent you a PM, with an answer to the question you PM'd to me, about your serial number.

Jim

As Lavoy posted, it doesn't sound like you have a C model. Post your full serial number and we can tell you what it is. You have say you have a technical manual. What is the publication name and number?. As far as inspection, if it is a dry clutch/brake, you can look and try to see how thick the lin...

I am guessing the straight 450; as the parts catalog (PC922) lists power assist steering components in Section 45 STEERING, BRAKES, HYDRAULICS AND FINAL DRIVE. I know of one machine I de-coded the serial number on for a fellow, to ID it as a straight 450 and his had power assist on it. I don't know ...

You will need both 1403 and 1404. I don't think those are made so that you can reach thru the port and hold it with a punch in a hole. You can try putting and keeping some air pressure to that side of the cylinder. The rod will slide completely in if it hasn't, tap it in if it doesn't as you don't w...

Good morning, Why they didn't have all the technical info in one manual is a question but this is where the TM1404 Technical repair manual will come in handy. It has the actual repair procedures. You posted in the past you thought you had the test and operation manual TM1403. Here is a link to the p...

Good morning, I think the parts catalog has your answers. The tach drives off the back end of the cam. Look at the housing (back plate of the engine) on the surface above the starter, behind the block. Here is a link to the page in the catalog showing it. Use the scroll arrow to advance to next page...

The plug hole being higher makes a vent when the oil is pumped in. If you put oil in the plug hole you would need a probe, whether pumped or gravity fed, small enough to allow air to vent around the probe, and the oil going in might restrict the air coming out. That would lead to some oil pushing ba...

I don't know for certain, but I think you have to pull the nose off. The manual for my 450E says to pull the nose and I don't see that it will pivot. Looking at the parts catalog I think the 550 sheet metal is similar to the 450E, the nose has tabs that extend inside the frame rail channels which wo...

Yes the plug is above the grease fitting, but putting the plug in before removing the grease fitting makes a vacuum and only a little gear oil will drip out. If you pull the grease fitting out first the oil will run out as the open plug hole acts as a vent. Kind of like the difference between pourin...

You may want to make all the adjustments, in the order the book calls for to rule those out. There could be wear affecting the stroke of the steering valve such that the timing of clutch release to brake apply is off.

Welcome to the forum. I don't have a real answer for your problem but will throw a couple things out for thought. First what manual(s) do you have? It looks like the manuals for a 450G are Operator's manual # OMT163974, Parts Catalog # PC2154, Technical Manual TM1403 - Test, and Technical Manual TM1...

Hello, It could be from any of several places. I would recommend dropping the belly pan if you can't identify the source from the sides, looking under the seat, or by pulling the floor boards. Bet that is not what you hoped to hear, but getting the right diagnosis is more effective, and often less c...

Are your manuals reprints of the John Deere manual numbers I had in a reply to one of your earlier posts or third party manuals? If you have a reprint of the JD operator's manual I posted it should be on page 59 for checking the transmission and steering clutch oil level. They show changing the tran...