Man F2000 98 - ZF Gearbox Gears Jump Out After 30 Minutes of Driving

Question

Hello. In the Mana F2000 460HP ZF gearbox, gears jump out on the upper gearbox, but the jack does not change position. To put the gear back in again, you have to knock out and knock the gear in again while hammering, does not always jump. I would add that problems start only after about 30...

TomasAGC · Answer

Chest to review, do you have a retarder?

darfur5 · Answer

So for starters - drain the oil from the box and pay attention to what is in it, steel and brass filings. If you find nothing in the oil, pour it fresh and do a test drive, as there will be no improvement, you will need to disassemble the box.

kaczy2214 · Answer

The gear is lost and the shift jack stays in place? If so, you can check the slide's fuse but it would be too simple, it is likely that the teeth on the synchronizer have already worn out and therefore does not hold gears. You can also unscrew the can from high / low and see if the nut from the slide has loosened somehow. But rather everything will end up replacing the synchrones

Adas220 · Answer

This is how the retarder is, and like my friend Kaczy2214 asked the jack, he stays in place.

Eragon1976 · Answer

Please check the group change valve for leaks. In my opinion, if the synchronizers were worn, there would be a rasp when changing the group.

kaczy2214 · Answer

Worn teeth of the synchronizer cause the gears to jump out, they are milled under the account to clamp the synchronizer under load as they wear out.

Adas220 · Answer

This valve was bought and replaced, but it did not help, so this chest must be disassembled

Added after 8 [minutes]:

I still have a question to get to these synchronizers, you have to pull out the whole crate or is this the rear crankcase enough?

kaczy2214 · Answer

It is better to pull the whole box upright on the clutch housing and fix it conveniently and stress-free, repair on the spot is feasible but I do not recommend a waste of time and nerves. I also recommend using a professional, because if someone did not do it, it can get out of this mess

Cobrat · Answer

You won't do anything without the press, even if you puncture the crate, also as a colleague wrote above give it to someone who does such things. You can remove the crates yourself, they will not delete you for assembly and disassembly

Adas220 · Answer

The press is there, but from what I remember it is necessary to know which mode they should come off from the roller, and if I remember correctly I used to undress such a chest so much that without a retarder I will answer around Friday-Saturday as I take it and describe what it is the problem was. Regards

Cobrat · Answer

You associate well

, with the retarder the difference is that you unscrew a few more screws and remove it. Act in that case.

PS. However, if you were to take up an unequal fight, I would like to post a slap. On page 25 you can see clearly what goes down which way from the roller. (just not a fraction of 04.300

)
Schemat ZF...16s181.pdf Download (2.76 MB)

kaczy2214 · Answer

One more small note, when disassembling the shift ring, be careful not to splash stones and springs because you will be looking all day for where it fell and also replace them because it also holds the slide in place

Added after 3 [minutes]:

It is here

Adas220 · Answer

Hello, the problem is solved and I replaced the retarder wheel, the whole complete synchronizer, this ring on the synchronizer with stones that this paw moves and new oil. I bought Euroricambi parts. It describes how I see because I do not do it on a daily basis so I do not know professional names.

Man F2000 98 - ZF Gearbox Gears Jump Out After 30 Minutes of Driving

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