lf, after using the reverse-gear unit for a long time, shifting (from forward speed to neutral or from reverse speed to neutral) becomes particularly difficult, it is advisable first to check the status of the control cable and of its relevant box. Then, if necessary, unlock the nut ref. 57 (spanner 13) and mantein the screw ref. 28 in its position with an allen wrench (4 mm.). Than rotate clockwise the screw ref. 28 by a 1/4 of turn and lock the nut ref. 57. lf one or both clutches slip,
very well explained...a topic which is not covered enough!...i wish to know...in the case of the Mechanical gearbox...say the cable snaps...as has happened with my throttle cable...can one manually shift it in gear and will the lever stay in that position? ---Cheers Edw
Hi, what is the material on the matching surface of the Schakelkonus on the scroll gear, and can the material be replaced. Excellent detail, well explained. Great vid thanks very much.
Hi Ziggy, thanks for the kind words. As far as I know the friction material cannot be renewed. The bonding between the conus and the material needs to be perfect + resistant to the oils used. The exact compound of the material is a bit of a company secret. When you have to get the boat moving, typically it's possible to rotate the conus 180 degrees as usually only the forward material is worn.
Mike, thanks for watching. When the cone (sliding middlepart) is stuck in itś counterpart no'thing is broken, it iser just pushed in there with too much force. To get it unstuck, you rotate the propellershaft. So it's not really a "fix", itś more a matter of putting the parts back in the position the manufacturer wanted them to be. There can be other reasons for a gearbox to appear stuck, caused by the control cablesiff, . If the control cables get stif, don use oil as the plastic inner surface can swell. You can try PTFE spray, but usually replacement is best since you can't remove the worn surface.
@@VETUSGLOBAL Thumbs up on your very clear explanation about how a gearbox works. Thank you. The answer to the problem of a gearbox stuck in gear remains unclear. If the gearbox is stuck in gear as you described above, the prop shaft is already rotating. How does one disengage the prop shaft? At the moment this is my issue: Frequently, when shifting from either forward or reverse into neutral, the lever moves smoothly to neutral position but the prop shaft doesn’t disengage. By nudging the lever past neutral I can usually disengage the clutch cone from the gears but not always. Is there a way to facilitate a smooth, complete, reliable disengagement from the gear?
Good demonstration of how a reversing gear works, but not really a "how to fix". The only "how to fix" they offer is to turn your prop shaft by hand. In the real world, that doesn't always, in fact I'd say rarely works, especially if there's a serious problem. They don't go anywhere near all of the other problems there could be, nor show real examples. Hence, I'd say, a little misleading title. I'll send you a totally siezed gearbox to try doing the same with!
Excellent presentation with a clear and precise explanation on the workings of a simple marine gearbox.
Thank you for posting this. New sailor with lots to learn, badly corroded gear lever and a feathering prop. I am much better informed.
lf, after using the reverse-gear unit for a long time, shifting (from forward speed to neutral or from reverse speed to
neutral) becomes particularly difficult, it is advisable first to check the status of the control cable and of its relevant
box. Then, if necessary, unlock the nut ref. 57 (spanner 13) and mantein the screw ref. 28 in its position with an allen
wrench (4 mm.). Than rotate clockwise the screw ref. 28 by a 1/4 of turn and lock the nut ref. 57.
lf one or both clutches slip,
🎉🎉🎉🎉🎉salute your hard work sir, how can I buy this one gearbox please reply 😊
If you like this content, please give a thumbs up!
very well explained...a topic which is not covered enough!...i wish to know...in the case of the Mechanical gearbox...say the cable snaps...as has happened with my throttle cable...can one manually shift it in gear and will the lever stay in that position? ---Cheers Edw
Dear Edw, thanks for watching. A mechanical gearbox will stay in gear if you change gears manually.
Grateful
Would a mechanical gear box hold up on a 1 ton truck ? I would love to have an auxiliary 1 to 1 reverse
Asking where to purchase 7:56
Please see the inside plus the unit of measure
Hi, what is the material on the matching surface of the Schakelkonus on the scroll gear, and can the material be replaced. Excellent detail, well explained. Great vid thanks very much.
Hi Ziggy, thanks for the kind words. As far as I know the friction material cannot be renewed. The bonding between the conus and the material needs to be perfect + resistant to the oils used. The exact compound of the material is a bit of a company secret.
When you have to get the boat moving, typically it's possible to rotate the conus 180 degrees as usually only the forward material is worn.
For me stay on bakIt's stuck on the reverse gear, it won't move, no matter what I did, it didn't get rid of it, what should I do?
Geert-Jan, please explain how to actually "fix" the stuck-in-reverse problem. Should I simply make sure the cable is lubricated?
Mike, thanks for watching. When the cone (sliding middlepart) is stuck in itś counterpart no'thing is broken, it iser just pushed in there with too much force. To get it unstuck, you rotate the propellershaft. So it's not really a "fix", itś more a matter of putting the parts back in the position the manufacturer wanted them to be.
There can be other reasons for a gearbox to appear stuck, caused by the control cablesiff, . If the control cables get stif, don use oil as the plastic inner surface can swell. You can try PTFE spray, but usually replacement is best since you can't remove the worn surface.
@@VETUSGLOBAL Thumbs up on your very clear explanation about how a gearbox works. Thank you. The answer to the problem of a gearbox stuck in gear remains unclear. If the gearbox is stuck in gear as you described above, the prop shaft is already rotating. How does one disengage the prop shaft? At the moment this is my issue: Frequently, when shifting from either forward or reverse into neutral, the lever moves smoothly to neutral position but the prop shaft doesn’t disengage. By nudging the lever past neutral I can usually disengage the clutch cone from the gears but not always. Is there a way to facilitate a smooth, complete, reliable disengagement from the gear?
من اي بلد وكم سعر الجير
Is this available in the Philippines?
ruclips.net/video/4PYGeApe210/видео.htmlsi=pvsmO4x1c4wOodm7
How we can buy a such gear box. ? How can we make orders?
ruclips.net/video/4PYGeApe210/видео.htmlsi=pvsmO4x1c4wOodm7
what the name of this gearbox , where can i get this ?
ruclips.net/video/4PYGeApe210/видео.htmlsi=pvsmO4x1c4wOodm7
My caronti of Bangladesh i ma banglai your gearbox whot ranige 4.5hp go riplay
How much to gearbox???
ruclips.net/video/4PYGeApe210/видео.htmlsi=pvsmO4x1c4wOodm7
My gearbox won't go into reverse
How much sir
ruclips.net/video/4PYGeApe210/видео.htmlsi=pvsmO4x1c4wOodm7
Good demonstration of how a reversing gear works, but not really a "how to fix". The only "how to fix" they offer is to turn your prop shaft by hand. In the real world, that doesn't always, in fact I'd say rarely works, especially if there's a serious problem. They don't go anywhere near all of the other problems there could be, nor show real examples. Hence, I'd say, a little misleading title.
I'll send you a totally siezed gearbox to try doing the same with!
Also, I don't think it applies to direct drive gearboxes.