No main clutch lock?

Your clutch needs adjusting. It’s not snapping over center.

Could be loose if lever is pulling nearly all the way back in the slot in the floor plates

Could be too tight if it has a lot of room to come on back toward the seat if it would.

Most likely it just needs tightening about a 1/5 to 1/4 a turn.

[quote="55HT4"]My d4 7u seems to not have a main clutch lock, I don't know if I'm not doing it right or maybe it was removed but I can't let go of the clutch lever without it disengaging. The transmission group no. is 5h134 (low speed group I believe) if that helps.
Thank You
Josh[/quote]

If you have a dry clutch, you have to rotate the collar one direction or another until you get the "snap" in place.

If it is too tight, it won't snap in place, if it is too loose, it won't snap in place.

I don't have a D4 so I cannot say for sure what your exact experience will be in adjusting the clutch. I believe some people here have some pictures of the manual that show you how to do the adjustment.

My experience with the adjusting bolt is you may not be able to loosen the nut because one side of the nut is locked in place by the side of the mechanism. You may have to loosen by the bolt head instead of the nut. Basically, if you can't loosen the nut, turn the clutch and loosen the bolt.

Once you get that adjustment done, the snap will be very satisfying.

You're right the snap was quite satisfying, I was able to find the procedure in my manual just as you described, loosen the nut the adjust accordingly. Was not fun to access inside the cover as I am not small person and the machine has a logging cage on it, was able to do though after unpinning the main clutch lever and bungee cording the steering clutch levers back. 😊
Thanks for all the help
Josh

You're right the snap was quite satisfying, I was able to find the procedure in my manual just as you described, loosen the nut the adjust accordingly. Was not fun to access inside the cover as I am not small person and the machine has a logging cage on it, was able to do though after unpinning the main clutch lever and bungee cording the steering clutch levers back. 😊
Thanks for all the help
Josh

[quote="55HT4"]You're right the snap was quite satisfying, I was able to find the procedure in my manual just as you described, loosen the nut the adjust accordingly. Was not fun to access inside the cover as I am not small person and the machine has a logging cage on it, was able to do though after unpinning the main clutch lever and bungee cording the steering clutch levers back. 😊
Thanks for all the help
Josh[/quote]

My D5 has the similar issue. I adjusted on it for days and never got a snap. I'd love to know the satisfaction of that handle staying engaged.

[quote="55HT4"]You're right the snap was quite satisfying, I was able to find the procedure in my manual just as you described, loosen the nut the adjust accordingly. Was not fun to access inside the cover as I am not small person and the machine has a logging cage on it, was able to do though after unpinning the main clutch lever and bungee cording the steering clutch levers back. 😊
Thanks for all the help
Josh[/quote]

My D5 has the similar issue. I adjusted on it for days and never got a snap. I'd love to know the satisfaction of that handle staying engaged.

You might try going to one of the extremes and backing it off. Byy extreme, I mean where the lever may resist being pulled back to where the snap should be.

Also, don't be afraid to go to where the lever seems pretty loose. Like, you may be able to achieve the snap when the lever can be pulled and snapped into place with just your finger. Just because you "tighten" the clutch doesn't mean you are going to achieve the snap. I think the snap is generally just on the verge of the clutch lever having some resistance when you pull it into place.

When I started to run a CAT D7 6T dozer in 1958, my boss told and showed me how to adjust the clutch so it would SNAP over center. In my next 2 years before I went into the service, I don't know how many times I had to pull that clutch out. It got to the point that when I started working on it, 1 hour later, I had it setting on the fender. I finally realized and wondered what would happen if I didn't tighten it up that much. I don't know if I ever pulled it again, but it sure was a lot easier to engage it and it never slipped for me either. You can get it to tight and is hard to snap in. catskinner.