PTO shaft U joint greasing

aaluck

Well-known member

Equipment
L4400HST, Bush Hog 276, RDTH60, Speeco PHD, etc
Oct 9, 2019
946
771
93
Snowdoun, AL
Okay. Does anyone have a link to a grease fitting that will "easily" get into the 1/2 inch of space they leave us to grease the u joints on a PTO shaft? Or any tips on this?

I spent about an hour wrestling with one of mine this weekend and ended up with more grease on the zerk than inside the joint.

I have a LockNLube on my big gun (thank you to the forums, I LOVE that thing) and there is NO WAY it's fitting in there. So I'd like to use an old small grease gun with a "special" (maybe angled) fitting just for these U joints.
 

rokhunter

Member

Equipment
BX23S TLB
Dec 28, 2018
90
2
6
Baker, Florida, United States
If it comes to it you can purchase an angled zerk and replace the (presumably) straight ones in the PTO shaft. 1/4" wrench should be all you need if I remember correctly.

Sent from my Pixel 2 XL using Tapatalk
 

bernhardine

Member

Equipment
M4072 (M4D-071), B7000
Jan 14, 2019
77
7
8
Germany
I've got an adaptor fitting for the normal greasegun coupler. It has a 8mm tube, 5" long with a concave tip at the end and a small rubber seal in the tip.
It doesn't klick on the jerk. You have to push it slightly and nearly straight (angle 0-20°) against the jerk. Works great.

The first one I bought over 20 years ago for my Land-Rover (originaly designed for there prop-shafts) but I still use it for nearly all propeller shaft u-joints. Don't want to miss it.

I've got an ebay-link from Germany as an example. Maybe you can get something like that in the US. Or buy it here.

https://www.ebay.com/itm/schmaler-A...888343?hash=item3b09d2ebd7:g:8a4AAMXQltxQ7Sgb
 
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SidecarFlip

Banned

Equipment
M9000HDCC3, M9000HD, Kubota GS850 Sidekick
Oct 28, 2018
7,197
555
83
USA
Simple. remove the PTO shaft and angle the joint so you have the room to grease. Do it all the time. I don't care for the lock and grease coupler or whatever it's called as most every grease couple is adjustable anyway.
 

aaluck

Well-known member

Equipment
L4400HST, Bush Hog 276, RDTH60, Speeco PHD, etc
Oct 9, 2019
946
771
93
Snowdoun, AL
Simple. remove the PTO shaft and angle the joint so you have the room to grease. Do it all the time. I don't care for the lock and grease coupler or whatever it's called as most every grease couple is adjustable anyway.
Truer words have never been spoken.....but, sometimes I have it hooked up and just don't want to unhook it again. Plus on the back (implement side) I never unhook those and have the same problem.
 

wgator

Active member

Equipment
L4701HST, FEL and other stuff.
Jul 28, 2018
482
147
43
NC
Okay. Does anyone have a link to a grease fitting that will "easily" get into the 1/2 inch of space they leave us to grease the u joints on a PTO shaft? Or any tips on this?

I spent about an hour wrestling with one of mine this weekend and ended up with more grease on the zerk than inside the joint.

I have a LockNLube on my big gun (thank you to the forums, I LOVE that thing) and there is NO WAY it's fitting in there. So I'd like to use an old small grease gun with a "special" (maybe angled) fitting just for these U joints.
With this coupler you won't need a separate grease gun for it AT THIS LINK Watch the video at bottom of page.
 
Last edited:

Bmyers

Well-known member
Lifetime Member

Equipment
Grand L3560 with LA805 loader, EA 55" Wicked Grapple, SBX72 BB, LP 1272 mower
May 27, 2019
3,293
3,849
113
Southern Illinois
With this coupler you won't need a separate grease gun for it AT THIS LINK Watch the video at bottom of page.
That should work perfect for my tight spots on the PTO shaft. Just placed an order for one, thanks for posting!
 

SidecarFlip

Banned

Equipment
M9000HDCC3, M9000HD, Kubota GS850 Sidekick
Oct 28, 2018
7,197
555
83
USA
I also use Flips method, but I change implements fairly regularly
As I do but actually it has become less with two tractors now. Some of my driven implements are hard to grease anyway, the drivelines are heavy and long and have various joints as well. Some are constant velocity some are double Cardan and some are ordinary U joints and can be a mix of joints in one driveline depending on the implement.
 

GeoHorn

Well-known member
Lifetime Member

Equipment
M4700DT, LA1002FEL, Ferguson5-8B Compactor-Roller, 10KDumpTrailer, RTV-X900
May 18, 2018
6,040
3,316
113
Texas
Truer words have never been spoken.....but, sometimes I have it hooked up and just don't want to unhook it again. Plus on the back (implement side) I never unhook those and have the same problem.
Disconnecting the driveshaft from the PTO will allow the shaft to be laid-over to the side sufficiently to grease the implement-end U-joint. No need to disconnect both ends.
 

SidecarFlip

Banned

Equipment
M9000HDCC3, M9000HD, Kubota GS850 Sidekick
Oct 28, 2018
7,197
555
83
USA
Disconnecting the driveshaft from the PTO will allow the shaft to be laid-over to the side sufficiently to grease the implement-end U-joint. No need to disconnect both ends.
Exactly....

Of course, most quality drivelines will also have a zerk or two to grease the sliding halves as well.
 

mikester

Well-known member

Equipment
M59 TLB
Oct 21, 2017
3,547
2,009
113
Canada
www.divergentstuff.ca
I use a LNL on a 16 inch flex line and it works pretty good. It's harder to keep a rigid line at the correct angle in tight spaces i.e. U-joint on my zero turn is hard to get at.

I made an adapter using a standard screw-on zerk 3-jaw coupler and a 45 degree zerk fitting to get at a couple of tough to reach fittings on one of my machines.