Slew Bearin Seal Takeuchi 2017 TB 216

[jodb69]

Hi All

Is it an easy job to replace the slew bearing seal?
I looked underneath yesterday and saw some fresh grease and a small section of the seal hanging down, must of caught something.
I just pushed it back up for now.

Also could someone shed light on what the 3 grease ripples are actually for on the front of the machine, the manual states its for the slew, but why 3 of them, iv just been putting 10 pumps in each every 20 odd hours that a hire bloke told me to do once , I'm not convinced tho..

 

[Stroppymonkey]

Some machines tell you how often to grease them in terms of hours.
In my younger days I assumed that the number represented the required number of daily pumps 🫣

 

[Bri963]

Hi All

Is it an easy job to replace the slew bearing seal?
I looked underneath yesterday and saw some fresh grease and a small section of the seal hanging down, must of caught something.
I just pushed it back up for now.

Also could someone shed light on what the 3 grease ripples are actually for on the front of the machine, the manual states its for the slew, but why 3 of them, iv just been putting 10 pumps in each every 20 odd hours that a hire bloke told me to do once , I'm not convinced tho..

Firstly, what make and model? I’d say it’s more likely two are for the swing bearing, one for the back of the offset ram.

secondly, what does the maintenance schedule say?

If the bearing seal has failed, chances are the bear is on the way out, if it hasn’t failed already. Get someone to push down with the bucket while you check vertical movement. If there’s any movement at all the bearing is failing.

 

[jodb69]

Firstly, what make and model? I’d say it’s more likely two are for the swing bearing, one for the back of the offset ram.

secondly, what does the maintenance schedule say?

If the bearing seal has failed, chances are the bear is on the way out, if it hasn’t failed already. Get someone to push down with the bucket while you check vertical movement. If there’s any movement at all the bearing is failing.

Takeuchi tb216 2017

 

[Storrsy]

Hi All

Is it an easy job to replace the slew bearing seal?
I looked underneath yesterday and saw some fresh grease and a small section of the seal hanging down, must of caught something.
I just pushed it back up for now.

Also could someone shed light on what the 3 grease ripples are actually for on the front of the machine, the manual states its for the slew, but why 3 of them, iv just been putting 10 pumps in each every 20 odd hours that a hire bloke told me to do once , I'm not convinced tho..

The slew bearing can be over greased, it can blow the seal out of you pack too much grease in. I only do mine once a week (approx every 40- 50 hours) and when I do make sure you grease at every 90 degrees of the slew so that the grease gets evenly deposited around the ring.
The 3 nipples starting from the outside are,
Rear of offset boom ram,
Slew ring/bearing
Slew motor pinion.

The middle one is the one that needs greasing at every 90 degrees.

 

[V8Druid]

slew ring bearing seal is a 'cut to length' item, not endless and is a dust excluder, combined with keeping the right amount of grease in the ring gear -- it's a push fit and should go back in easily enough as long as everything is clean and the groove clear of crud - if grease is showing under the seal lip its more than enough at that point - wipe it off, rotate and flatten the seal again

 

[Storrsy]

slew ring bearing seal is a 'cut to length' item, not endless and is a dust excluder, combined with keeping the right amount of grease in the ring gear -- it's a push fit and should go back in easily enough as long as everything is clean and the groove clear of crud - if grease is showing under the seal lip its more than enough at that point - wipe it off, rotate and flatten the seal again
View attachment 73333 View attachment 73334

Whats that off- baby Jake?

 

[V8Druid]

Whats that off- baby Jake?

my VA-r slew ring when I broke the VA-r mounting in '16 slew ring was fine

 

[jodb69]

slew ring bearing seal is a 'cut to length' item, not endless and is a dust excluder, combined with keeping the right amount of grease in the ring gear -- it's a push fit and should go back in easily enough as long as everything is clean and the groove clear of crud - if grease is showing under the seal lip its more than enough at that point - wipe it off, rotate and flatten the seal again
View attachment 73333 View attachment 73334

Hi

 

[jodb69]

Hi

There is about an inch that has dropped, I tried pushing it back in but keeps popping out.
Can you replace it without stripping it all down?

 

[V8Druid]

There is about an inch that has dropped, I tried pushing it back in but keeps popping out.
Can you replace it without stripping it all down?

is it one of the cut ends that's popping out or in the middle of the seal length ?
as said, the channel in which the seal is held needs to be TOTALLY clear of crud.
if it's popping in it's length, I'd pull it from the closest end, past the problematic area and ensure the groove is spotless, clean all the surrounding surfaces and then work the seal back into it's groove, back towards the free end - it's almost certainly 'slipped back' in the groove to the bulging area and will need flattening back in from there - doubt you'll ever keep it in without ensuring it's clean, crud free and flattened back into its correct shape and place, to the point at which it meets.
not going to be an easy job in situ, I doubt

 

[jodb69]

is it one of the cut ends that's popping out or in the middle of the seal length ?
as said, the channel in which the seal is held needs to be TOTALLY clear of crud.
if it's popping in it's length, I'd pull it from the closest end, past the problematic area and ensure the groove is spotless, clean all the surrounding surfaces and then work the seal back into it's groove, back towards the free end - it's almost certainly 'slipped back' in the groove to the bulging area and will need flattening back in from there - doubt you'll ever keep it in without ensuring it's clean, crud free and flattened back into its correct shape and place, to the point at which it meets.
not going to be an easy job in situ, I doubt

No its not on the end as its a loop hanging, would ut be worth just pulling the lot and changing it.

I certainly wont be removing the slew myself anyway, so would be and in situ job

 

[V8Druid]

No its not on the end as its a loop hanging, would ut be worth just pulling the lot and changing it.

I certainly wont be removing the slew myself anyway, so would be and in situ job

as said - " pull it from the closest end, past the problematic area and ensure the groove is spotless, clean all the surrounding surfaces and then work the seal back into it's groove, back towards the free end "

No I'd not even contemplate removal of the ring gear for such a minor issue - it's just going to be a difficult thing to access in situ, due to lack of space.
I'd certainly not pull it out completely without first trying to re-seat it as described above - it should reseat, as long as there're no obstructions to it doing so
fitting a new seal wiper will entail accessing the entire circumference of the ring, rather than just the area you currently need to

I'd try and get it up on some half sleepers - couple at least each side to make life a bit easier and maybe get the troublesome area out the back/between the tracks, to give you best access in what is essentially a very tight area to do anything