Axle Seal and Gear/Chain Oil

[jeff4605]

My 753 nneds a rear axle seal replacement, where is the gear oil fill? Do I need to remove the top of the chain boxes just to add oil? and if so, what is the level of fuild? and what is the recommended fuild? Thanks

 

[Tazza]

Plain old engine oil.
The correct level is when you remove the plug from the front on level ground and oil just starts to trickle out. Put the plug back in and you're right!
If you have never done the chaincase oil, you may want to drain it, mop out the chaincase and re-fill. You will then be good for 1,000 hours.
Removing the top inspection plate is easiest for large amounts of oil. If you only want to add a little you can use the level plug i mentioned on the front of the chaincase. It comes out with a 1/2" wrench.

 

[jeff4605]

Plain old engine oil.
The correct level is when you remove the plug from the front on level ground and oil just starts to trickle out. Put the plug back in and you're right!
If you have never done the chaincase oil, you may want to drain it, mop out the chaincase and re-fill. You will then be good for 1,000 hours.
Removing the top inspection plate is easiest for large amounts of oil. If you only want to add a little you can use the level plug i mentioned on the front of the chaincase. It comes out with a 1/2" wrench.

Thanks Tazza, So is the front fill plug connected to the back axles as well? or are they seperate tanks? I need to replace the rear seal. If the loader is on an incline the fluid drips out of the rear axle. I did find a maintance manual, it says to use same fuild for chain case as used in the hydraulic/Hydrostatic system. Thanks Jeff

 

[skidsteer.ca]

Thanks Tazza, So is the front fill plug connected to the back axles as well? or are they seperate tanks? I need to replace the rear seal. If the loader is on an incline the fluid drips out of the rear axle. I did find a maintance manual, it says to use same fuild for chain case as used in the hydraulic/Hydrostatic system. Thanks Jeff

Jeff
Yes that is the level plug.There is only one chaincase on a genuine Bobcat for all 4 chains/wheels
Ken

 

[jeff4605]

Jeff
Yes that is the level plug.There is only one chaincase on a genuine Bobcat for all 4 chains/wheels
Ken

Thanks skidsteer.ca That sounds easy. I guess next question is a puller need to get hub off tapered axle or can a hit with a hammer pop it off?

 

[farmboy55]

Thanks skidsteer.ca That sounds easy. I guess next question is a puller need to get hub off tapered axle or can a hit with a hammer pop it off?

What I do is drain my hyd tank into the chaincase doing a service on the hyd system new filters and oil provided it.s not contaminnated with anything

 

[farmboy55]

What I do is drain my hyd tank into the chaincase doing a service on the hyd system new filters and oil provided it.s not contaminnated with anything

the hub is on a tapered / keyed axle tube I made a heavy duty puller that I put presure on it with then hit it with a sledge hammer stand back it will fly off

 

[Tazza]

the hub is on a tapered / keyed axle tube I made a heavy duty puller that I put presure on it with then hit it with a sledge hammer stand back it will fly off

What i do is two hydraulic bottle jacks, one on eash side of the hub, loosen the bolt a few turns and hit the back with a hammer. If you keep the bolt in there, the hub will not fly arcoss the shop and damage anyone or anything.
Just like this:

 

[jeff4605]

What i do is two hydraulic bottle jacks, one on eash side of the hub, loosen the bolt a few turns and hit the back with a hammer. If you keep the bolt in there, the hub will not fly arcoss the shop and damage anyone or anything.
Just like this:

Thanks, this Forum is GREAT! great idea's..