Hello everyone,
I'm new to the board so bear with me.
I have D-2 5U8522. Great running little tractor, but I have two problems. The other day I was working it and got a leak in the raditor. so I took off the blade and the pump (cat 44) when taking off the hard lines that run to the pump there was no gasket or seal. Is there a gasket or o-ring that goes where the lines meet the pump???
The other problem is that the left steering clutch sticks and will not free up so I'm going to replace it. In the book they show them using a port-a-power to pull the clutch out. Is there another tool that can be used to pull the clutch???

Thanks for the help.

Tim

Yes there is "O" ring seals there to seal the oil in the lines. Look closer there on the lines they may just be hard & flat from old age & heat.As for a puller I think you could use a H-D bar puller set up to pull the clutch off.Leave the nut on part way so when the drum breaks loose from the splines it doesn,t come off & hit you or somebody. At the shop if we didn,t have the hydraulic puller available is when we used the H-D screw puller & when you put all the tension on it you can we would hit the end of the center puller bolt with a heavy blow with a hammer & usually they would break loose.Yes & with the pullers either type you want the best grade studs (bolts) you can get so they will stand the pull stress.

The "O" rings fit flush in a grove. May look like there is nothing there but if they weren't you'd have oil squirting everywhere.

I have used a pick to remove old o rings from my D2 that hat the texture of Coal. It was no wonder they Leaked

as far as the clutches they take some power to pull, Use Grade 8 rod,this porta power is 17 ton, some will use a bottle Jack, I like the idea of keeping my distance and fingers. see pic

I found the o-rings you guys were talking about on the hyd. lines.
Those o-rings look like something that you can get at a hareware store or are they something special from Cat.

They are a standard Buna-N type "O" ring. I get mine in bulk from www.mcmaster.com . A good industrial supply would have them but I don't know about a hardware store. Can't find my notes on the size but I will look in the am.

Got to checking on the "O" rings. As usual Cat used a odd ball dimension that would best fit a metric "O" ring that is 24mm ID x 32mm OD x 4mm thick. These are available from www.mcmaster.com as part number 9262K346 @ $12.94/pkg of 50.
I have also used the much more common AS568 dash size #213 which should also be available at any industrial supply.

Hang on, I'm still checking.......the size I gave you is actually for the dozer cylinder hose connections. I'm checking on the #44 connections and the cross-over valve.

Ok, again:
For the hydraulic cylinder connections use a size # 2-214
For the connections to the # 44 unit use a size # 2-222
For the cross-over valve use a size # 2-219

The previous mentioned 0-rings will also work but the last set is by specification.