what kind of oil in 955 clutch

Oil is same as engine, there is a screen and a plug under the housing, I guess will hold about 2 1/2 gallons the fuel filters are under the square cover at the front of injection pump you need to take the hood off, there is a drain plug under the housing , ive usaly found about 3 inches of crud in there when i first changed them, oh filters avalible from CAT and the gaskets too
Hope this helps...

The 955 has two drain plugs, one in the cover plate for the screen and the large plug just behind it. Clutch compartment oil capacity is 16 quarts.

The screen should be removed and cleaned at each oil change.

Thank you guys you are always a big help

Hi Team,
not sure how to approach this subject.
At the Dealer we had a lot of trouble with burnt Powershift Transmission clutches when the oil companies removed whale oil from the additive package for engine oils. The replacement for the whale oil was extra slippery in comparison, thus resulting in the slipping/burning clutch components.
Cat then had to reccomend NOT using Engine Oil in the Powershift Transmissions.
The off-hiway dump trucks also suffered reduced braking performance as a result. I would believe this then resulted in Cat comming up with the Transmission Oils we use today.
For a considerable time afterwards Oil Companies continued to recommend Engine Oil for Tansmissions and we continued to see burnt clutches from these machines, the clients when told of the now unsuitability of engine oils in these applications were rightly some what upset!!!
SO I feel in these old master clutches we should be recommending 30 Transmission oil to get past any slippage problems. ON the other hand for any of these old girls only used for Rallies etc. I guess Engine oil would still be OK to make oil types kept in stock at home easier for the hobbiest.
My 2 bob's worth on this for what it is worth, I just felt you all needed to know about this and fill your M/C's according to your needs, being aware if slippage occurs a change of oil to Trans type may cure the problem.
Hope this helps.
Cheers,
Eddie B.


PS the way I used to demonstrate the difference to clients and employees was to rub a sample of the oil between the pads of the thumb and index finger ---the trans oil would allow grip between the finger pads to occur in 3 or 4 rubs and the engine oil would continue to slip easily.

thanks EDB, that is interesting and makes sense I would guess oils have improved vastly and become more speclized since our tractors were made , the 30wt transmission oil is avlalible from cat so maybe good idea to use that or would a universal farm
tractor oil be ok? as it has some additive in it for wet brakes which i guess are simalar to a oil clutch...

Hi Roland,
now you mention it, we finished up using said oil type in the rear axles of the Cat 428 etc. Back Hoe Loaders. We were encountering severe brake chatter--squeal-- and wear in the inboard brake components. Eventually the recommendation came through the system to try the Universal Tractor Transmission Oil. It worked well to overcome the problems mentioned.
This leads me to think it may be too slippery also for a M/C ?
We also tried Hydraulic System Additive and experimented with various dosages giving results ranging from severely diminished braking--too much-- to too agressive braking with chatter and wear. We eventually came up with a ratio about the time the Universal Oil recommendation came through, this became the standard from then on.

Cheers,
Eddie B.

I am just going through the trans of my 955L. I guess I will put more thought into the oil I put in it. Would you recommend the universal transmission oil or go to CAT and get their oil?

Sid, there was a time when you could use the same oil in the engine, trans and hyd of a Cat. That was back untill the early to mid 80's. Oils have become more specilized since then and perform much better giving greater component life. Use diesel engine oil in the Engine and Hyd's but only TDTO4 (Trans drive train oil) or equivilent in anything with a clutch. Powershift Trans, Steering Clutches or Wet Flywheel Clutch.
Later Bob

Is that TDT04 oil a CAT oil or available generic?

I am sorta new to the building of the CAT's, have been in the John Deere tractor side of equipment for a long time so please forgive my ignorance here.
But, I have fell in love with the big CAT's!!!