Buying and Fixing 1966 CAT 955 

On my case 580 B modal, we picked up the tractor for free because the brakes would not work, so I crawled under it a discovered the housing that holds the turning cutting Brake , was broken off corners ,, we welded the corners and I had to find 4 (I think 1 inch steel balls ) and new clutch pack with splines on the shafts and put them back in and it had brakes again, this set screws are a good place for vibration to get the loss, good vlog , just slow the moving of the camera ok, thanks BigAl California.

She Sounds Well !!!

Holy BEGEEZUS ! 😧 Breaks are Too tight !🥵 You run in the screw until firm contact BACK OFF TWO TURNS .....TIGHTEN LOCK NUT !! CHECK YOUR MANUAL for proper adjustment. great video thanks

That machine should be using 1540 motor oil in that gearbox and the transmission, not hydraulic oil it's too thin. Those brake adjusters are supposed to be tightened and then backed off one and a half turns. You likely fixed it by adding oil or repairing that line. Those pedals also control the steering clutches, the screen that you had out is on the suction side of the steering clutch pump, if it has any leaks that pump won't pump. The suction line goes from the bottom of the gearbox where you were adjusting, it's hidden by the skid pan but it's on the front side bottom of that gearbox, the suction line goes up to that filter strainer that you had out, another line will go off from the filter strainer up to the front of the the transmission to the pump it's located between the front of the transmission in the back of the engine, that line that you replaced is the one going from the strainer to the steering clutch pump, and it's of course driven off the front of the transmission, the pressure side from the pump goes back to the top of the gearbox probably through another filter, and then to the steering clutch hydraulic assist, that's back on the top of that box where you were doing the steering clutch brake adjustment. Anyways it sounds like you got it fixed, nice machine!

Slew Brake adjusters have a Detent as per the Click to keep em in situ

pump pressure down seal leak o clutches

Working on heavy equipment over the years found out

Needs REVS at full to slew think your Safety Lever is in Locked Position - Needs to be Down Unlock (to block your Exit of the Machine)

Your moving the camera way to fast , you ever hard of sea sickness , well you got me plenty sea sick, wow , thanks buddy, love ya , thanks BigAl California

Usually just an adjustment

*Promosm* 💕

it uses 30wt motor oil in all compartments except final drives. trans, engine, hydraulics everything.

Thats a 955 H series my dad bought one of those new in 66