|
The transmission sump and torque tube hyd reservoir are separate. The dip stick on the triple range cover is hyd oil about 2 gals (10-30 motor oil was factory fill). The drain plug is on the bottom of the torque tube just fwd of the flange that mates the torque tube to the transmission. The transmission oil dipstick is under the seat aft of the shifter cover and left of center. The drain plug is on the bottom aft of the axel center line and just to the right of the drawbar. The drain plug may be recessed head and hard to spot unless you crawl under there. The transmission holds from 5 - 7 gals gear oil, original was 90 wt. The axles are hollow so if you have a lot of crap in the oil, tilt the tractor each way to ensure they drain completely and carry out some of the sludge. The 310 steering cylinder has a spool valve that directs the oil to either side of the piston in response to the drag link movement. Being the lowest point, it may have sludged up. The interlock blocks on the control valves are spring loaded spool valves and will not move properly with debris or sludge. Personally I would disassemble and clean every thing in the hyd system if hoses were found plugged. You probably won't have to get into the control valves but definitely the interlock blocks if the symtoms persist. What did you find in the return filter? The oil flow is into the center of the element and out through into the sump. If the debris was confined to the inside of the element you lucked out. If on the outside of the element or there was a hole blown in it, break out the wrenches and start the the split otherwise the debis in the sump will haunt you forever. Aaaaughhh, my typing finger just broke. Joe
| 
