Just replace drive and worm gears and experiencing problem similar to bentomi and others...unit starts in one direction and reverses after 2 seconds until it hits the upper limit. Speed cup is set as far as it can go but problem persists. Any other suggestions?
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I would have it towed to a different shop for a second opinion. To start at the beginning, if it works in reverse but not drive the linkage is working. When you put the transmission in low or second you are bypassing most of the sensors and valves. You put it in first or second gear and it stays there. It could be a long list of things from the valve body to the pump to a solenoid or sensor. There is a good chance the problem could be fixed without needing an overhaul. You never take a knife to a gunfight, so you wouldn't have anybody but a transmission shop work on a transmission. When they recommend an overhaul, they are pulling your trans out and replacing it with someone's rebuilt out of the crate. No worries on their part.
I have a 1265 and took the cover off (unplug first).
There are screws securing the cover: 2 on each side at top, 2 at either end bottom.
Then I disconnected the chain.
There are 3 hex head screws securing the drive gear assembly (of course they thread from the inside out which makes taking them out a bit time consuming). Take care not to damage the circuit board or other electronic connections.
Then at the bottom of the shaft is the "limit switch assembly" that is clipped into the metal housing. Squeeze the 2 on the outside and it should swing free.
Then at the very end of the shaft there is another plastic gear. It is secured by a 3 prong plastic clip. Pull the outside clips away from the shaft while pushing the center piece back through the shaft. The gear should come off and you can now remove the gear and sprocket assembly up through the assembly.
call 800 528 2817 and order the "Gear and Sprocket Assembly".
I am waiting for the part and assume we reverse the order above to reinstall.
INSPECT OVERRUNNING CLUTCH
1.Slide the overrunning clutch along the shaft.Replace it if does not slide smoothly.2.Rotate the overrunning clutch (A) both ways.Does it lock in one direction and rotate smoothly in reverse? If it does not lock in either direction or it locks in both directions, replace it.3.If the starter driver gear (B) is worn or damaged, replace the overrunning clutch assembly: the gear is not available separately.Check the condition of the flywheel or torque converter ring gear if the starter drive gear teeth are damaged.
1.Do not immerse parts in cleaning solvent. Immersing the yoke assembly and/or armature will damage the insulation. Wipe these parts with a cloth only.2.Do not immerse the drive unit in cleaning solvent. The overrun clutch is pre-lubricated at the factory and solvent will wash lubrication from the clutch.3.The drive unit may be cleaned with a brush moistened with cleaning solvent and wiped dry with a cloth.
Had a similar problem with mine. I took it apart and found that the nut that is on the bottom end of the ram screw was loose. I tightened it and it fixed the problem. That was about a month ago. Now it is doing it again. I'm going to tighten it again this weekend and apply Loc-tite to the threads.
To get to the nut, you have to lay the compactor on its side and remove the plate from the bottom. You'll see a chain that goes around the motor sprocket and both ram screws. You need to tighten the nuts on the ram screws.