Noisy TA

[Anonymous-0]

MTD/Troy Bilt 16hp tractor with"pedal-drive"automatic.Tractor runs/drives well,but has an almost hydraulic type whine at all speeds.First one of these I've had,is noise"normal"or indicative of TA problems?Appears to be pretty much a "normal" MTD fwd/rev aluminum TA.

 

[JT]

If it is a hydrostat, that is normall, if it is an auto drive, it has two drive belts, has a sliding variator under tractor, with aidler pullies, and they all have bearings that can growl. If you have a lever between your legs for forward/backward, and a speed change lever on fender, it has a belt driven variator, take off that cover, you can see belts and idlers there
Jim

 

[Wrench Spinner]

Typical of MTD TA's is if it only makes noise when driving the input shaft bearings have failed and caused the input shaft bevel gear to mis-align with the driveshaft bevel gears thus wearing them as well.

Also, The driveshaft bushings will wear and cause a mis-alignment of the bevel gears to the pinion gear and cause noise.

In either case the TA needs to come out and opened for inspection and all worn parts replaced.

 

[Anonymous-0]

Lovely ,guess it goes in the line for the work table......