Cub cadet 44 inch 20 HP kohler engine. Dies when brake released. By passed seat switch, still does same thing.

It sounds like the seat switch not working correctly

Check your seat switch. What model Cub Cadet is it?

check the drive belt on hydraulic pump under you seat

Cub Cadet has five models in their new Series 1000 lawn tractors, all powered by Kohler engines. Cub Cadet models -- as several other lawn equipment brands -- are manufactured by MTD Products.

The Cub Cadet LT 1045 has a 20-hp Kohler single-cylinder engine, with an aluminum block and cast-iron sleeve for longer life. It has a full-pressure lubrication system with spin-on oil filter for easier maintenance. This engine is not as powerful or as long lasting as the Kohler V-Twin OHV, which is available in other models in the line, but the LT 1045's engine is still solid enough to provide years of mowing.

The hydrostatic (automatic) transmission is a good match with the engine and provides sufficient grip to cut grass on moderate inclines. Power is transferred from the engine to the transmission by a heavy-duty Kevlar belt rather than a more expensive shaft drive. A Kevlar belt also drives the three cutting blades.

The mowing deck cuts a swath of grass 46 inches wide at one pass, and is removable for service and cleaning. Four anti-scalping wheels help keep the deck from scalping grass on uneven ground. The cutting height is manually adjusted from 1-1/2 to 4 inches. The turning radius is 18 inches, which standard for lawn tractors. This model is intended for use on 1- to 2-acre lawns without many turns or small obstacles.

there is a safety switch that is attached to your parking brake ander the side board. Check that out.

how much voltage does battery have? should show 13.2 to 13.6 volts....

check your air filter. hope this helps

you could splice the wires and by pass the switch all together.

i have a cub cadet 2130 2000 seris but it quits when i rekwase the brake pedal

Check the wires to the seat switch. Under the seat you should find 2 wires connected to the seat. Unplug them, and use a jumper on the end that goes into the body of the mower. Try it again, and if it works, replace your seat.