John Deere D120 Blades will not engage . This John Deere D120 would not engage the mower blades , because the blade brake was worn out and let the brake travel past the pulley and get wedged into the pulley . the brake pads were john deere GY21943. There may be a better way to install the blade brake . John deere mower blades not engaging . The engagement cable seems to work good on thid D120 john deere. Many John deere 100 series lawn tractors may have this issue. Lawn tractor repair . wtbm123
