Repairs GR 2110 Speed Change Pedal does not engage forward or reverse - Feels very loose

GR 2110 Speed Change Pedal does not engage forward or reverse - Feels very loose. Mower starts up and blades engage but when you release brake and try to press pedal forward it just hits metal forward and reverse switch back. HELP! Ideas ? Thanks in advance! Any way to tow off the lawn to repair? :ashamed: