I have a Husqvarna YTH24V54 that won't start. It has a brand new battery, good fuses, etc, but I realized the parking and transport brakes are not engaging. The pedal and locking switch appear to function properly, as does the transport lever, but I'm still able to push the mower around. I already reached out to Husqvarna, and all they say is take it in for service, which I'm trying to avoid. Can anyone help? Thanks