First of all I apologize if this is posted in the wrong category. My forklift is a Towmotor T40 which I believe was manufactured in the late 60's and the company became Caterpillar in the 70's? Anyway the brakes have gone out on this unit and I have no idea where to look for parts. The brake reservoir is full but still no brakes. I have not pulled the wheels. Is it likely the brake cylinder or the actual brakes themselves. Any input appreciated. Thanks,

Shane