You can find the manual for almost anything online. As said, you will need to calibrate the ESC. Usually, you hold the button on the ESC down when you power it on to go into calibration mode. But without knowing anything about what you have done to your rig, it's hard to help ya. Youtube usually...
Is your throttle trim zeroed on the transmitter when you turn it on? If your throttle trim knob isn't centered when you turn it on, the ESC can go into failsafe mode and not allow you to run the vehicle.