Thanks very much, Allen. The box has letters 101R there, so it confused me. Now I understand the wiring. The two red wires and the green one go left to the salt generator. Five wires to the right. The two connected to terminals 2 and 4 go to the pump, and the other three (the blue wire, and the two connected to terminals 1 and 3) connected to the power supply (the blue wire connected to the ground wire). Thus, there is no ground wire to the pump, but the salt generator is grounded. So, I think I can just add a ground wire for the pump? Thanks again.You found information for a 120V T101 timer. You have a 240V T104 timer.
Please get an electrician involved.