User Manual EM303B General Purpose Inverter 2.5 Disassembly and Assembly of Keypad Generally it is unnecessary to disassemble the keypad, and just remove the cover to assemble and wire. On special occasions, disassemble the keypad by following steps. Remove the front cover: For EM303B-0R7~7R5, push the cover vertically from the bottom with two hands, and then lift up outwards. See Figure 2-3. R - R - ② ② ① ① Figure2-3 Remove the Front Cover Disassemble the keypad: Put your figures in the insert on the top of keypad, press down slightly, and pull outwards, then the keypad can be removed. See Figure 2-4. 19