Prepare the necessary tools. You will need a paper napkin, knife, small Phillips screwdriver and duct tape. In most cases, the cause of failure of operation of the manipulator is broken wires inside the cable that connects the computer with a mouse. But the reason may be the contamination of the wheel or a blockage of the mouse buttons, which often happens with the old "ball" mice.
Unplug the mouse from the power supply and wipe clean before beginning disassembly. Remove the screwdriver bolts from the bottom of the mouse and carefully remove the lid (in order to remove it, slide it slightly back and up). Push is not necessary – the manipulation should be carried out with ease, otherwise you may damage the grooves, and the arm will not assemble properly.
Eliminate the malfunction. If it is detected in the cable, fix it and insulate the wire with electrical tape. Insert the wire into the pin and ensure that it does not interfere with moving parts of the manipulator (buttons and wheel). Make sure that the wire does not get in the grooves and on the edge of the case, otherwise this may cause malfunction or slow work.
Insert the beveled top of the cap manipulator back into the slots and connect it with the bottom hand pressure. Retighten the bolts. Before spinning, turn the bolts a couple of times counter clockwise that will help just to get into the thread.
Connect the computer turned off for the manipulator, start the computer and then test the mouse. However, if the mouse is powered by USB off the computer's power is not required. If the positioner is properly earned, then everything went well and you coped with the problem. Thus, it is possible to periodically disassemble the trackball to clean it from dust and to prevent breakdowns.