According to the fault phenomena, judge the fault may be between the head and the disc caused by incorrect distance. Estimated by user before the repairing head disassembly, reinstall the position is not correct.

Then reboot, into the disk, when the "tick tock" sound, trial handle gently pressing cover, "tick tock" sound disappeared estimated is a piece of cover deformation or two setscrews not spin in place caused. Unscrew the two gland bolt, ready to reload. Reloading found which a screw slippage, remove the lower asked Xu, found that the plastic nut inner thread slipping, unable to hold the press cover, the tablet cover slightly tilted and slight incline, resulting in bald collide with a "tick tock" sound. This plastic nut is destroyed, if use glue to reinforce will lead to bracket into a one-time non removable, properly resolve the way is looking together for diameter tip long screw reloading press cover, appropriate force tightened down, you can make the pressing cover securely, "tick tock" sound subsequently disappeared completely.