| 摘要 |
A disk drive unit includes a first cover having a first part of magnet component and a head stack assembly mounted on the first cover; and a second cover assembled with the first cover, which has a second part of magnet component, a spindle motor, at least one disk and a ramp adjacent to the disk; wherein a ramp tool opening is formed on the first cover corresponding to the ramp, through which a ramp tool can extend to hold the head stack assembly in a loading status. The invention also discloses a ramp tool used for assembling the disk drive which has its disk and HSA assembled in two different halves, which includes a tool body; and a holding means extending from the tool body to hold a lift tab of a head stack assembly in a loading status, wherein the lift tab is engaged with a ramp in the disk drive unit.
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