Method for assembling a disk drive using a shipping comb

A method for assembling a disk drive having a ramp, comprising the steps of:

• providing a head stack assembly (HSA) having a plurality of drive arms, each said drive arm having a locating hole therein, and a base cover having a securing hole for mounting the HSA therein;
• providing a shipping comb for assembling the disk drive comprising a comb block;
• wherein the comb block comprises:
• a locking portion having a comb pin hole forming therein;
• at least one spacer and a connecting beam to connect the locking portion and the at least one spacer;
• a comb pin received in the comb pin hole of the locking portion;
• and a controlling system to engage with and control the comb pin to move in the comb pin hole;
• inserting the comb pin of the shipping comb into the locating holes in the HSA to assemble the shipping comb with the HSA together;
• positioning the assembled HSA and shipping comb on the base cover of the disk drive;
• installing the HSA on the base cover via a bearing device of the HSA;
• rotating the assembled HSA and shipping comb to park the HSA on the ramp and aligning the comb pin with the securing hole;
• pushing the comb pin into the securing hole to lock the HSA in the base cover;
• assembling a latch device and a top voice coil magnet on the base cover;
• rotating the shipping comb to a position where the shipping comb is not interfered with the disk drive;
• and
• pulling out the shipping comb from the HSA.