Drive gear & rubber

On fat PlayStation 2 consoles a worn plastic drive gear is a classic cause of trays that grind, fail to close fully, or report a disc read error even when the laser is perfectly healthy. The same drives use a rubber sled belt or wheel that hardens and slips with age. Both are cheap, replaceable parts that restore smooth, quiet operation.

Symptoms that point here

• symptom Tray that opens partway or stalls closing
• symptom Loud clicking or skipping from the drive sled
• symptom Reads that fail only after the drive has cycled

1. Access the drive assembly
   Open the shell and remove the optical drive. Set the laser ribbon aside carefully so it is not strained while you work on the mechanism beneath.
2. Inspect the gear and rubber
   Look for cracked or stripped teeth on the white plastic gear and check whether the rubber wheel or belt is glazed, slack, or perished.
3. Swap the worn parts
   Lift out the old gear and rubber and seat the matching replacements in the same orientation. A dab of light plastic-safe grease helps the new gear run quietly.
4. Reassemble and verify
   Rebuild the drive, reconnect everything, and cycle the tray several times. Smooth travel and a clean seat usually clear the mechanical read errors.