Master Lock 175D Combination Lock Owner’s Manual

June 8, 2024
Master Lock

Master Lock 175D Combination Lock

Master-Lock-175D-Combination-Lock-PRO

How to Change the Combination

To Open the Lock the First Time: SET the combination to 0-0-0-0. DEPRESS shackle and PULL open.
To Set Your Own Combination:
( REMEMBER: Combination can only be set when lock is open.)

  1. INSERT reset’ tool (enclosed in package) in hole on side of lock.
  2. PUSH key in and TURN key 90 in either direction (key automatically stays in this position). Failure to exert force while pushing key in will result in a failed attempt to set or reset the combination.
  3. SET wheels to the desired combination.
  4. TURN and remove reset tool. Lock is now set to new combination. BE SURE TO RECORD YOUR COMBINATION.

To Lock: SCRAMBLE the wheels and CLOSE the shackle.
To Reopen: DIAL your combination and DEPRESS shackle.

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