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Frequently Asked Question


Lost Combinations- Page 2
Someone was playing around with my backpack lock and accidentally reset the combination. Now neither one of use knows the correct combination. Is there any way to reset this lock back to "0" and assign a new combo?

Unfortunately, this lock is not resettable without knowing the combination that was assigned by the owner. It's most likely that you will need to purchase a new lock.

I have a brass padlocks #175 or #177 from Master Lock that has a resettable combination. I would like to have the lock to a different combination, but have lost the instructions for doing this. Can you help me?

Models #175 and 177:

  • Insert reset tool (enclosed in package) in the hole on side of lock.
  • Push reset tool in and turn 90 degrees (in either direction). reset tool automatically stays in this position.
  • Set wheels to desired combination
  • Turn and remove reset tool. Lock is now set to new combination
  • Record your new combination in a safe place.
How do I reset the combination on my bike or cable lock? It has a resettable combination. I would like to reset the lock to a different combination, but have lost the instructions for doing this. Can you help me?

Please look for specific directions under the model number of your lock.

Models # 1520,1522, 1523, 8168 and 869:

  • Twist the collar surrounding the cable counterclockwise & remove it.
  • Remove all four combination wheels.
  • Important: Make sure the red clutchplate marks stay lined up with pointer at top of other collar. Reinstall the wheels so that your desired combo lines up with the pointer.
  • Put the collar back on and twist until tight.
  • Record your new combination in a safe place.

Model # 8114:

  • Open the lock & withdraw the cable
  • Turn the collar (circular, ribbed & in front of the combination wheels)- Clockwise until it stops (about halfway around)
  • Set the combo wheels to your desired combination
  • Turn the collar counterclockwise until it stops at its original position
  • Record your new combination in a safe place.

Model # 8119, 8120, 8122 and PL ML283:

  • Open the lock and withdraw the cable
  • Flip the small reset lever by the combination wheels to the "up" position
  • Set the combo wheels to your desired combination, making sure the numbers are lined up with the marks on the case.
  • Flip the reset lever "down" to the starting position.
  • Record your new combination in a safe place

Model # 8280 (Pro Sport):

  • Press the button and remove u-bar from lock body.
  • Open the anti-dust cover and align the opening combination to the guide points.
  • Push the red button towards notch in body. Hold down (there should be a clicking sound).
  • Turn the dials to your desired combination.
  • Pull back reset button to its original position. The lock should be reset to your new combination.
  • Record your new combination in a safe place.
I have a luggage lock from Master Lock that has a resettable combination. I would like to reset the lock to a different combination, But have lost the instructions for doing this. Can you help me?

Models # 620, 630, 646, and 647:

  • Set the lock to your combination and pull out the shackle.
  • Turn the shackle counterclockwise 1/4 turn and press it down.
  • Continue pressing the shackle and turn another 1/4 turn.
  • Set the dials to your new combination.
  • Turn shackle clockwise back to the original position. Lift and return shackle to closed position.
  • Record your new combination in a safe place.

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