Troubleshooting Master Lock Trailer Coupler Lock Key Stuck
Question:
Trailer hitch Master lock won’t open? Key won’t turn all the way to release cylinders on my trailer hitch theft lock where the tow ball goes into
asked by: Sidney C
Expert Reply:
If you're having issues with the key turning all of the way to release your Master Lock coupler lock, like part # ML389DAT, then I recommend using some spray lubricant like the LubriMatic White Lithium Grease # L11354 to help loosen up any dirt that might be in the lock.
Spray it and let it sits for a minute or two and then with the key inserted lightly tap the key with a rubber mallet to make sure it's fully seated. If this doesn't work then you'll either need to drill out the lock or have a local locksmith come out and look at it to release the lock for you.
Products Referenced in This Question
LubriMatic White Lithium Grease - 14 oz. Cartridge
- Lubricants Sealants Adhesives
- Grease
- Multi-Purpose Grease
- Petroleum-Based
- White Lithium Grease
- Lithium 12-Hydroxystearate
- 14 oz
- LubriMatic
more information >
Product Page this Question was Asked From
Master Lock Trailer Coupler Lock - 1-7/8", 2" and 2-5/16" Ball Couplers
- Trailer Tongue Lock
- Surround Lock
- Universal Application Lock
- Keyed Unique
- Fits 1-7/8 Inch Ball
- Fits 2 Inch Ball
- Fits 2-5/16 Inch Ball
- Master Lock
more information >
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on Trailer Tongue Lock
