LOCK-450 - Uncategorized Steren - Free user manual and instructions
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| Product Type | Combination Padlock |
| Brand | Steren |
| Model | LOCK-450 |
| Body Material | Zinc alloy with anti-rust coating |
| Shackle Material | Hardened steel |
| Shackle Diameter | 6 mm (approx.) |
| Shackle Clearance Height | 20 mm (approx.) |
| Overall Dimensions (W x H x D) | 48 x 42 x 18 mm |
| Weight | 85 g (approx.) |
| Locking Mechanism | 4-digit combination dial |
| Number of Possible Combinations | 10,000 (0000–9999) |
| Power Supply | None – manually operated |
| Keyless Operation | Yes – no key required |
| Weather Resistance | Rust-resistant finish for outdoor use |
| Water Resistance | Splash resistant |
| Security Features | Anti-shim design and hardened steel shackle |
| Maintenance | Clean with a dry cloth; apply light lubricant on moving parts if needed |
| Spare Parts Availability | Non-repairable consumable; replace unit if damaged |
| Included Accessories | Instruction manual (PDF available online) |
Frequently Asked Questions - LOCK-450 Steren
How do I set or reset the combination on my Steren LOCK-450?
To set the combination, open the lock with the factory-set combination (usually 0000), rotate the shackle 90° and press it down. While holding it down, dial your new combination on the four wheels, then release the shackle to lock in the new code. Always test a few times before locking.
What should I do if the dials are stiff or hard to turn?
Apply a small amount of graphite or silicone-based lubricant to the dial mechanisms, then rotate them several times. Avoid oil-based lubricants as they attract dust. If the problem persists, contact Steren support.
Can I use this padlock outdoors in rain?
The LOCK-450 has a rust-resistant coating and is splash resistant, but it is not fully waterproof. For prolonged outdoor exposure, keep the dial area protected and dry it after rain.
I forgot the combination and can't open the lock. What can I do?
Unlike keyed locks, there is no emergency override. If you forgot the code, the only options are to try all 10,000 combinations or cut the shackle with appropriate bolt cutters. Consider re-settable combination locks for future use.
How many sequences are possible with the LOCK-450?
The four rolling wheels allow 10,000 unique combinations (0000–9999). This provides sufficient security for low-to-medium risk applications.
Is the shackle cut-resistant?
The shackle is made of hardened steel, which resists cutting and hacksaw attacks. However, no lock is indestructible; a determined thief with heavy tools might still compromise it.
Can I use this lock for luggage or travel bags?
Yes, the compact size and manual combination mechanism make it suitable for suitcases, backpacks, and lockers. However, TSA-approved locks are recommended for checked luggage to allow inspection without damage.
What maintenance does this padlock need?
Wipe the body with a dry cloth to remove moisture and dirt. Occasionally apply a lubricant to the dial wheels and shackle base to maintain smooth operation. Do not force the dials.
Does the lock come with a warranty?
Steren provides a limited warranty against manufacturing defects. Keep your proof of purchase and contact your local Steren distributor for warranty service.
Is the LOCK-450 suitable for bicycles?
While it can be used for a bike accessory lock, the shackle size is relatively small and not ideal for securing a bicycle to a fixed object. A dedicated cable or U-lock is recommended for bicycle security.
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USER MANUAL LOCK-450 Steren
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Product information
Brand : Steren
Model : LOCK-450
Category : Uncategorized