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The Master Lock Keyed Padlock, Model 4140-2341, is designed for indoor and outdoor security applications. It features a durable brass body and a hardened steel shackle, providing resistance against cutting and the elements. The 4-pin tumbler cylinder offers pick resistance, enhancing security for your belongings.
This padlock is ideal for securing cabinets, lockers, gates, fences, and other items requiring reliable protection.

Figura 1: Davant view of the Master Lock Keyed Padlock, Model 4140-2341, showcasing its brass body and steel shackle.
Configuració
Your Master Lock padlock comes ready for immediate use. No assembly is required.
- Inspeccioneu el cadenat: Abans del primer ús, inspeccioneu visualment el cadenat i les claus per detectar qualsevol signe de danys o defectes de fabricació.
- Identificació de la clau: Each padlock is supplied with two keys. These keys are unique to your padlock (unless purchased as a keyed-alike set). Keep one key in a safe, accessible location and the other as a spare.
- Prova inicial: Insert a key into the keyway and turn it to ensure the shackle opens and closes smoothly.
Instruccions de funcionament
Operating your Master Lock keyed padlock is straightforward:
- Per desbloquejar:
- Insert the key fully into the keyway at the bottom of the padlock.
- Turn the key clockwise (typically a quarter turn) until the shackle springs open.
- Remove the key. The shackle will remain open.
- Tancar:
- Close the shackle by pushing it down firmly into the padlock body until it clicks into place.
- Assegureu-vos que el grillet estigui completament col·locat i que no es pugui obrir sense la clau.
- The padlock is now locked. The key is not required to lock the padlock.

Figura 2: Example applications for the Master Lock padlock, including securing cabinets, sheds, and gates.
Manteniment
Proper maintenance will ensure the longevity and smooth operation of your Master Lock padlock:
- Lubricació: Periodically (e.g., every 6-12 months, or more frequently in harsh environments), apply a small amount of graphite lubricant or a silicone-based lubricant into the keyway and around the shackle mechanism. Avoid oil-based lubricants as they can attract dirt.
- Neteja: Wipe the padlock body with a clean, dry cloth to remove dirt and grime. For brass components, a mild brass cleaner can be used sparingly, followed by a thorough wipe.
- Atenció clau: Do not force the key if it feels stiff. Ensure the key is fully inserted and aligned before turning. Avoid using bent or damaged keys.
- Emmagatzematge: When not in use, store the padlock in a dry environment to prevent moisture buildup, especially if used outdoors.
Resolució de problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Key is stiff or difficult to turn. | Dirt or corrosion in the keyway; lack of lubrication; bent key. | Apply graphite or silicone lubricant into the keyway. Ensure the key is straight and undamaged. Do not force the key. |
| Shackle does not open when unlocked. | Mechanism stuck due to dirt or corrosion; shackle bent. | Apply lubricant to the shackle entry points and keyway. Gently tap the padlock body. If shackle is bent, the padlock may need replacement. |
| Shackle does not close or lock properly. | Obstruction in the shackle holes; mechanism issue. | Check for debris in the shackle holes. Apply lubricant. Ensure the shackle is aligned correctly when pushing down. |
Especificacions
Detailed specifications for the Master Lock Keyed Padlock, Model 4140-2341:
- Número de model: 4140-2341
- Material del cos: Llautó massís
- Material de grilló: Acer endurit
- Tipus de bloqueig: Bloqueig de clau
- Tipus de clau: Keyed Alike (if specified, otherwise unique)
- Nombre de pins: 4-pin tumbler cylinder
- Ús recomanat: Interior/Exterior
- Components inclosos: 1 Padlock, 2 Keys

Figura 3: Dimensional diagram of the Master Lock padlock. Overall dimensions (HxWxD) are approximately 6 x 4 x 1.3 cm. Shackle dimensions (AxBxC) are approximately 0.6 x 2.1 x 2 cm.
| Dimensió | Mesurament |
|---|---|
| Padlock Body Height | 2 7/64 in (approx. 5.3 cm) |
| Padlock Body Width | 1 1/2 in (approx. 3.8 cm) |
| Padlock Body Thickness | 1/2 in (approx. 1.3 cm) |
| Diàmetre del grillet | 1/4 in (approx. 0.6 cm) |
| Shackle Height (vertical clearance) | 13/16 in (approx. 2.1 cm) |
| Shackle Width (horizontal clearance) | 13/16 in (approx. 2.1 cm) |
| Pes de l'article | 0.12 Kilograms (approx. 4.2 oz) |
Garantia i Suport
This Master Lock padlock is backed by a Garantia limitada de per vida. This warranty covers defects in material and workmanship for the life of the product under normal use.
For warranty claims, technical support, or further assistance, please contact Master Lock customer service. Refer to the official Master Lock weblloc web per obtenir la informació de contacte més actualitzada.

Figura 4: Master Lock padlock highlighting the hardened shackle and Limited Lifetime Warranty.
Recursos en línia: For additional product information, FAQs, and support, visit the official Master Lock weblloc: www.masterlock.com