1. Introducció
This manual provides comprehensive instructions for the installation, operation, and maintenance of your LARSON Storm Door Closer, Model CH1040301. This standard metal piston closer is designed to provide reliable closing action for screen and security doors, ensuring secure latching and controlled door movement. For optimal performance, please read these instructions carefully before beginning installation.
2. Informació de seguretat
- Utilitzeu sempre l'equip de seguretat adequat, inclosa la protecció ocular, durant la instal·lació.
- Ensure the door is securely propped open or held by another person during installation to prevent accidental closure.
- Do not overtighten screws, as this may damage the door or closer components.
- Mantingueu les peces petites fora de l'abast dels nens.
- Advertència de la proposta 65: Aquest producte us pot exposar a productes químics que l'estat de Califòrnia sap que causen càncer i defectes congènits o altres danys reproductius. Per a més informació, visiteu www.P65Warnings.ca.gov.
3. Contingut del paquet
Verifiqueu que tots els components que s'enumeren a continuació siguin presents al vostre paquet:
- 1x LARSON Storm Door Closer (Piston)
- Mounting Brackets (Door and Frame)
- Cargols de muntatge
- Hold-Open Washer
- Instruction Sheet (small, included with hardware)

Image 1: Contents of the LARSON Storm Door Closer package, including the closer piston, mounting brackets, screws, and hold-open washer.
4. Eines necessàries
- Tornavís Phillips
- Drill with appropriate drill bit for pilot holes (recommended to prevent screw stripping)
- Cinta mètrica
- Llapis
5. Instal·lació (Configuració)
Follow these steps for proper installation of your storm door closer. This closer is suitable for wood, metal, or vinyl doors. For heavier full-view storm doors, using two closers (one at the top and one at the bottom) is recommended for balanced operation.
- Determineu la ubicació de muntatge: The closer can be mounted at the top, middle, or bottom of the door, depending on your door's design and existing hardware. Ensure the closer will not interfere with other door components or operation.
- Col·loqueu el suport de la porta: Position the door bracket on the door frame. Mark and pre-drill pilot holes. Secure the door bracket using the provided screws.
- Attach Closer to Door Bracket: Connect the piston end of the closer to the door bracket using the pin.
- Position Frame Bracket: Extend the closer arm to the door frame. Ensure the door can open a full 90 degrees without straining the closer. Mark the position for the frame bracket.
- Attach Frame Bracket: Mark and pre-drill pilot holes for the frame bracket. Secure the frame bracket to the door frame using the provided screws.
- Connect Closer to Frame Bracket: Connect the rod end of the closer to the frame bracket using the pin.
- Prova de funcionament: Slowly open and close the door to ensure smooth operation and proper latching. Adjust as needed.

Imatge 2: Ex.ample of a storm door closer installed, showing the piston and mounting brackets.
6. Funcionament i ajust
Your LARSON Storm Door Closer features adjustable closing speed and a hold-open function.
6.1. Adjusting Closing Speed
The closing speed is controlled by a screw located at the end of the closer piston. Turning this screw adjusts the hydraulic fluid flow, thereby changing the door's closing speed.
- Gireu el cargol en sentit horari a disminuir the closing speed (door closes slower).
- Gireu el cargol en sentit antihorari a augmentar the closing speed (door closes faster).
Adjust gradually and test the door's closing action after each adjustment until the desired speed is achieved. The door should close smoothly and latch securely without slamming.
6.2. Using the Hold-Open Feature
To keep the door open, slide the provided hold-open washer onto the closer rod when the door is open at the desired position. The washer will hold the rod in place, preventing the door from closing. To release, simply push the door slightly open, and the washer will disengage, allowing the door to close.
7. Manteniment
- The closer is factory lubricated for life and requires no additional lubrication.
- Periodically check all mounting screws for tightness. Retighten if necessary to ensure secure attachment.
- Inspect the closer and brackets for any signs of wear or damage. Replace the closer if it becomes bent or damaged.
- Keep the closer clean from dirt and debris to ensure smooth operation.
8. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| La porta es tanca de cop | Closing speed is set too fast. | Turn the adjustment screw clockwise to decrease closing speed. |
| Door does not close completely or latch | Closing speed is set too slow; closer is damaged; mounting screws are loose. | Turn the adjustment screw counter-clockwise to increase closing speed. Check for damage to the closer. Ensure all mounting screws are tight. |
| Door opens too far or strains closer | Improper bracket placement. | Re-evaluate bracket placement to ensure the door opens to a maximum of 90 degrees without over-extending the closer. |
| Screws strip during installation | Pilot holes not drilled or too small; overtightening. | Always pre-drill appropriate pilot holes. Do not overtighten screws. Consider using alternative screws if provided ones are insufficient. |
9. Especificacions
- Número de model: CH1040301
- Marca: Larson
- Material: Metall
- Color: Blanc
- Tipus d'instal·lació: Cargol
- Pes de l'article: Aproximadament 14.3 unces (0.41 quilograms)
- Dimensions del paquet: Aproximadament 16.69 x 4.21 x 1.69 polzades
- Fabricant: Larson Manufacturing Company
10. Garantia i Suport
This product is a genuine Larson replacement part, designed to extend the lifetime of your storm door. For specific warranty information or technical support, please contact Larson Manufacturing Company directly. Keep your purchase receipt for any warranty claims.
You can visit the official Larson weblloc o poseu-vos en contacte amb el seu servei d'atenció al client per obtenir ajuda.





