Manual d'instruccions dels passadors de cisallament Arnold OEM-738-04124 MTD

1. Producte acabatview

The Arnold OEM-738-04124 MTD Shear Pins are essential replacement parts designed to protect your snow thrower's auger and gearbox from damage. These pins are engineered to break under excessive stress, such as when the auger encounters a solid object, preventing more costly repairs to the snow thrower's internal components.

This package includes four shear pins and four corresponding clips, ensuring you have spares readily available for maintenance.

Image 1.1: Arnold OEM-738-04124 MTD Shear Pins and Clips. This image displays four individual shear pins, each with a corresponding cotter pin or clip, laid out against a white background. The pins are metallic, typically gold or zinc-plated, and feature a head on one end and a hole for the clip on the other.

2. Compatibilitat

These shear pins are compatible with a wide range of snow thrower models and brands. Verify your equipment's original equipment (O.E.) part number to ensure a correct fit.

2.1. Applicable Models and Series:

• Fits 300/500/600 Series two-stage snow thrower models.
• Compatible with three-stage snow thrower models manufactured in 2005 and after.

2.2. Compatible Brands:

• Troy-Bilt
• MTD
• Yard-Man
• Yard Machines
• Huskee
• Bolens

2.3. Replaces Original Equipment (O.E.) Part Numbers:

• O.E. #738-04124
• O.E. #738-04124A

Image 2.1: MTD Logo. This image displays the MTD logo, featuring the letters 'MTD' in bold black text with a green bar underneath stating 'For A Growing World.' and a green grass graphic to the right.

Image 2.2: Generic Snow Thrower. This image shows a modern, two-stage snow thrower, typically black and grey, with a large auger housing at the front and a discharge chute on top. This represents the type of equipment these shear pins are designed for.

3. Instruccions d'instal·lació

Follow these steps to replace a broken shear pin on your snow thrower. Always ensure the snow thrower is turned off, the engine is cool, and the spark plug wire is disconnected before performing any maintenance.

1. La seguretat primer: Disconnect the spark plug wire to prevent accidental starting of the engine.
2. Locate the Auger Shaft: Identify the auger shaft and the auger housing on your snow thrower. The shear pins typically secure the auger to the auger shaft.
3. Eliminar el pin trencat: If a shear pin is broken, carefully remove any remaining pieces of the old pin and its clip from the auger shaft and auger. You may need pliers or a punch to push out stubborn fragments.
4. Alinear forats: Rotate the auger until the holes in the auger align with the corresponding holes in the inner shaft. This may require slight manual adjustment of the auger.
5. Insert New Shear Pin: Insert a new Arnold OEM-738-04124 shear pin through the aligned holes in the auger and the shaft.
6. Secure with Clip: Once the shear pin is fully inserted, secure it by pushing the provided clip (cotter pin or bow-tie hair pin) through the small hole at the end of the shear pin. Ensure the clip is fully seated to prevent the shear pin from dislodging during operation.
7. Repeat for All Augers: If your snow thrower has multiple augers, repeat the process for each one as necessary.
8. Torneu a connectar la bugia: Once all shear pins are securely installed, reconnect the spark plug wire.

4. Funcionament i Funció

During snow thrower operation, the shear pins act as a sacrificial component. If the auger encounters an obstruction (e.g., a rock, ice chunk, or foreign object) that would otherwise cause excessive torque and damage to the auger gearbox or engine, the shear pin is designed to break. This allows the auger to spin freely on the shaft, preventing further damage to the more expensive components of the snow thrower.

A broken shear pin indicates that the auger has encountered an object and requires inspection and replacement before continuing operation.

5. Manteniment i emmagatzematge

5.1. Inspecció periòdica:

• Before each use of your snow thrower, visually inspect the shear pins to ensure they are intact and properly secured.
• After encountering an obstruction, always check the shear pins for breakage and replace them immediately if necessary.

5.2. Recanvis:

• It is recommended to keep a supply of Arnold OEM-738-04124 shear pins on hand, especially during the snow season, to minimize downtime.

5.3. Emmagatzematge:

• Store shear pins and clips in a dry place to prevent corrosion.

6. Solució De Problemes

6.1. Auger Not Turning:

• Símptoma: The snow thrower engine is running, but the auger is not rotating or is rotating intermittently.
• Possible causa: One or more shear pins have broken.
• Solució: Turn off the snow thrower, disconnect the spark plug wire, and inspect all shear pins. Replace any broken pins following the installation instructions in Section 3. Also, check for any obstructions that may have caused the pin to break.

6.2. Frequent Shear Pin Breakage:

• Símptoma: Shear pins break frequently, even without obvious obstructions.
• Possibles causes:
  • Using incorrect shear pins (e.g., bolts that are too strong).
  • Underlying mechanical issue with the auger or gearbox.
  • Operating the snow thrower in conditions beyond its design capacity (e.g., very heavy, wet snow).
• Solució: Ensure you are using genuine replacement shear pins designed for your model. If the issue persists, consult your snow thrower's owner's manual or a qualified service technician to diagnose potential mechanical problems.

7. Especificacions

8. Garantia i Suport

For specific warranty information regarding Arnold OEM-738-04124 MTD Shear Pins, please refer to the product packaging or the official Arnold Corporation website. For technical support or further assistance, contact Arnold customer service through their official channels.