Introduction
This manual provides essential instructions for the proper installation, maintenance, and safe operation of your Arnold MTD Genuine Parts 46" Deck Belt (Part # 954-05022 / 754-05022). This belt is designed for use with 46" lawn tractors, ensuring optimal performance of your mower's cutting deck.
Safety Information
WARNING:
- Always disconnect the spark plug wire and remove the ignition key (if applicable) before performing any maintenance or installation on your lawn tractor.
- Wear appropriate personal protective equipment, including gloves and eye protection, during installation.
- Ensure the engine is cool before handling any components.
- Refer to your lawn tractor's owner's manual for specific safety procedures and deck removal instructions.
- Keep hands, feet, and clothing away from moving parts.
Setup and Installation
Proper installation of the deck belt is crucial for the efficient operation of your lawn mower's cutting deck. Follow these general steps. Always consult your specific lawn tractor's service manual for detailed, model-specific instructions.
- Prepare the Lawn Tractor:
Park the lawn tractor on a flat, level surface. Engage the parking brake. Disconnect the spark plug wire to prevent accidental starting. Lower the cutting deck to its lowest position.
- Remove the Old Belt:
Carefully inspect how the old belt is routed around the pulleys. It is highly recommended to take a photo or draw a diagram of the belt routing before removal. Release any tensioning mechanisms or idler pulleys to loosen the old belt. Remove the old belt from all pulleys and the deck.

Image: A worn 46-inch deck belt, similar to the one being replaced, showing its typical appearance before removal.
- Install the New Belt:
Route the new Arnold MTD Genuine Parts 46" Deck Belt (Part # 954-05022 / 754-05022) according to the diagram or photo you took. Ensure the belt is seated correctly in all pulley grooves. Pay close attention to any twists or incorrect routing that could cause premature wear or malfunction.

Image: The new Arnold MTD Genuine Parts 46" Deck Belt, still in its packaging, ready for installation.
- Tension the Belt:
Once the belt is correctly routed, re-engage any tensioning mechanisms or idler pulleys. The belt should be taut but not overly tight. Refer to your lawn tractor's manual for specific tensioning procedures.
- Verify Installation:
Manually rotate the mower blades to ensure the belt moves freely and does not rub against any components. Reconnect the spark plug wire. Start the engine briefly and engage the PTO (Power Take-Off) to confirm proper belt operation. Disengage the PTO and shut off the engine.
Operation
The deck belt transmits power from the engine to the mower blades, allowing them to rotate and cut grass. After installation, ensure the belt operates smoothly without slipping or unusual noises. If any issues arise, disengage the PTO immediately and inspect the belt and pulleys.
Maintenance
- Regular Inspection: Periodically inspect the deck belt for signs of wear, cracking, fraying, glazing, or stretching. A worn belt can lead to decreased cutting performance and potential damage to other components.
- Cleaning: Keep the belt and pulleys free from grass clippings, dirt, and debris. Accumulation can cause slippage and premature wear.
- Replacement: Replace the belt if any signs of significant wear or damage are observed. The lifespan of a deck belt varies depending on usage and conditions.

Image: A detailed view of the Arnold MTD Genuine Parts 46" Deck Belt, highlighting its robust construction.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Blades not engaging or slipping | Worn, stretched, or improperly tensioned belt; debris on pulleys. | Inspect and replace belt if worn. Adjust belt tension. Clean pulleys. |
| Unusual noises (squealing, grinding) | Misaligned pulleys; worn belt; damaged bearings in pulleys. | Check belt routing and pulley alignment. Replace worn belt or damaged pulleys/bearings. |
| Belt frequently coming off pulleys | Incorrect belt size; worn belt; misaligned pulleys; damaged belt guides. | Ensure correct belt (Part # 954-05022 / 754-05022) is used. Inspect pulleys and belt guides for damage. |
Specifications
- Part Number: 954-05022 / 754-05022
- Belt Style: Deck Belt
- Compatible Deck Size: 46 inches
- Compatible Devices: Lawn Mower (specifically 46" Lawn Tractors)
- Product Dimensions: 16.5 x 5 x 1.5 inches (packaging)
- Item Weight: 11.2 ounces
- Manufacturer: Arnold
- Model Number: 490-501-M063
Warranty Information
This Arnold MTD Genuine Parts 46" Deck Belt is covered by the manufacturer's standard warranty against defects in materials and workmanship. For specific warranty terms and conditions, please refer to the documentation provided with your original lawn tractor or contact Arnold customer support. Keep your purchase receipt as proof of purchase.
Customer Support
For further assistance, technical support, or to inquire about replacement parts, please visit the official Arnold website or contact their customer service department. When contacting support, please have your product model number (490-501-M063) and part number (954-05022 / 754-05022) available.
You can also visit the Arnold Store on Amazon for more products and information.





