1. Product Overview
This manual provides essential information for the proper installation, maintenance, and troubleshooting of your Genuine Toro OEM 115-4669 Drive V-Belt. This V-belt is a critical component of the self-propel system for compatible Toro lawn mowers, ensuring efficient power transfer from the engine to the drive wheels.
The Toro 115-4669 V-belt is designed for durability and performance, manufactured to Toro's original equipment specifications. Using genuine OEM parts helps maintain the optimal performance and longevity of your lawn mower.
Image 1.1: The Toro OEM 115-4669 Drive V-Belt in a coiled state. This belt is essential for the self-propel function of compatible lawn mowers.
1.1 Compatibility
The 115-4669 Drive V-Belt is compatible with various Toro RWD (Rear Wheel Drive) 21-inch Super Recycler and 22-inch Recycler lawn mower models. Please verify your mower's model number against the list below or consult your mower's specific service manual to confirm compatibility.
Known Compatible Models:
- 22in Recycler Lawn Mower
- Super Recycler Lawn Mower (53cm and 55cm variants)
- 60V 21in Super Recycler Lawn Mower
- 21in Super Recycler Lawn Mower
- Specific models include: 20332, 20332C, 20333, 20333C, 20334, 20334C, 20337, 20338, 20352, 20353, 20372, 20373, 20374, 20376, 20381, 20382, 20383, 20384, 20792, 20797, 20955, 20956, 20958, 20960, 20964, 21381, 21382, 21383, 21385, 21386, 21387, 21388, 21388T, 21389, 21563, 21564, 21565, 21566, 21566T, 21568, 21568T, 21690, 21691, 21693, 21762, 21763, 21764, 21766, 21767.
2. Installation (Belt Replacement)
Replacing the drive V-belt requires careful attention to safety and proper procedure. Always refer to your specific lawn mower's owner's manual or service manual for detailed, model-specific instructions and safety warnings. The following are general guidelines.
2.1 Safety Precautions
- Disconnect Spark Plug: Always disconnect the spark plug wire before performing any maintenance to prevent accidental engine starting.
- Allow Engine to Cool: Ensure the engine is cool to the touch before beginning work.
- Wear Protective Gear: Use gloves and eye protection.
- Stabilize Mower: Tilt the mower onto its side with the carburetor and air filter facing upwards to prevent fuel or oil leakage. Ensure it is stable and cannot tip over.
2.2 Tools Required
- Socket wrench set or combination wrenches
- Screwdrivers (Phillips and flathead)
- Pliers (optional, for spring removal)
- Work light (optional)
2.3 General Installation Steps
- Prepare the Mower: Follow all safety precautions. Disconnect the spark plug and tilt the mower.
- Remove Deck Cover/Shields: Locate and remove any covers or shields that obstruct access to the drive belt and pulleys. This may involve removing several bolts or screws.
- Identify Belt Routing: Carefully note or photograph the existing belt's routing around the engine pulley, transmission pulley, and any idler pulleys. This is crucial for correct reassembly.
- Relieve Tension: If present, disengage any tensioning springs or mechanisms that hold the belt taut.
- Remove Old Belt: Carefully remove the old drive belt from all pulleys. Inspect the old belt for wear patterns, which can indicate other issues.
- Inspect Pulleys: Check all pulleys for wear, damage, or excessive buildup of debris. Clean them thoroughly if necessary. Ensure they spin freely.
- Install New Belt: Route the new Toro 115-4669 V-belt according to the diagram or photos you took earlier. Start by placing the belt around the smaller pulleys first, then work towards the larger ones. It can be tricky to get the belt around the transmission pulley cover, requiring careful manipulation.
- Apply Tension: Re-engage any tensioning springs or mechanisms. Ensure the belt is seated correctly in all pulley grooves.
- Reassemble: Reattach all covers and shields securely.
- Test: Reconnect the spark plug wire. Start the mower and engage the self-propel system in a safe, open area to ensure the belt is functioning correctly. Listen for unusual noises or slippage.
Image 2.1: Close-up view of the Toro 115-4669 Drive V-Belt, showing the part number and manufacturing details. Verify this number matches your replacement part.
3. Operating Considerations
Once installed, the drive V-belt works automatically when the self-propel lever is engaged. Proper operation is indicated by smooth, consistent forward movement of the mower when the drive is engaged.
- Smooth Engagement: The self-propel system should engage smoothly without jerking or excessive noise.
- Consistent Speed: The mower should maintain a consistent speed appropriate for the selected setting (if adjustable).
- No Slippage: The drive wheels should not slip or hesitate during operation on normal terrain.
4. Maintenance
Regular inspection and basic maintenance of the drive V-belt can extend its lifespan and ensure reliable self-propel functionality.
4.1 Inspection Schedule
- Before Each Mowing Season: Perform a thorough visual inspection.
- Every 25 Operating Hours or Annually: Inspect more closely for wear.
4.2 What to Look For
- Cracks or Fraying: Any visible cracks, splits, or frayed edges indicate wear and potential failure.
- Glazing or Hardening: The belt surface should not appear shiny or feel excessively hard, which can reduce grip.
- Stretching: A stretched belt may appear loose or cause slippage.
- Missing Chunks: Any missing pieces of the belt material are a clear sign of damage.
- Debris Buildup: Check for grass clippings, dirt, or other debris accumulated on the belt or pulleys, which can cause slippage and premature wear.
4.3 Cleaning
If debris is present, disconnect the spark plug and carefully remove it using a brush or compressed air. Avoid using solvents or harsh chemicals on the belt, as these can degrade the material.
4.4 Replacement
Replace the drive belt immediately if any significant signs of wear or damage are observed. A failing belt can lead to loss of self-propel function and potential damage to other mower components.
Image 4.1: Detailed view of the Aramid material texture of the Toro 115-4669 V-Belt. Regular inspection for wear on this surface is important.
5. Troubleshooting
If your self-propel system is not functioning correctly after belt replacement or during normal operation, consider the following common issues:
- Mower Not Self-Propelling:
- Check Belt Routing: Ensure the belt is correctly routed around all pulleys as per the mower's service manual.
- Belt Tension: Verify that any tensioning springs or mechanisms are properly engaged and providing adequate tension.
- Belt Condition: Inspect the belt for severe wear, breakage, or stretching. Replace if necessary.
- Pulleys: Check pulleys for damage, seizing, or excessive debris.
- Drive Cable: Ensure the self-propel drive cable is properly adjusted and not broken.
- Mower Self-Propels Slowly or Slips:
- Belt Wear/Stretch: The belt may be worn, glazed, or stretched, reducing its grip.
- Debris: Grass clippings or dirt on the belt or pulleys can cause slippage.
- Low Tension: Insufficient belt tension.
- Unusual Noises (Squealing, Grinding):
- Belt Misalignment: The belt may not be seated correctly in the pulley grooves.
- Worn Pulleys/Bearings: Pulleys or their bearings may be worn and require replacement.
- Debris: Foreign objects caught in the drive system.
For persistent issues, consult your Toro lawn mower's specific service manual or contact an authorized Toro service center.
6. Specifications
| Feature | Specification |
|---|---|
| Part Number | 115-4669 (also known as 38991) |
| Brand | Toro |
| Belt Style | V Belt |
| Material | Aramid |
| Color | Black |
| Item Weight | Approximately 6.3 ounces |
| Manufacturer | Toro |
7. Warranty and Support
7.1 Warranty Information
Genuine Toro OEM parts are typically covered by Toro's standard warranty for replacement parts. The specific terms and duration of the warranty may vary. Please retain your proof of purchase. For detailed warranty information, refer to the documentation provided with your original Toro lawn mower or visit the official Toro website.
7.2 Customer Support
If you have questions regarding the installation, operation, or maintenance of your Toro 115-4669 Drive V-Belt, or if you require technical assistance, please contact Toro customer support or an authorized Toro service dealer.
- Toro Official Website: www.toro.com
- Find a Dealer: Use the dealer locator tool on the Toro website to find an authorized service center near you.
