MTD 731-07131 Side Discharge Chute Instruction Manual

1. Introduction

This manual provides essential information for the proper installation, operation, and maintenance of your MTD 731-07131 Side Discharge Chute. This is an Original Equipment Manufacturer (O.E.M.) authorized replacement part designed to ensure optimal performance and compatibility with your lawn mower.

Product Description: The MTD 731-07131 Side Discharge Chute is a black plastic component designed to direct grass clippings away from the mower deck during operation. It is a crucial safety and functional part for many walk-behind lawn mowers.

Compatibility: This side discharge chute is compatible with various MTD mowers featuring a 21-inch deck, manufactured in 2009 and after. This includes models from popular brands such as Troy-Bilt, Craftsman, Cub Cadet, and Yard Machines. For specific model compatibility, please refer to your mower's owner's manual or consult the MTD Genuine Parts website.

Figure 1: MTD 731-07131 Side Discharge Chute. This image shows the overall shape and design of the black plastic chute.

2. Setup & Installation

The MTD 731-07131 Side Discharge Chute is designed for straightforward installation. No assembly of the chute itself is required. Always ensure the mower engine is off and the spark plug wire is disconnected before attempting any installation or maintenance.

2.1 Safety Precautions

• Always wear appropriate safety gloves and eye protection.
• Ensure the lawn mower engine is completely off and cool.
• Disconnect the spark plug wire to prevent accidental starting.
• Never work under a mower that is not securely supported.

2.2 Installation Steps

1. Locate the Discharge Opening: Identify the side discharge opening on your lawn mower deck. This is typically on the right side when standing behind the mower.
2. Remove Old Chute (if applicable): If a damaged chute is present, carefully remove it. Most chutes are held in place by spring-loaded pins or clips. Gently pull the old chute away from the deck, releasing the pins.
3. Position the New Chute: Align the MTD 731-07131 Side Discharge Chute with the discharge opening on the mower deck. The tabs or hooks on the chute should align with the corresponding slots or pins on the mower deck.
4. Secure the Chute: Press the chute firmly into place. The spring-loaded pins or clips on the mower deck should engage with the chute, holding it securely. Ensure both sides of the chute are properly seated and locked.
5. Verify Secure Attachment: Gently tug on the installed chute to confirm it is firmly attached and does not wobble. A properly installed chute will sit flush against the mower deck.

Figure 2: Underside view of the chute, highlighting the attachment points. These points connect to the mower deck.

Figure 3: Side view of the chute, illustrating its profile and how it extends from the mower deck.

3. Operation

Once installed, the side discharge chute functions automatically to direct grass clippings. Ensure the chute is always properly attached before starting your lawn mower.

3.1 Proper Use

• Direction of Discharge: The chute directs clippings to the side. Be mindful of where the clippings are being discharged to avoid hitting people, pets, or property.
• Mowing Conditions: For best results, avoid mowing wet grass, as it can clog the chute. If mowing tall or dense grass, consider raising the cutting height or making multiple passes.
• Obstructions: Regularly check the chute for any grass buildup or foreign objects that might obstruct the flow of clippings. Clear any blockages only when the engine is off and the spark plug wire is disconnected.

4. Maintenance

Regular maintenance of your side discharge chute will ensure its longevity and proper function.

4.1 Cleaning

• After Each Use: After each mowing session, allow the engine to cool, disconnect the spark plug wire, and then clean any accumulated grass clippings from the inside and outside of the chute. A stiff brush or scraper can be used.
• Stubborn Buildup: For stubborn, dried-on grass, a mild detergent and water can be used. Ensure the chute is completely dry before reattaching it to the mower or storing it.

4.2 Inspection

• Before Each Use: Inspect the chute for any cracks, damage, or signs of wear. Ensure the attachment points are intact and not broken.
• Replacement: If the chute is cracked, broken, or no longer securely attaches to the mower deck, it must be replaced immediately to maintain safety and performance.

5. Troubleshooting

Here are some common issues you might encounter with your side discharge chute and their solutions:

6. Specifications

7. Warranty Information

The MTD 731-07131 Side Discharge Chute comes with a 3-month warranty from the date of purchase. This warranty covers defects in material and workmanship under normal use and service.

What is Covered:

• Manufacturing defects.
• Material flaws that affect the product's intended function.

What is Not Covered:

• Damage resulting from misuse, abuse, neglect, or improper installation.
• Normal wear and tear.
• Damage caused by foreign objects or accidents.
• Unauthorized repairs or modifications.

To make a warranty claim, please retain your proof of purchase and contact MTD Genuine Parts customer support.

8. Customer Support

For further assistance, technical support, or to inquire about replacement parts, please contact MTD Genuine Parts customer service.

• Online Support: Visit the official MTD Genuine Parts website for FAQs, product information, and contact options.
• Contact Information: Refer to your original product packaging or the MTD Genuine Parts website for the most current customer service phone numbers and email addresses.
• Store Locator: Find authorized MTD service centers or retailers for in-person assistance.

When contacting support, please have your product model number (731-07131) and proof of purchase readily available.