UNDERCOVER SL24029

UnderCover Select Hard Folding Tonneau Cover

Model: SL24029

Introduction

This manual provides comprehensive instructions for the installation, operation, and maintenance of the UnderCover Select Hard Folding Tonneau Cover, model SL24029. This cover is specifically designed for 2021-2025 Ford F-150 trucks equipped with a 5' 7" (68.4") bed. The UnderCover Select offers enhanced cargo protection, security, and convenient access to your truck bed. Constructed from durable aircraft-grade aluminum with a matte black powder coat finish, it provides both resilience and UV resistance.

Safety Information

  • Always ensure the tonneau cover is properly secured before driving.
  • Do not operate the vehicle with the cover in a partially open or unsecured position.
  • Keep hands and fingers clear of moving parts, hinges, and latches during operation to prevent injury.
  • Do not place heavy objects on the cover that exceed its weight capacity. Refer to specifications for details.
  • Exercise caution when handling the cover during installation or removal due to its size and weight.
  • Regularly inspect the cover and mounting hardware for wear or damage. Replace any damaged components immediately.

Package Contents

Before beginning installation, verify that all components are present:

  • UnderCover Select Hard Folding Tonneau Cover assembly
  • Vehicle-specific mounting rails (left and right)
  • Mounting clamps and associated hardware
  • Drain tubes (if applicable)
  • Installation instructions (this manual)
  • Cargo Retriever (if included with purchase)

If any parts are missing or damaged, contact customer support before proceeding with installation.

Setup and Installation

The UnderCover Select Tonneau Cover features a no-drill, clamp-on installation process. Two people are recommended for easier handling during installation.

  1. Prepare the Truck Bed: Clean the truck bed rails thoroughly to ensure proper adhesion and sealing.
  2. Position Side Rails: Place the left and right mounting rails along the inside of the truck bed rails. Ensure they are flush and properly aligned.
  3. Secure Side Rails: Use the provided clamps to secure the mounting rails to the truck bed. Tighten clamps evenly, but do not overtighten.
  4. Install Drain Tubes (if applicable): If your model includes drain tubes, attach them to the designated ports on the front of the cover rails and route them through the truck bed's drain holes.
  5. Place Tonneau Cover: With assistance, carefully place the folded tonneau cover assembly onto the installed side rails at the front of the truck bed.
  6. Attach Cover to Rails: Secure the front section of the tonneau cover to the mounting rails using the integrated fasteners or clamps as per the specific design. Ensure it is centered and square with the truck bed.
  7. Test Operation: Unfold the cover completely and ensure all latches engage properly. Fold and unfold the cover several times to confirm smooth operation and secure locking.
UnderCover Select Tonneau Cover installed on a truck bed

Image: The UnderCover Select Hard Folding Tonneau Cover fully installed on a truck bed, showcasing its low-profile design.

Operating Instructions

Opening the Cover (Partial Access)

  1. Release Latches: From either side of the truck bed, locate the release cable or handle. Pull the cable to disengage the latches on the first panel.
  2. Fold Panel: Gently lift and fold the first panel towards the cab.
  3. Secure Folded Panels: If folding for ⅔ bed access, continue to fold the second panel. Use the integrated retaining straps to secure the folded sections against the cab, preventing them from unfolding during transit.
Hand pulling release cable to open tonneau cover

Image: A hand demonstrating how to pull the release cable to disengage the tonneau cover latches for opening.

Close-up of Drop-and-Go latches on tonneau cover

Image: A close-up view of the "Drop-and-Go" latches, which simplify securing the cover panels.

Closing the Cover

  1. Unstrap and Unfold: Release the retaining straps and carefully unfold the panels towards the tailgate.
  2. Engage Latches: Press down firmly on each panel until the latches engage securely with the side rails. You should hear an audible click.
  3. Secure Tailgate: Close and lock your truck's tailgate to fully secure the cargo area. The cover utilizes the tailgate lock for security, eliminating external locks on the cover itself.

Removing the Entire Cover (Full Bed Access)

For full bed access, the entire cover can be removed quickly without tools.

  1. Fold Cover: Fold the cover completely towards the cab and secure it with the retaining straps.
  2. Release Knobs: Locate the quick-release knobs at the front of the cover assembly (near the cab). Turn and pull these knobs to disengage the cover from the mounting rails.
  3. Lift and Remove: With assistance, carefully lift the entire cover assembly off the truck bed. Store it in a safe, flat location to prevent damage.
  4. Reinstallation: To reinstall, reverse these steps. Align the cover, engage the quick-release knobs, and then unfold and secure the panels.
Cargo retriever tool in truck bed

Image: The optional cargo retriever tool, useful for accessing items at the front of the truck bed without fully opening the cover.

Maintenance

  • Cleaning: Wash the tonneau cover regularly with mild soap and water. Avoid abrasive cleaners or harsh chemicals that could damage the matte black finish. Rinse thoroughly and dry with a soft cloth.
  • Hinge and Seal Inspection: Periodically inspect the molded rubber hinges and perimeter seals for any signs of wear, cracking, or damage. Ensure seals are free of debris to maintain water resistance.
  • Hardware Check: Every few months, check all mounting clamps and hardware for tightness. Retighten as necessary to ensure the cover remains securely attached.
  • UV Protection: The matte black powder coat offers UV resistance. For prolonged exposure to harsh sunlight, consider using a UV protectant spray specifically designed for automotive finishes to extend the life and appearance of the cover.
Water beading on tonneau cover surface

Image: Water beading on the surface of the tonneau cover, demonstrating its water-resistant properties.

Close-up of matte black powder coat finish on tonneau cover

Image: A detailed view of the protective matte black powder coating, which provides durability and UV resistance.

Troubleshooting

Cover does not latch securely:
  • Check for obstructions along the bed rails or under the cover panels.
  • Ensure the mounting rails are properly aligned and securely clamped. Adjust if necessary.
  • Verify that the latches are free of debris and operating smoothly.
Water leakage into the truck bed:
  • Inspect the perimeter seals for proper contact with the truck bed rails. Ensure no gaps or damage.
  • Check the drain tubes (if installed) for blockages or improper routing.
  • Confirm that the front bulkhead seal is properly seated against the truck bed.
Difficulty folding or unfolding the cover:
  • Ensure the release cables are fully pulled to disengage all latches.
  • Check hinges for debris or damage. Clean as needed.
  • Verify that the cover panels are not binding on the truck bed rails.

Specifications

FeatureDetail
Model NumberSL24029
Compatibility2021-2025 Ford F-150, 5' 7" (68.4") Bed
MaterialAircraft-grade Aluminum
Exterior FinishMatte Black Powder Coat
Lock TypeTailgate (utilizes truck's tailgate lock)
Product Dimensions188.9 x 83.82 x 14.12 cm (74.37 x 33 x 5.56 inches)
Item Weight31.8 kg (70.1 lbs)
UPC840114339241
Kettlebells on tonneau cover demonstrating strength

Image: Kettlebells placed on the tonneau cover, illustrating its robust and solid construction.

Warranty and Support

Warranty Information

The UnderCover Select Hard Folding Tonneau Cover is backed by a limited 3-year warranty. This warranty covers defects in materials and workmanship under normal use. For specific terms, conditions, and limitations of the warranty, please refer to the warranty card included with your product or visit the official UnderCover website.

Customer Support

For technical assistance, troubleshooting, or warranty claims, please contact RealTruck customer support. Have your product model number (SL24029) and purchase date available when contacting support.

Contact Information: (Refer to your purchase documentation or the manufacturer's website for current contact details.)

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