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aci ACCESS series - User Manual

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TONNEAU COVER INSTALLATION
INSTRUCTIONS AND OWNER’S MANUAL
Thank you for purchasing a tonneau cover. ACI
®
manufactured this cover with
pride using superior quality materials and workmanship. With proper care, your
cover will provide years of service and enjoyment.
NOTICE TO INSTALLER: It is recommended instructions are read before
installation, even if familiar with cover. Improvements may be made without
prior notice. Always handle cover and components with care. If you have any
problems or questions, have serial number ready and call customer service.
When done, this owners manual must be given to the consumer.
NOTICE TO CONSUMER: Before using cover, read operating, maintenance,
and safety sections and save owners manual for future reference.
FOR YOUR RECORDS
DATE PURCHASED:
WHERE PURCHASED:
SERIAL NUMBER:
Customer Service Hours:
8:00am-5:00pm CST, Mon. - Fri.
Problems? Questions? Missing or
Damaged Parts? Install Questions?
Call Us First!
1-866-630-8726
STOP
(Located on decal under rear bar by tailgate)
HELP LINE
HELP LINE

Questions and Answers

  • B
    Brian Mcintyre Jr.Aug 13, 2025
    How to adjust manual slide locks on aci ACCESS Automobile Accessories?
    • M
      Mark GillAug 13, 2025
      If the manual slide locks on your aci Automobile Accessories are too loose or too tight, use a 1/8” Allen wrench to adjust the set screw. Tighten or loosen as needed to achieve the desired friction. The lock performs best with some friction.
  • J
    johnsonamyAug 17, 2025
    What to do if the top of the tailgate hits the rear bar when closing aci ACCESS?
    • S
      Sara HodgesAug 17, 2025
      If the top of the tailgate hits the rear bar when you try to close it on your aci Automobile Accessories, raise the side rails at the rear of the box until the tailgate closes without pushing the rear bar up. Refer to Step 4B for guidance.
  • W
    Whitney MartinezAug 21, 2025
    What to do if aci Automobile Accessories cover is too loose?
    • L
      Lisa BartonAug 21, 2025
      If the cover of your aci Automobile Accessories is too loose, turn both tension adjusters counter-clockwise to move the front bar forward. Refer to Step 4C, and check the arrows next to the adjuster for visual guidance.
  • S
    Sue PayneAug 25, 2025
    What to do if aci Automobile Accessories cover is too tight?
    • D
      Darius WilkersonAug 25, 2025
      If the cover of your aci Automobile Accessories is too tight, turn both tension adjusters clockwise to move the front bar back. Refer to Step 4C, and check the arrows next to the adjuster for visual guidance.
  • F
    Franklin GarrisonAug 28, 2025
    What to do if aci ACCESS Automobile Accessories cover is too wide?
    • H
      Herbert QuinnAug 28, 2025
      If the cover of your aci Automobile Accessories is too wide, check if the rail is level. If the rail tilts down, loosen the clamp, raise it, engage the teeth, and then tighten it. Refer to Step 1D for detailed instructions.
  • R
    Robert JamesSep 1, 2025
    What to do if aci ACCESS cover is too narrow?
    • N
      Nicole TrevinoSep 1, 2025
      If the cover of your aci Automobile Accessories is too narrow, check if the rail is level. If the rail tilts up, loosen the clamp, lower it, engage the teeth, and then tighten it. Refer to Step 1D for detailed instructions.
  • M
    Maxwell Russell DDSSep 5, 2025
    Why is there a gap between the roll-up bar and tailgate on my aci Automobile Accessories?
    • M
      moralesdavidSep 5, 2025
      A gap between the roll-up bar and tailgate on your aci Automobile Accessories indicates that the rails are set too high. Refer to Step 4B for instructions on how to adjust them.
  • M
    michaelfrenchSep 8, 2025
    What to do if aci ACCESS Automobile Accessories cover is lopsided?
    • M
      mercadoamySep 8, 2025
      If the cover of your aci Automobile Accessories is lopsided, check the front bar to ensure it is centered from side to side. Refer to Step 3D for guidance.

Summary

Tonneau Cover Manual Introduction

Installation Instructions

Preparation

Steps for unpacking, cleaning, and identifying components and tools needed for installation.

Parts Diagram

A visual guide identifying all parts of the tonneau cover assembly for reference.

Installing Cover Side Rails

Positioning and Aligning Side Rails

How to place the side rail against the truck box edge and ensure it's flush and level.

Clamp Installation and Adjustment

Attaching clamps to the rail and adjusting them to keep the rail level and secure.

Final Rail Installation Steps

Completing side rail installation by adding remaining clamps and ensuring proper torque.

Assembling Tension Adjusters to Cover

Attaching Tension Adjusters

Connecting the left and right tension adjusters to the front bar of the cover assembly.

Mounting Cover to Side Rails

Setting and Sliding Cover Bar

Placing the rolled cover on rails and sliding the front bar to align with holes.

Securing Front Bar to Rails

Fastening the front bar to the side rails using bolts and nuts on the tension adjusters.

Centering Front Bar

Ensuring the front bar is centered between both side rails for proper fit.

Initial Operation and Adjustments

Unrolling and Closing Cover

Unrolling the cover and closing the rear bar into the side rail strikes.

Tailgate Adjustment

Adjusting rail height to ensure snug fit with the tailgate without interference.

Checking and Adjusting Cover Tension

Testing cover tension and adjusting it using tension adjusters for a drum-tight fit.

Sealing Cover Sides

Securing the cover by engaging the hook and loop system on both sides.

Operating Instructions

Closing the Tonneau Cover

Steps for releasing straps, rolling the cover, and securing the rear bar with latches.

Opening the Tonneau Cover

Procedure for opening the tailgate, releasing the trigger latch, and lifting the rear bar.

Optional Slide Lock Use

Instructions for using the optional manual slide lock for added security.

Troubleshooting

Cover Tension Issues

Solutions for cover being too loose or too tight via tension adjuster adjustments.

Gap and Tailgate Fit

Addressing gaps between the cover and tailgate, or tailgate hitting the rear bar.

Cover Width and Alignment

Correcting issues with cover being too narrow/wide or lopsided by checking rail and bar centering.

Slide Lock Adjustment

Adjusting the set screw on manual slide locks for optimal friction and security.

Tips for a Longer Lasting Cover

Inspection and Maintenance

Safety Information

Manufacturers Limited Warranty

aci ACCESS series Specifications

General IconGeneral
Brandaci
ModelACCESS series
CategoryAutomobile Accessories
LanguageEnglish