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FAQs

 

  • How tight should I run my tarp?

    There are several ways to tell if your tarp is tight enough. You should SEE the crank arm bow slightly, a half inch or so. You should FEEL approximately 40 to 60 pounds of pressure when placing the arm into the retainer. You will HEAR the tarp creak as it tightens under the latchplate. Where the tarp TOUCHES the end caps, there needs to be a good seal and no flapping should occur.

  • How can I prolong the life of my tarp?

    By making sure the proper tension is applied to your tarp and checking that it doesn't flap and flutter in the wind. It is easy to adjust the tarp tension by taking the pin out of the U-joint. There are 21 adjustments to keep your tarp tight, so a slight adjustment to the right or left should do it.

  • Why is the end plug coming out of the roll tube?

    There is a small screw that goes into the side of the roll tube and through the plastic end plug to hold it in place. This is such a tiny screw that sometimes it gets overlooked during the installation process.

  • How do I replace the stretch rope in my front roll return?

    You will be removing the return assembly from inside the roll tube. Remove the old cord, then insert the new cord through the PVC tube and washer; secure it with a knot. Slide the assembly back into the roll tube and secure the end plug with the screw. Slide the protective cover onto the cord and slide the cord through the eyebolt. Let the tarp hang over the edge of the box to remove the slack in the cord. Just as the tube begins to lift, tie a knot in the cord at that point through the eyebolt. For more detailed information, download the installation sheet under the support tab that's entitled Front Roll Return (Bungee Cord).

  • How long does the bungee cord need to be to go into the roll tube?

    It should be 11-1/2 feet for most applications; X-Wide kits are 16-1/2 feet.

  • Why won't my stretch rope return in really cold weather?

    Stretch rope loses its memory in colder climates; once the weather warms up, the stretch cord will regain its elasticity. If you are using the Shur-Lok® system in extreme cold, consider upgrading your Shur-Lok®return to a Shur-Return™ or cable return system. The Shur-Return™ has a lifetime warranty.

  • Why is my tarp wearing out over the bows?

    First, you might not have enough tension applied to the tarp when it is in the latched position. You should SEE the crank arm bow slightly, approximately a half inch. You should FEEL approximately 40 to 60 pounds of pressure when placing the arm into the retainer. You will HEAR the tarp creak as it tightens under the latchplate. Where the tarp TOUCHES the end caps, there needs to be a good seal and no flapping should occur. Secondly, one bow may be setting higher than the others, focusing more of the roll tube weight on that particular bow. The additional weight can cause the tarp to wear more quickly over that bow during the rolling process.

  • Why does my tarp fall in at the end caps?

    Make sure you are using some type of ridge support and that it is installed over the top of the bows. If you have fabric caps, the tarp should go over the first bow, then under the cap and attach to the box. In grain cart and farm truck applications, you need to make sure that the first bow in from the end caps is installed no more than 30 inches for optimum performance. Also, check that the length of your tarp is correct. With aluminum caps, the tarp should be three inches from each end. With galvanized caps, the tarp should be two inches from each end. Finally, with fabric caps, the tarp should have a nine-inch overlap on each end. If you have a Wil-Slip joint, check with customer service for proper dimensions.

  • Why won't my tarp roll evenly?

    When operating a Shur-Lok® without a rear return installed, the operator needs to push the roll tube while cranking the system closed. If you are doing this, then you need to check your front return to make sure that it is set properly. The knot should be secured when there is no slack in the cord and the roll tube starts to lift slightly. If this is a new install, make sure the tarp was installed square with the trailer.

  • Does 22-ounce material roll harder in cold weather?

    Yes, but it only becomes a concern on longer trailers. In this case, Shur-Co® recommends using one of our rear roll return systems or upgrading to an electric system to ease the roll tarp operation.

  • Is it worth upgrading to 22-ounce fabric?

    It is 25% stronger than the 18-ounce fabric and worth the upgrade if you use your tarp system frequently, providing you maintain proper tension on the tarp. Running with a loose tarp is the worst thing you can do and will wear out even the 22-ounce fabric.

  • What type of end cap should I choose?

    Determination is made by box style and application.

    Fabric Caps
    are watertight and commonly used on end dumps, dump bodies and grain carts to absorb a wide range of box flex. These are stronger than steel or aluminum and are economical and easy to repair or replace. For end dumps and dump bodies, the fabric flap can be substituted for a better fit around rear tailgates and hinges. Fabric caps are also used in grain cart applications on oversized boxes and oddly shaped tip-ups.

    Aluminum Caps
    are commonly used on square boxes like gravity boxes, semi grain trailers, farm trucks and some belly dumps. They come with an easy-off option to make tarp removal faster and easier. These won’t rust but don’t respond well to a large degree of box flex.

    Galvanized Steel Caps are commonly used on square boxes in the same applications as the aluminum caps but are more economical. However, these may rust over long periods of time.

    Stainless Steel Caps
    are designed for fertilizer hauling. These provide superior corrosion resistance and lasting performance, as well as a sharper appearance.

  • Do you use the same fabric on fabric caps as on the rest of the tarp?

    All fabric caps are made of Shur-Co’s supreme 22-ounce vinyl fabric for increased durability and better puncture resistance.

  • Does tarp color fade over time?

    All fabric will start to fade eventually, but Shur-Co® uses Shelter-Rite® fabric by Seaman Corporation with built-in UV inhibitors to keep your tarp from fading prematurely.

  • Why is the stitching coming out on the fixed pocket?

    First, make sure that you are running with your tarp in the closed position. Secondly, make sure that your tarp is tight enough. Too much wind flutter will pull on the pocket and stress the threads. Lastly, make sure the fixed tube was mounted low enough on the side of the trailer so the stitching isn't rubbing on the top rail. Also, check that all your bows are mounted at the same height. If the mounting height varies, it can cause excessive pulling on the fixed tube and the threads of the pocket.

  • Will my vinyl tarp be water tight?

    Shur-Co® quality shows in the details. Reinforced stitching adds strength at stress points, reducing the likelihood of tears. Seams are heat welded for a watertight bond between panels; the added thickness creates an improved moisture barrier. Durable webbing straps are added to increase wear and durability in areas where the tarp can see abrasion.

    Please be aware that our standard tarp design has these straps running up and over the top rail edge on a cart, trailer or tender. These straps are securely stitched to the tarp, which pierces the vinyl-coated material and can allow for minimal water seepage. This stitching can also allow some light to penetrate the inside of the box; this is not considered a defect in the tarp.

  • Can SMART2™ receivers control a motor that doesnt have position feedback?

    The short answer is yes. By purchasing a SMART2™ receiver (and remote if wireless operation is desired) you can simply connect power and motor to solenoid within the receiver module. Because the encoder wires inside the receiver module are not connected to anything there will be no position feedback. Contact Shur-Co® directly for further information.

  • How can I prevent rodents from damaging/chewing my tarp?

    There are a few steps which you can take to help prevent damage to your tarp by rodents. 1.) Clean off top rails and top of latch plates. 2) Clean out any tarp material fold areas. 3.) Clean out the area between the top rail and the fixed tube.

    Shur-Co® also offers an Active Decontamination Flap (ADF) that will assist in actively depositing product back into the trailer after loading when closing the tarp.

  • I need a watertight system. What tarp do you recommend?

    Roll tarp systems have been around for many years, and they are the most reliable system for those who haul commodities that need to be kept dry. Shur-Co® perfected the roll tarp when we first introduced The Original Shur-Lok® over 36 years ago. Shur-Co® also carries Premium Belt 'n Ratchet roll tarps. Each system offers many different tarp, bow and customizing options.

  • Will my vinyl tarp be water tight?

    Shur-Co® quality shows in the details. Reinforced stitching adds strength at stress points, reducing the likelihood of tears. Seams are heat welded for a watertight bond between panels; the added thickness creates an improved moisture barrier. Durable webbing straps are added to increase wear and durability in areas where the tarp can see abrasion.

    Please be aware that our standard tarp design has these straps running up and over the top rail edge on a cart, trailer or tender. These straps are securely stitched to the tarp, which pierces the vinyl-coated material and can allow for minimal water seepage. This stitching can also allow some light to penetrate the inside of the box; this is not considered a defect in the tarp.

  • What bow applications are available?

    Shur-Co® offers galvanized steel bows, aluminum bows, heavy-duty bows, the Flexbow® and our exclusive Turning Point™ Bow System (now available in an electric upgrade).

  • Tired of losing money due to downtime, bow replacement and tarp repairs?

    Shur-Co® recognizes how downtime can affect profitability. Several of our systems move the bows completely out of the way for loading or lessen the number of bows needed. We offer superior-quality materials and workmanship on every Shur-Co® side-to-side roll tarp and front-to-back cable system for lasting performance and durability.

Shur-Co® Corporate Help Lines

  • Available Hours: Monday - Friday 8am - 5pm CST
  • Agriculture Inquiries: 1.800.474.8756
  • Construction Inquiries: 1.877.729.2969
  • Flatbed Inquiries: 1.877.474.8726
  • All Other Inquiries: 1.800.437.4172

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Shur-Co® Corporate

  • 2309 Shur-Lok St.
  • Yankton, SD 57078