VEVOR 2-Sided Trailer Tailgate Lift Assist, 360 lbs Manual

Unlock the full potential of your VEVOR 2-Sided Trailer Tailgate Lift Assist with our comprehensive product manual download. This detailed guide provides step-by-step instructions for setup, troubleshooting, and optimization, ensuring you get the most out of your lift assist system.

Designed to handle up to 360 lbs of load capacity, this lift assist is compatible with open utility trailer tailgates and ramps. It accommodates side rails from 10 to 24 inches in height and tail gates or ramps from 4 to 6 feet in height.

Our user-friendly manual covers every aspect of installation and maintenance, making it a valuable resource for novices and experienced users alike. Download your VEVOR 2-Sided Trailer Tailgate Lift Assist manual today and experience hassle-free tailgate management.

VEVOR 2-Sided Trailer Tailgate Lift Assist Manual

Structure Diagram

Instructions

Thank you very much for choosing this trailer gate lift assist. Please read all of the instructions before using it. The information will help you achieve the best possible results.

VEVOR 2-Sided Trailer Tailgate Lift Assist Models and Parameters

Caution:

Always ensure that the tailgate is secured and locked in an upright position. This product is not intended to replace this critical safety measure.

Please note that this product does not make the tailgate weight-bearing, and the opened tailgate must always rest on firm ground. Never attempt to raise or lower the tailgate while anyone or anything is underneath it.

Additionally, keeping your hands away from all openings, rollers, or cables when using this product is crucial to avoid injury.

Caution

As there are many different sizes, weights, and designs of trailers and tailgates available on the market, some minor adjustments may be necessary to ensure the lift functions correctly. It is crucial to exercise extreme caution during and after the initial installation of the Lift to ensure that it is working correctly.

Before installing, adjusting, or working on the Lift, always secure and lock your tailgate in the upright position. Ensure that your tailgate does not have too much or too little lifting power. Never apply excessive force to raise or lower the tailgate; it should move with minimal effort in both directions.

Always ensure that the rollers turn freely, that the cable is in good condition, and travels in the grooved portion of the rollers as it operates.

Tools Required for Assembly

Components

Important Note:

If the top of your trailer’s side rail is made of round tubing larger than 2 inches in diameter, you will need longer mounting bolts before beginning the installation process.

Alternatively, you can spot-weld the lift on the side rails instead of using mounting bolts. When mounting the Lift, ensure that your housings are straight, level, and flush to ensure proper installation.

Assembly and Use

STEP 1. INSTALLING THE HOUSING A AND THE HOUSING B

• Mark the hole positions of the bolts before installing the bolts.

Place and align housing A & B on the trailer’s side rail.

Notice the direction of the housing in Figure 1-0.

The housings are straight and level on the rail and flush against each other; mark the center of housing B’s mounting holes, as FIG1-1andFIG1-2. In most cases, L1≈1/4 inch as FIG 1-3.

Remove housing B from the side rail without disturbing the placement of housing A. Mark the center of housing A’s mounting holes, as shown in FIG 1-4 and FIG 1-5

• Mark the center of housing A and B’s mounting holes. Drill 1/2-inch holes (which are oversized) down through the side rail where you made your marks.

WARNING！L1≈1/4 inch. If you must install L1 greater than 1/4 inch, you must ensure that cables cannot rub against the end of the siderails when lowering the tailgate to the ground. (0＜L2), Avoid fraying and eventually breaking.

• Install housing A and B

To install, insert the bolts through the mounting holes at the ends of housings A and B, where they come together. Then, place the housings back on the rail while guiding the bolts through the appropriate1/2-inchholes that you have drilled into the side rail.

It is crucial to ensure that the mounting bolts are seated in their square holes and remain seated when connecting and tightening to the siderail. The oversized 1/2-inch holes that you drilled will allow you to do this.

Failure to follow this step may cause the springs to catch on the bolts, preventing the tailgate from going to the ground and damaging the springs.

• Ensure that housings A & B are straight, even, and tight against each other.

STEP 2. INSTALLING THE SPRING/CABLE ASSEMBLIES

1) Slide a spring/cable assembly into housings A & B. The pin A ⑦ passes through the spring’s loop (two springs loop) and housings A, as shown in FIG.2-1 and FIG.2-2. Be sure you run the pin through the looped ends of the inner and outer springs.

1) Install locking ring A ⑧ as shown in FIG. 2-3. #1 As shown in FIG, the locking ring is threaded through the pin hole, and then a gentle rocking motion from Step 1 to Step 2. 2-4.

STEP 3. INSTALLING THE ROLLERS

• Install the roller as shown in FIG. 3-1 and FIG. 3-2

Make sure the roller is spinning freely and smoothly. If not, pleasecheck it carefully if any bends in the tube, burrs, or roughspots.

STEP 4 . Repeat the other above steps and assemble the other side of the Trailer Gate Lift Assist.

STEP 5. ATTACHING THE CABLES TO THE TRAILER’S TAILGATE

IMPORTANT: When the cable was attached to the tailgate, if your tailgate won’t go down, NEVER FORCE！Don’t use violence at the tailgate in either direction!

• First, the tailgate is placed on the ground, and the approximate position of the hook on the tailgate is measured. In most cases, L is between 20 inches and 35 inches.
• Warning! The greater the L, the greater the force. The springs or cables will probably be broken when
  L>37 inches.
• Secure and lock your tailgate in the upright position.

Attach an S-hook to the looped end of each cable. Raise cables just enough to take the slack out of each and (using the S-Hooks) attach each of them to the mesh on both sides of the tailgate, doing so as close to the outer side support angles/tube as possible. As Fig. 5-1. (S-Hooks are for installation purposes only, NOT for permanent use!)

To ensure the proper functioning of the Lift, slowly lower the tailgate halfway down to the ground to check if the springs are moving freely. The tailgate should balance out in this position and move up and down with minimal effort. If not, return the tailgate to the upright position, secure it there, and adjust A or B.

A. If the tailgate does not have enough lifting power, raise the attachment points using the S-Hooks on both sides while keeping both attachment points at the same height. This will help balance the tailgate at almost any position and allow it to move up and down with minimal effort.

B. If the tailgate has too much lifting power, it will not go completely down or stay completely down.

Please refer to TROUBLESHOOTING #2. This involves using a marker or puncher to mark the tailgate side support tube/angle at the same height as the opening in the cable loop, as shown in X of Fig 5-2. 5) Drill a 1/2-inch hole through X.

• As shown in FIG. 5-3, slide the cable thimble onto the gate attachment bolt.

Note: When pulling, the cable is as straight as possible, then tighten the nuts.

• Repeat the two steps above on the other side.

Troubleshooting Instructions

1) If a roller is not spinning freely:

• Check that the housing and cable are straight.
• Check the housing for deformation.

2) If there is too much lifting power on your tailgate.

• Use S-Hooks to test different cable attachment positions and lifting power, and adjust the value of L.
• Reduce the small inner springs in the spring/cable assembly. Using only large outer springs, reattach both cables to the tailgate.

IMPORTANT: Never hook up only small inner springs by themselves.

2-Sided Trailer Tailgate Lift Assist Maintenance

1. Check the cable for breakage, and replace the spring/cable assemblies if breakage.
2. Ensure all bolts and hardware are tight, secure, and sound.
3. Dust out the cable and roller regularly.