Westbrook 4′ x 8′ Galvanized Kit Trailers User Manual
- June 6, 2024
- Westbrook
Table of Contents
Westbrook 4' x 8' Galvanized Kit Trailers User Manual
Congratulations on the purchase of your kit trailer. Thank you for choosing Westbrook.
Safety Information
- It is important to read and understand all the instructions. Failure to follow all assembly instructions may result in serious injury.
- The edges of the trailer frame can be very sharp. To prevent injury wear safety gloves (included) during assembly.
- It is recommended that you use two people to assemble your trailer since you will need to turn the trailer over twice to complete the assembly.
- Modification of the trailer structure can make the trailer unsafe and void your warranty. Any modifications made to the trailer must comply with DOT and NHTSA regulations and must not compromise the gross vehicle weight rating (GVWR) of the trailer.
Important Information
- Included in your kit is the completed New Vehicle Information Sheet (NVIS) or Certificate of Origin and the VIN label. These are important documents and are required to register your trailer.
- If the NVIS form hasn’t been completed, please contact us at 866-857-1445.
- Write the VIN of the trailer and the purchase date in the space below.
- Keep this manual and your receipt in a safe and dry place for future reference.
Serial Number :2SSUB11A___
Purchase Date: ___
Step 1 – Unboxing your trailer & getting ready to assemble the trailer
When unpacking, verify that you have all the parts listed in each section. If
any parts are missing or broken, please contact us at
866-857-1445. When calling about your
trailer, please have the VIN available.
The kit trailer is shipped in 3 boxes or 4 boxes containing the following
parts:
Box # 1 – Axle box includes the axle and the frame channels
Box # 2 – Tire box includes tires, fenders, lights, small parts and hardware
Box # 3 – Slipper Springs
Box # 4 – Ramps
To ease the assembly process, gather the pieces you will need for each step and thoroughly read the assembly instructions for the step prior to assembly for the step. Before you begin, you need to prepare a large area to work.
Tools Required
Step 2 – Hardware
Using the pictogram and the table below, make sure you have all the hardware and fasteners required before you begin assembling the trailer.
If your model includes stake pockets your kit will include the following additional hardware:
Hardware
Step 2 – Frame Assembly
Gather the components below and layout as per corresponding figure of your trailer.
4’x 4′ Kit Trailer Frame – Figure 2A
(If your trailer kit includes stake pockets, please refer to page 18 prior to
assembly) Loosely secure the frame in the numbered sequence below. AT THIS
POINT DO NOT TIGHTEN Secure the top of the channel using item #501033 & 501031
and the bottom using item #501049 & 501031
- Front channel has two vertical slots
- Side channel square holes facing down.
- Back channel 3 holes facing up
- Cross-channels opening facing the rear
4’x 6′ Kit Trailer Frame – – Figure 2B
(If your trailer kit includes stake pockets, please refer to page 18 prior to assembly) Loosely secure the frame in the numbered sequence below. AT THIS POINT DO NOT TIGHTEN Secure the top of the channel using item #501033 & 501031 and the bottom using item #501049 & 501031
- Front channel has two vertical slots
- Side channel square holes facing down.
- Back channel 3 holes facing up
- Cross-channels opening facing the rear
4’x 8′ Kit Trailer Frame – Figure 2C
(If your trailer kit includes stake pockets, please refer to page 18 prior to
assembly) Loosely secure the frame in the numbered sequence below. AT THIS
POINT DO NOT TIGHTEN Secure the top of the channel using item #501033 & 501031
and the bottom using item #501049 & 501031
- Front channel has two vertical slots
- Side channel square holes facing down.
- Back channel 3 holes facing up
- Cross-channels opening facing the rear
Step 3 – Tongue Assembly
- Gather the components below and layout as illustrated in figure 3A
- Slide each tongue channel (Item#500527) into the front frame channel
- Loosely secure the top tongue channel using the hex bolt & nut, and the bottom using the hex flange bolt and nut AT THIS POINT DO NOT TIGHTEN
- Affix the VIN label on the tongue front driver’s side and cover the VIN label with UV protected overlay provided.
Step 3 – Tongue Assembly
-
Feed each wire of the wire harness between the tongue channel and the cut outs on each side of the connection bracket. (FIGURE A)
- Feed the yellow and brown on the driver’s side
- Feed the green and brown wire on the passenger’s side
- Do not pull the white wire through, you will secured it to the coupler channel once it’s assembled.
-
Slide the connection bracket into the tongue channel and secure the top of the channel using the hex flange bolt.
-
At this point, you need to tighten the top of the frame.
CAUTION! FLIPPING THE TRAILER OVER REQUIRES TWO PEOPLE -
Using two people, flip the frame
-
Tighten all the bottom bolts.
-
Secure the bottom of the connection bracket with the cutting screws.
Step 4 Axle Assembly
- Place the slipper spring (500809)on each end of the axle (500047) making sure it is nested in the hole of the axle bracket.
- Put the U-bolts (500814) through the mounting plate and secure using item #501031 for both springs. The axle support plate (500259) has slotted holes and should runs the length of the leaf spring.
Step 5 Mount the Axle
- Place the leaf spring mounting bracket on the square holes of the outer channels. Ensure the bracket holes are facing towards each other. (Figure 5A) and tightly secure using item #501036 & 501031. If there is no cross channel at the fastening location use item#501032 washer to allow correct tightening. Repeat on other side.
- Place the axle into the mounting brackets on the frame of the trailer. It is important that the eye of the slipper spring is facing the front of the trailer and the slipper is facing the rear. (Figure 5B)
- Use the item#501065 & 501066 to secure to the spring to the brackets. Do not over-tighten as there needs to be movement in the spring.
- Using two people, flip the frame
CAUTION! FLIPPING THE TRAILER OVER REQUIRES TWO PEOPLE
Step 6 Fender & Wheels
- Align the fender support plate with the frame and secure with machine screw and nut. If the holes are not perfectly aligned use a punch to align them.
- Align the tire with the studs on the hub and secure to rim using item #501001
- Align the fender to the frame and fender support plate. Ensure the fender support plate is secured to the inside of the fender and secure both using item # 501049 & 501031
- Repeat for other side.
Step 7 Hitch and safety chains
- Insert the tongue support foot into the coupler channel (Figure 6A)
- Loosely secure the chains using the item #501023 & 501031
- Secure the coupler to the channel using item #501021 & 501031making sure it’s tight enough that the tongue foot doesn’t move but the coupler spring releases
- Insert channel into the frame and secure with 501056 hex bolt and nut (Figure 6B)
- Remove the nut from the chain bolt and place the ground white wire on the bolt and refasten
STEP 8 Wiring & Lights
- Feed the wire harness using the pre-cut holes all the way to the back.
- Secure the wire to the frame with the zip ties using the holes provided in the frame.
- Secure each marker light on the front side of frame.
- To make the electrical connection for the marker lights you will need to push the brown wire from the wire harness completely to the back of the wire connector. Once the brown wire is in place, slide in the marker light wire into the connector making sure no wire is coming out of the other side as this could cause a short.
- Squeeze the blade of the connector down with pliers. Make sure you squeeze tight enough to make a connection between both wires. Verify that the blade is all the way in place and close the cover.
- At the back of the trailer cut the wire leaving 6″ then strip 1/4″ section of each wire at the end of the wire harness and twist the cooper wire. Do this for both sides.
- Plug each wire to the corresponding hole in the back of each taillight, and secure the light to the frame.
- Secure the license plate holder on the driver side with taillight.
Wiring Diagram
WIRING COLORS CODE
- Ground=White Wire
- Tail/Running Lights/Marker Lights = Brown
- Left Turn/Brake = Yellow
- Right Turn/Brake = Green
STEP 9 Stake Pocket Installation
- Line the stake pocket to the pre-drilled holes of the frame. There are eight locations.
- Use the 1/4″ bolts and nuts to secure to the frame.
- This should be installed on the channel prior to assembling the frame.
If your kit doesn’t include the stake pocket, you can purchase them at www.westbrooktrailerparts.com
4ft x 4ft Plywood Drill Template
(Plywood not included)
Drill 3/8″ holes in plywood using the dimensions outlined below and use the 3/8″ x 1-1/2″ full thread hex bolts to secure to the frame.
4ft x 6ft Plywood Drill Template
(Plywood not included) Drill 3/8″ holes in plywood using the dimensions
outlined below and use the 3/8″ x 1-1/2″ full thread hex bolts to secure to
the frame.
4ft x 8ft Plywood Drill Template
(Plywood not included ) Drill 3/8″ holes in plywood using the dimensions
outlined below and use the 3/8″ x 1-1/2″ full thread hex bolts to secure to
the frame.
Cut List – Wood Plank
(Wood not included)
4′ x 4′
a. 8pcs 2×4 18″ (12ft -2×4 makes 8pcs)
b. 8pcs – 1×6 – 48″
4′ x 6′
a. 8pcs 2×4 18″ (12ft -2×4 makes 8pcs)
b. 4pcs 1×6 72″
c. 4pcs 1×6 48″
4′ x 8′
a. 8pcs 2×4 18″ (12ft -2×4 makes 8pcs)
b. 4pcs 1×6 96″
c. 4pcs 1×6 48″
Cut List – Plywood
(Wood not included)
4′ x 4′
a. 8pcs 2×4 18″ (12ft -2×4 makes 8pcs)
b. 4pcs 3/4 x 14-3/4″ x 48″
4′ x 6′
a. 8pcs 2×4 18″ (12ft -2×4 makes 8pcs)
b. 2pcs 3/4 x 14-3/4″ x 72″
c. 2pcs 3/4 x 14-1/4″ x 48″
4′ x 8′
a. 8pcs 2×4 18″ (12ft -2×4 makes 8pcs)
b. 2pcs 3/4 x 14-3/4″ x 96″
c. 2pcs 3/4 x 14-1/4″ x 48″
www.westbrooktrailerparts.com
1.866.857.1445
References
- Westbrook Utility Trailers parts, Westbrook trailer parts, Trailer Parts, Utility trailer parts, Home Depot Trailers Parts, Canadian Tire Trailers Parts, Home Hardware Trailers Parts, Stirling Utility trailer accessories, Marathon utility trailer accessori
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