This short video from the Guardian team shows how to assemble a Guardian Modular Trench Shield box (manhole).
Watch the video or follow the breakdown below.
How to Assemble Guardian Trench Shields Modular Box (Manhole)
People
You’ll need two people to assemble the modular box.
Equipment you will need:
• Guardian Modular Trench Shield Panels
• Corner brackets
• Lifting eye brackets
• Pins
• A 4-leg chain sling
• Machine with Lifting capabilities.
• Safety PPE; HI-vis, Safety Boots, Gloves
Total Assembly Time
Approx 15-20 minutes
Step-by-Step Assembly
1. Position the first panels
2. Install the corner bracket
3. Repeat till bottom 4 panels are connected into a box.
4. Build the second layer.
5. Secure the top
6. Install the lifting brackets
Once the manhole reaches the required panel height, attach the lifting brackets.
7. Lift into place
Use a machine to lift the assembled box into position.
You can complete the final assembly once the box is in place if required. Additional layers can be added to increase depth as needed.
Practical Tips from the Guardian Team
• Always check the holes align before inserting the pins.
• When installing corner brackets, insert the four bottom pins first.
• If you keep the fourth side lower than the other sides initially, you won’t need a ladder for access.
• The smaller the manhole, the greater depth you can dig, as smaller panels have higher KPAs.
Spare pins are available from Guardian if any are lost or damaged.
Need More Information?
For more details on Guardian modular boxes, manholes and trench shoring, and to watch a video answering the most commonly asked questions, click the link below.
While Guardian constantly strives to provide accurate and up-to-date advice regarding our products, it is your responsibility to ensure you meet all relevant legal requirements, rules, and regulations when using them.