Identification and Preparation
1. |
Using ACO’s Multipart Cover Rebate Detail provided (example shown in Figure 1), form the access pit and rebate. Ensure that the pit clear opening, beam pockets and pit wall rebates are consistent with the detail. The numbering system on the drawing represents the position and order of installation of the covers. The frames and beams are numbered to help locate the covers, see Figures 2 & 3. |
| 2. |
The frame is delivered in sections. Ensure the end frame (containing the beam locating boxes) components mate with the side frame components. |
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Multipart Cover
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3. |
Set the end frames so that the beam locating boxes are positioned with the corresponding beam pocket/s in the slab. Ensure all the undercut frames are installed at one end and the drawcut frames are installed at the opposite end, see Figure 11. Pack under the corner of the frame joints to raise the level of the frame to the finished floor level. Leave a clearance of 50mm between the concrete beam pocket/s and the beam locating boxes. |
4. |
Place the side frames into position and bolt (finger tight) to the end frames. Ensure that the frames are level and square. Check carefully along the frames and across the diagonals. Surveying equipment is recommended. Ensure the frames and packing pieces do not protrude into the clear opening of the pit. |
Figure 1 - Multipart Cover Rebate Detail |
5. |
Lower the beams into the corresponding boxes. |
6. |
Set up the internal formwork to ensure that the frame will be fully supported after the concrete pour. For Class D and Class G covers block out the holes in the cover with metal sheeting. |
7. |
Place the covers into the frame according to the numbering system (Step 1), ensuring that the top edges of the frame and covers are level with each other. Check the covers for any diagonal rocking movement and adjust the packing under the frame where required. It is critical that the covers are properly seated in the frame and are not obstructed by any internal formwork. |
8. |
Check that the top edges of the covers and frame are level over the entire perimeter of the multipart system. |
9. |
Remove covers to access the (finger tight) bolts and tighten with a wrench. Repeat steps 7–9. |
10. |
Replace all the dust caps in the covers. |
Concrete Pour
Follow concrete pour procedure for single, 2 and 3 part cover systems.
Figure 2 – Frame Sections & Beams are Numbered
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Figure 3 – Multipart System Setup
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Click here for Single, 2 and 3 Part Covers installation guide
Click here for ACO Access
Installation Drawings
Download Rhinocast Installation Guide PDF
To download the Rhinocast Multipart Installation Tutorial, click here.
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