| Technical drawing numbers | |
| S420/1 | Record of amendments |
| S420/2 | Locking sketch |
| S420/3 | Mechanical locking table |
| S420/4 | Detection table |
| S420/5 | Electrical control table |
| S420/6 | Dog chart |
| S420/7 | Lever leads |
| S420/12 | Signal box diagram |
| ‹‹UP Click below to move to adjacent box DOWN›› | ||
| Cheddar | —— This box —— | Wookey |
The diagram below is a low-resolution version to indicate the content: a full-resolution 'pdf' file will be published on CD-ROM (GW Section B, update CD). The update CD contains a redrawn or amended diagram. For availability and ordering information, click on the image below.
This page last updated on 29th October 2010.