Chapter 3

SPRING-LOADED CAMMING DEVICES
3-32. Spring-loaded camming devices (SLCDs) (Figure 3-17) provide convenient, reliable placement in
cracks where standard chocks are impractical (parallel or flaring cracks or cracks under roofs). Each SLCD
has three or four cams that rotate around a single or double axis with a rigid or semi-rigid point of
attachment. These are placed quickly and easily, saving time and effort. SLCDs are available in many sizes
to accommodate different size cracks. Each fits a wide range of crack widths due to the rotating cam heads.
The shafts may be rigid metal or semi-rigid cable loops. The flexible cable reduces the risk of stem
breakage over an edge in horizontal placements.

Figure 3-17. Spring-loaded camming devices.

3-16

TC 3-97.61

26 July 2012