6.3.6 Support Level
In the case of a suspended hoist, the support level is the level of the seat of the top hook or bearing point of the eye from which the hoist is suspended. In the case of a combined hoist, it is the level of the surface upon which the trolley wheels run. In other cases, it is the appropriate level similar to those stated. (See Figure 6.3.6-1 )
Figure 6.3.6-1 Support level for various types of hoists. 1. Support level, 2. Hook-suspended hoist, 3. Eye-suspended hoist, 4. Combined unit, 5. Fixed suspension hoist, 6. Foot-mounted hoist