3.4.2The filter servicing the hoist can also service other hoists and air consuming equipment. In this case, the air filter must be in sized for the total air consumption of the equipment it is servicing.
3.5 Air Dryer - 
CAUTION To prevent corrosion and hoist malfunction, employ an air dryer in the air supply system to ensure that dry air is supplied to the hoist. If there is moisture in the air supplied to the hoist, this moisture will cause corrosion on internal hoist components during periods when the hoist is idle leading to hoist malfunction.
3.6Piping, Hoses And Fittings
System Configuration - The system should be configured as shown in Figure
Arrange for a drain in the air supply piping at the lowest point in the piping, and
Periodically drain the system to remove moisture/water from the system and to prevent corrosion. Filter, regulator (if equipped), and lubricator must be arranged in the order shown in Figure
Figure 3-1 Diagram of Air Supply Configuration (Typical)
Figure 3-2 Typical Air Supply Filter, Regulator and Lubricator.
13
