Sawmills eTool Sawmills Menu Home Views Definitions Additional References Credits Logging Handling, Sorting and Storing Receiving and Storing Conveyance to Sawmill Rough Sizing and Debarking Log Breakdown, Related Machinery & Facilities Log Carriages/Carriage Runways Saws Planers Chippers Dry Kilns & Facilities Lumber Storage Lumber Handling Vehicles Lumber Sorting, Stacking, and Piling Plant-Wide Hazards Work Areas Health Hazards Miscellaneous Log and Lumber Processing Traffic Flow/Control Electrical Lockout/Tagout Sawmills » Additional Green Chain Images Manual green chain. Manual green chain. Note: Unguarded mechanical power transmission apparatus. Manual green chain. Sorting and stacking lumber.