Part No. MAN, Rev. EH. Wachs Monitor the door position when tilting the tank. In certain situations the door may contact the ground which could damage the door. 5. Once the tank door is open, turn the Dump Switch to the UP position and hold it until the tank is completely tipped. Make sure no one is near the tank when operating the Dump and Latch Switches. Contact with the tank or door when they are moving could cause serious injury. Figure 5-26. After opening the tank door, turn the Dump Switch to the UP position to completely tip the tank. Figure 5-27. Tank in the fully tipped position. 6. After the tank contents have dumped and the door has stopped swinging, check the inside of the tank for remaining debris. Remove debris with the power washer, or use a shovel to scrape it out if necessary. 7. Use the power washer to clean the rim of the door and the edge of the tank. This will ensure that the tank door will seal properly when it is closed.