Part No. MAN, Rev. EH. Wachs 4. Open the tank drain valve to allow liquid to drain. Figure 5-19. Open the tank drain valve. If the valve is blocked with solids and the liquid won’t drain, it is easiest to dump the tank to empty it. Stand clear of the tank when dumping liquids the tank contents will splash out when the door is opened. 5. When the liquid has finished draining, check the tank drain valve for obstructions before closing. Figure 5-20. Check the drain valve before closing. 6. Close the tank drain valve. Figure 5-21. Close the tank drain valve. NOTE
Chapter 5, Operating Instructions Vacuum System Operation E.H. Wachs Part No. MAN, Rev. 1-0809 61 If solids remain in the tank, proceed to Step 4 of Dumping Solids (page 63). Otherwise, when all fluids have drained and the valves are closed, return the tank to the operating position. At the control panel, turn the Dump Switch to the DOWN position and hold it until the tank has lowered and moved back to the operating position. Release the Dump Switch. Figure 5-22. Once the fluids have drained and the valves are closed, turn the Dump Switch to the DOWN position until the tank has moved back to its operating position. 8. After dumping or moving the spoils tank, allow sufficient time to recharge the trailer battery before turning off the engine. Refer to Starting and Running the Engine”(page 49) fora more detailed explanation of recharge times.