TM 9-2320-209-10-1 a. Fuel Tank Trucks (M49A1C and M49A2C ) Controls and Indicators - Cent, M49A2C 1. Meter. Records amount (no. of 7. Gravity delivery line gate valve. Is gallons ) of fuel pumped out. turned left to let fuel flow through 2. Counter control lever. Is moved up gravity delivery line. or down to return numbers on meter 8. Pump delivery line gate valve. Is to zero. turned left to let fuel flow through 3. Pressure gage. Shows condition of pump and dispenser line. filter elements by showing difference 9. Discharge valve control levers. Are in pressure between inlet and outlet pulled back to open discharge valves side of filter. which control flow of fuel from tank 4. Pressure gage handle. Is turned to sections. No. 1 position (right) to take pressure 10. Liquid level gage. Is dipped into readings on inlet side of valve. Is tank sections to measure fuel level. turned to No. 2 position (left) to take readings on outlet side of valve. 11. Remote control handle. Is pulled forward in an emergency to trip 5. Dump valve control (l-inch line). Is operating levers and return them turned left to open automatic dump to closed position. valve, which dumps water separated from fuel by filter segregator unit. 6. Manual drain valve control (1/2 -inch line). Is turned left to open manual drain valve to drain the sump assembly. 4-12