TM 1-1520-240-10            6-6-25 6-6-62.  Load Dumping From Ramp. CAUTION Damage  to  the  helicopter  or  load  could occur when load dumping from the ramp. Make sure taxi surface is level and free of obstacles. Dumping from the ramp is not a routine operation, but under urgent conditions can be accomplished as follows: a. Helicopter at full stop. b. Remove ramp extensions and rollers if installed. c. Load released, but under control and moved to aft cabin ramp with ramp slightly in up position. WARNING Crew members must remain clear of load. d. Helicopter taxis forward at approximately 5 knots ground speed. When 5 knots is reached, the ramp should be lowered and load pushed out the ramp of the helicop- ter. e. Repeat as required. 6-6-63.  Extended Range Fuel System (ERFS), ERFS II and FARE Kit Weight and Balance Data. Refer to figure 6-1-1, table 6-6-3 and 6-6-2. The operator, upon configuration of ERFS II and FARE kit, must compute various fuel amounts to calculate com- binations of weight and balance matching the mission requirements.  Table  6-6-1  lists  the  weights,  ARM  and moments of ERFS II and FARE kit installations. WARNING Some combinations of ERFS II configura- tion and auxiliary fuel load will cause the helicopter to exceed weight and balance limits. It is the responsibility of the flight crew  to  ensure  the  helicopter  center  of gravity remains within operating limits at take-off and landing. Standard configuration for the ERFS II consists of three tank assemblies, fuel transfer hose assembly, fuel con- trol panel, restraint system, FARE kit, and unusable fuel, with Tank 1 C.G. at 250 inches, Tank 2 C.G. at 330 inch- es, Tank 3 C.G. at 410 inches, and FARE kit C.G. at 464 inches. 6-6-64.  Restraint System Limits. The limitations of the restraint system are 8 G’s forward. 3 G’s aft, 8 G’s vertical, and 8 G’s lateral, measured with each tank one half full of fuel. 6-6-65.  Breaking Loads of Self Sealing Breakaway Valves. The breaking loads of the self sealing breakaway valves utilized  in  the  ERFS  II  fuel  and  vent  assemblies  are: moment bending 750 lbs ("150 lbs) at 7 inches, and tension 4,300 lbs. Table  6-6-1.   Extended Range Fuel System (ERFS) Weight and Balance Data Configuration Weights/Balance Station Moments/1000 Fuel Tank 1 511.3 230.0 117.6 Fuel Tank 2 511.3 290.0 148.3 Fuel Tank 3 511.3 350.0 178.9 Fuel Tank 4 511.3 410.0 209.6 FMCP 48 190 9.1 Vent Lines 15 320 4.8 Pump Discharge Lines 20 290 5.8 Feed Lines/Manifold 70 290 20.3 Forward Area Refueling 800 502 401.6 Equipment (FARE) (2 Pumps, 2 Filters, and 2 Fuel Cans) HICKS 878 379.9 333.5 3/463L Pallets (290 lbs ea.) 870 323 281.0