TM 10-4610-232-12 (a) Water is flowing through the waste outlet hose. NOTE If  water  is  not  flowing  through  the  hose,  check  that  pressure  control  valve  is  open  and waste hose is not capped. (b) FEED PRESSURE LOW light (2) is off. (c) System pressure control valve (3) is open. (d) Cartridge inlet/outlet pressure gage (4) shows at least 50 psig (345 kPa).  All flags on media level gage should be orange before continuing. NOTE If water level in media filter is low when the  high  pressure  pump  is  started,  the  low  level switch (P37) will not activate the air blanket solenoid (V20). (e) Push HIGH PRESSURE PUMP START (5).  Check that AIR BLANKET V20 blue light (6) is on. CAUTION Stop  pump  and  refer  to  Troubleshooting,  Table  3-1  if  pump  vibrates  excessively,  or  the piping pulses severely. CAUTION DO NOT exceed 900 psig (6210 kPa). (f) When the system pressure gage stops rising, turn system pressure control valve (3) slowly clockwise until  product flowmeter (7) shows mission normal water flow.  Refer to Tables 2-18 and 2-20.  Do not exceed 900 psig.  Refer to troubleshooting, Table 3-1, if mission normal flow cannot be obtained. (g) Check generator as follows:   Adjust throttle to provide 60 Hz.   Adjust voltage to provide 440 VAC. CAUTION Stabilizers must be "'fine tuned"' to eliminate noise and excess vibration which will cause damage to the ROWPU. (h) Check  high  pressure  pump  assembly  for  noise  and  excessive  vibration.    Slowly  decrease  air  pressure  in  the stabilizers until noise and vibration diminish.  If the noise and vibration do not diminish and all the air is out of the stabilizers, then slowly and equally put air into the stabilizers until noise and vibration diminish. CAUTION Operating at push limit may damage RO elements and require more frequent leaning. (4) The average mission normal water flow for the ROWPU is related to the type of water and its temperature as listed by Tables 2-18 and 2-20.  Higher water flows up to listed limits may be set under "push" conditions to meet unusual mission demands.  Do not push beyond the flow listed for 75F (24C) when operating on well water sources Table 2-18.  Average Mission Normal Water Flow for Fresh/Brackish Water Sources Up to 1000 ppm TDS Temp.  F (C) Flow gpm (I/m) Daily Gallons (ltrs) 32 (0) 26 (98) 29,000 (110,000) 35 (2) 27 (102) 31,000 (117,000) 40 (4) 29 (110) 33,000 (125,000) 45 (7) 32 (121) 36,000 (136,000) 50 (10) 34 (129) 39,000 (148,000) 55 (13) 37 (140) 42,000 (159,000) 60 (16) 40 (151) 45,000 (170,000) 65 (18) 44 (167) 50,000 (189,000) 70 (21) 48 (182) 54,000 (204,000) 75 (24) 53 (201) 60,000 (227,000) Over 75 (24) 53 (201) 60,000 (227,000) Push Limit 70 (265) 79,000 (299,000) Change 12  2-79