TM10-3930-660-20 7-3. RADIATOR -  SERVICE/REPLACE/TEST  (Cont‘d) 11. INSTALL RADIATOR COVER. a. Position radiator cover (15) on vehicle  frame. Apply Loctite 242 to bolts (12). b. Secure radiator cover (15) to vehicle frame with eight flatwashers (14), eight new lockwashers (13), and eight bolts  (12). 12. IF REMOVED FROM STORAGE POSITION, INSTALL THE LOAD BACKREST AT REAR OF VEHICLE . 13. CONNECT NEGATIVE BATTERY CABLE, PARA.  8-44. PRESSURE  TESTING COOLING SYSTEM NOTE If cooling system pressure loss is suspected, check radiator cap (4) first. Any foreign material or 1. deposits on cap, cap radiator opening can loss. REMOVE RADIATOR CAP seal, or cause pressure 4). Make sure the radiator is adequately filled. 2. 3. ATTACH COOLING SYSTEM PRESSURIZER TO RADIATOR FILLER NECK. PRESSURIZE COOLING SYSTEM TO BETWEEN EIGHT AND TEN PSI. 7-12