TM 10-6640-215-13 4-52. REMOVE/INSTALL JET FUEL THERMAL STABILITY TESTER, JFTOT - continued. REMOVAL Remove JFTOT.  See figure 4-52. a. Unplug JFTOT power cord from wall receptacle. b. Unplug J FTOT from power transformer on left side of unit. c. Loosen hose clamps and disconnect plastic hoses from water inlet and drain on right side of unit. d. Remove screws and hold down clamps securing inlet and drain on right side of unit. e. Disconnect N2 inlet fitting on right side of unit. f. Disconnect hose from metered tube on left side of unit. g. Unlatch the retaining latches on both sides of unit from mounting frame. h. Slide unit out approximately two inches. i. Remove twelve cap nuts, nuts and flat washer that secure JFTOT foundation to countertop. WARNING Two  people  are  required  to  remove  JFTOT  tester  because  of  its  weight.  Failure  to  comply  with  this warning could result in serious injury to personnel or damage to equipment. j. Remove JFTOT with mounting frame from countertop. k. Remove JFTOT from mounting frame. INSTALLATION Install JFTOT Tester.  See figure 4-52. a. Place JFTOT tester into mounting frame. b. Place JFTOT tester with foundation in position on countertop. c. Install twelve screws that secure JFTOT foundation to countertop. d. Slide the unit into its retracted position. e. Latch the retaining latches on both sides of unit to mounting frame. 4-138