TM 10-3930-664-24 2-146.  HEATER HOSE REPLACEMENT (MODEL MHE-271 ONLY) This task covers: Removal, Cleaning, Inspection, and Installation INITIAL SETUP: Tools and Test Equipment: Equipment Condition: General Mechanics Tool Kit (1, App.  E) Towbar lowered (para.  2-126) Drain Pan (10, App.  E) Materials / Parts: Loctite 242 (20, App.  C) A.  REMOVAL WARNING Do   not   remove   heater   hoses   when engine  is  hot.    Hot  water  could  flow out and burn you. 1 PLACE CONTAINER BENEATH HEATER HOSES DURING REMOVAL TO CATCH RESIDUAL FLUIDS. 2 TAG    AND    DISCONNECT    HOSES    (1,    4,    7) FROM HEATER COMPONENTS. a. Tag  inlet  hose  (1).    Disconnect  inlet  hose from heater shutoff valve (2) by loosening clamp (3). b. Remove heater shutoff valve (2) and hose (4) from heater assembly (8) by loosening clamps (5). c. Tag   outlet   hose   (7).      Disconnect   outlet hose from heater assembly (6) by loosening clamp (8). 2-386