para 5-17 5-20 para 6-1 para 3-6 para 3-6 para 6-1 figure 5-8 para 3-6 para 5-17 para 6-1 para 3-6 5-21. para 3-19 para 6-1 figure 5-9 para 5-19 para 6-1 fig 3-4 5-22. para 3-19 para 3-6 (2) Clean the area surrounding the replace- ment compressor motor assembly and dry thor- oughly. Caution: Use rubber gloves when handl- ing  or  cleaning  the  unit  or  surrounding  area. (3) Discharge the refrigerant (para 6-1). (4) Refer to figure 5-10 and remove the compressor/motor unit. Use extreme care when sweating the connections loose, c. Installation. (1) Install the compressor/motor unit by reversing the order of removal. (2) Replace the dehydrator (para 5-17). (3) Evacuate and recharge the refrigerant system (para 6-1). (4) Replace the front access panel (para 3-6). 5-23.   Casing   Assembly a. General. The casing assembly protects, and provides air control around the components. Re- moval and installation instructions for the access panels, covers, grilles, and screens have been in- cluded in the applicable component maintenance instructions. Figure 5-11 is provided as a guide should it become necessary to remove panels or insulation not previously covered. b. Removal. Refer to figure 5-11 and remove the casing components as required. Note.  The  majority  of  the  panels  have  been  installed with  rivet  nuts  which  must  be  removed  carefully  so   as  to avoid  damage  to  the  equipment. c. Installation. Install the casing components by reversing the order of removal. 5-24. Suction and Discharge Service Valves a. General. The suction and discharge service valves provide access to the refrigerant system. b. Removal. (1) Remove the condenser fan (para 3-21). (2) Discharge the refrigerant system (para 6-1). (3) Refer to figure 5-12 and remove the ser- vice valves as follows: Both valves must be sweated from the lines. Apply heat carefully to avoid damage to adjacent components. c.  Installation. (1) Install the service valves by reversing the order of removal. (2) Replace the dehydrator (para 5-17). (3) Evacuate and recharge the refrigerant system (para 6-1). 5-15