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TM 10-6640-215-13 5-15.  REMOVE/INSTALL GUM CONTENT TEST BATH. This task consists of: a.  Removal b.  Installation INITIAL SET-UP: Tools required General Mechanics Tool Kit, (Appendix B, Section III, Item 2) Material Required Teflon Tape, (Appendix E, Section II, Item 157) Personnel Required Two (2) General Safety Instructions WARNING ELECTRICAL SHOCK Before  performing  any  maintenance  actions  on  electrical  equipment,  ensure  all  electrical  power has been turned off.  Death or serious injury may occur from failure to do this. REMOVAL Remove Gum Content Test Bath.  See Figure 5-12. a. At MAIN POWER PANEL, set circuit breakers A1CB18 and AICB19 to OFF. b. At POWER PANEL No.  2, set circuit breaker A15CB5 to OFF. WARNING To  prevent  injury  to  personnel,  be  sure  gum  bath  has  had  time  to  cool  before  performing  any maintenance.  Steam temperature as high as 600°F (279.9°C) can be obtained in this unit. c. Open drain valve to clear overhead pipes of steam or water. d. Tag for reconnection and disconnect gum bath wiring and conduit from pyrometer fuse box. e. Disconnect steam line at union located at rear of gum bath. f. Disconnect drain line at rear of gum bath. g. Remove cabinet drawers Al and B1.  Remove eight screws, lock washers, and lockwashers that secure gum bath to counter top. 5-24


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