5-13. GUM CONTENT TEST BATH.
This task consists of:
General Mechanics Tool Kit, (Appendix B, Section III, Item 1)
Teflon Tape, (Appendix E, Section II, Item 157)
General Safety Instructions
Before performing any maintenance actions on electrical equipment, ensure all
electrical power has been turned off. Failure to comply with this warning may
result in serious injury or death.
Remove Gum Content Test Bath. See Figure 5-9.
At Main Power Panel, set circuit breakers A1CB18 and A1CB19 to OFF.
At Power Panel No. 2, set circuit breaker A15CB5 to OFF.
To prevent injury to personnel, be sure gum bath has had time to cool before
performing any maintenance. Steam temperature as high as 600F (279.9C) can
be obtained in this unit.
Open drain valve No. 7 to clear overhead pipes of steam or water.
Tag and disconnect gum bath (1) wiring and conduit (2) from pyrometer fuse box (3).
Disconnect steam line at union (4) located at rear of gum bath (1).
Disconnect drain line at union (5) located at rear of gum bath (1).
Remove cabinet drawers A1 and B1. Remove eight screws (6), lockwashers (7), and washers (8) that secure gum
bath (1) to countertop. Discard lockwashers.
Rotate gum bath (1) to gain access to wiring from pyrometer. Tag and disconnect conduit (9) and wiring from