Quantcast WATER LEVEL REGULATOR - TM-10-6640-239-13_251

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TM 10-6640-239-13 4-118 4-51.    WATER LEVEL REGULATOR. This task consists of: a. Remove b. Install INITIAL SET-UP Tools Required General Mechanics Tool Kit, (Appendix B, Section III, Item 1) Materials/Parts Required Lockwashers, (2) Teflon Tape, (Appendix E, Section II, Item 139) General Safety Instructions WARNING ELECTRICAL SHOCK 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 Remove Water Level Regulator.  See Figure 4-45. a. Position circuit breaker A1CB17 to off. b. In mechanical room, turn off water pump. c. Open cabinets U and V and drain hot water tank (1) by opening valve (2). d. Open hot water faucet and drain water piping. e. Disconnect two unions (3) before and after water level regulator (4). f. At junction box (5) in cabinet U tag and disconnect regulator electrical leads. g. Disconnect conduit (6) at water level regulator (4). h. Attach a line to electrical leads before drawing leads through conduit (6) to facilitate installation. i. Remove two screws (7), washers (8), lockwashers (9), nuts (10) retaining bracket (11), and water level regulator (4) with electrical leads.  Discard lockwashers. j. Remove two threaded pipe adapters (11) from water level regulator (4). k. Remove cap (13) and tag and disconnect wiring. INSTALL Install Water Level Regulator.  See Figure 4-45. a. Apply teflon tape on male fittings.  Be sure to wrap teflon tape in same direction as pipe thread. b. Install wires as tagged to water level regulator (4) and install cap (13).  Discard tags. c. Install two threaded pipe adapters (12) on water level regulator (4). d. Install water level regulator (4) and secure with two screws (7), washers (8), lockwashers (9), nuts (10) and retaining bracket (11).


 


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