TM 55-1930-209-14&P-5
(7) Turn off and secure power source to motor controller and perform continuity checks across OL relay
points TA and T1, and points TB and T2. If any of these show an open condition, reset or replace
relay If closed condition exists, go to step (8).
(8) Check MAN/OFF/AUTO switch (S1) continuity as follows:
(a) Place switch in AUTO position and check continuity across points S1 P1 and S1 P2
(b) Place switch In MANUAL position and check continuity across points S1 P3 and S1 P4
(c) If either continuity check Indicates an open circuit, replace switch. If both checks indicate a
closed circuit, go to step (9)
(9) Depress START switch (S2) and check continuity across S2P1 and S2P2 If continuity check
indicates an open circuit, replace switch.
4-7.2.16.3. Replacement
a.
Removal
(1) Make sure pressure set motor controller is electrically dead before starting repair by opening (OFF)
circuit breaker 11 P15 on power panel 1 Redtag circuit breaker with WARNING DO NOT ACTIVATE
REPAIRS BEING MADE
(2) Disconnect and tag wiring with connection information
(3) Remove attaching hardware and remove motor controller
b.
Installation
(1) Install motor controller using attaching hardware
(2) Connect wiring
(3) Close (ON) circuit breaker 11P15 on power panel 1
(4) Check operationally that motor controller operates normally
4-7.2.17. Pump and storage tank selector switch
WARNING
Make sure shore discharge pump motor controller is electrically dead before starting repair or removal of pump
and storage tank selector switch. Redtag switchboard circuit breaker P9 for pump 1 or P15 for pump 2 with:
WARNING DO NOT ACTIVATE REPAIRS BEING MADE.
4-7.2.17.1. Cleaning, inspection, test, and repair
a.
Make sure discharge pump motor controller for pump being repaired Is electrically dead
(1) Open (OFF) switchboard circuit breaker P9 for pump 1 or P15 for pump 2
(2) On discharge pump motor controller, open main switch and redtag controller with. WARNING DO
NOT ACTIVATE REPAIRS BEING MADE
b.
Remove cover from tank selector switch and clean with electrician's brush moistened with an approved
solvent.
c.
Visually Inspect for corrosion, loose connections and indications of burns. Clean corrosion and tighten
loose connections
d.
Check continuity of pump selector switch and tank selector switch and top and bottom switches on
storage tanks In all positions
e.
Replace cover
4-22
