TM 55-1930-209-14&P-14
2-19.3.5.1
Cleaning and inspection
a.
Make sure anchor winch control panel and anchor winch heaters are electrically dead by opening (OFF)
switchboard circuit breakers P10 or P11 and power panel 3 circuit breaker 11P13. Redtag circuit breaker with:
“WARNING - DO NOT ACTIVATE. REPAIRS BEING MADE."
b.
Wipe clean exterior of motor controller with clean rag. Open motor controller door and vacuum clean or clean
inside with electrician's brush. Avoid using solvents for cleaning inside of motor controller. Solvents leave a
greasy film on components that may reduce electrical continuity.
c.
Check fuse. Replace if necessary.
d.
Visually inspect for indications of burns, corrosion, loose connections, damaged parts, or chipped paint. Clean
corrosion from contacts and terminals, tighten loose connections, and replace damaged parts. Clean electrical
contacts with silver polish, fine sandpaper, or burnishing tool. DO NOT use emery paper or steel wool. Vacuum
to remove residue. Touch up paint according to TB 43-0144. Do not paint threads or labels.
2-19.3.5.2 Test and repair
a.
With switchboard circuit breaker P10 or P11 and power panel 3 circuit breaker 11P13 closed (ON), check electric
winch input line voltage. Check this voltage at main contactor across terminal pairs 1A1 and 1A2, 1A1 and 1A3,
and 1A2 and 1A3 for 440 Vac (see Figure 2-10). If voltage across any terminal pair is not 440 Vac, go to step b.
If voltage across all terminal pairs is 440 Vac, go to step c.
b.
Check circuit breaker P10 or P11 output voltage across all three terminal pairs for 440 Vac. If voltage across
any terminal pair is not 440 Vac, circuit breaker or power source is at fault. If voltage across all terminal pairs is
440 Vac, repair or replace power cable from circuit breaker P10 or P11 to main contactor.
c.
Position ON/OFF switch to ON position and depress reset and forward buttons. Check output voltage of forward
contactor (1M) across terminal pairs 1B1 and 1B2, 1B1 and 1B3, and 1B2 and 1B3 for 440 Vac. If voltage
across any terminal pair is not 440 Vac, go to step d. If voltage across all terminal pairs is 440 Vac, go to step e.
d.
With forward button depressed, check voltage of magnetic coil of contactor (1M) across points L1 and L2 for 440
Vac. If voltage is not 440 Vac, go to step (1). If voltage is 440 Vac, replace magnetic starter.
(1) Open (OFF) switchboard circuit breaker P10 or P11 and make continuity checks as follows.
WARNING
Make sure anchor winch control panel is electrically dead before making
continuity checks. Redtag main switchboard circuit breaker P10 or P11
and power panel 3 circuit breaker 11P13 with: "WARNING DO NOT
ACTIVATE. REPAIRS BEING MADE."
(a) With ON/OFF switch on, check continuity of same, between points N1 and N2.
(b) With FORWARD button depressed, check continuity of same, between points P1 and P2.
(c) Check continuity of STOP switch between points P1 and P2.
(d) Check continuity of REVERSE switch between points S1 and S2.
(e) If all checks indicate continuity, go to step (2). If any check indicates an open circuit, replace faulty switch(es).
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