TM 10-4610-240-24
TM 08580C-24/2
TO 40W4-13-22
Table 3-1. Direct Support Troubleshooting - continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
RAW WATER PUMP ASSEMBLY NO. 2 - continued
WARNING
High voltages in this equipment can cause serious injury or death When applying power during a
test, take proper measures to ensure personal safety. Never work on electrical equipment unless
there is another person nearby who is familiar with the operation and hazards of the equipment
and who is competent in administering first aid.
Step 6.
Check for continuity of pump cable assembly.
a.
If open, repair pump cable assembly. Refer to paragraph 3-8.
b.
If pump cable is not defective, repair pump assembly. Refer to paragraph 3-10.
Step 7.
Check for continuity through control circuit as follows, make additional continuity checks as necessary
to isolate fault to a specific component.
NOTE
To measure continuity through K4 it is necessary to close K4 by physically pushing relay handle
up.
L3, CB3-
J8(P)
J9(P) -
J9(E) and (F)
P9(P) -
P8(P)
P9(E) -
P8(E)
P9(F) -
P8(F)
J8(E) -
K4(2)
J8(F) -
K4(3)
K4(2) -
K4(A2) (See note above)
K4(A1)-
K4(A2) (90-120 Ohms)
J/J10O(N)-
K4(A1)
a.
If switch S13 or S4 is open (switches ON), replace it Refer to paragraph 3-45.
b.
If continuity does not exist through CB9 (CB9 ON), replace CB9. Refer to paragraph 3-49.
c.
If continuity does not exist through K3 contacts (2-3) and/or 90 to 120 Ohms is not measured from A2 to A1,
replace motor starter. Refer to paragraph 3-49.
d.
If continuity is not measured through heater assembly, replace defective heater (para 3-49) and reset heater
assembly.
e.
If continuity is absent through wires, tighten loose connections or replace defective wire.
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