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 TM 55-1905-220-14-11
5-148. MILK DISPENSER - MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
SERVICE (Cont)
(4) M and 1. If no light, overload protector may be tripped off. Wait 10 minutes. If no light, replace
defective overload protector.
c. Remove wires from L and 3 and insert test lamp in series with L1 and 3. Momentarily
touch
L2
to
following points in sequence:
(1)
S - If no light, start winding is open. Replace compressor.
(2)
R - If no light, run winding is open. Replace compressor.
(3)
S1 - If no light, Lead S1-S should be replaced.
(4)
M - If no light, lead M-R should be replaced.
(5)
L - If no light, replace relay.
d. Remove lead M-R and insert test lamp in series with L1 and 3. If light shows when L2 is touched to L,
relay should be replaced. A new relay will eliminate any faulty electrical characteristics, such as improper pick-
up or drop out, which cannot be determined with a test lamp.
e. If all above test prove satisfactory, and there is no capillary restriction, and unit still fails to operate
properly with a good relay, compressor should be replaced.
5-1557
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