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Page Title: 1. ARCTIC KIT WATER PUMP DOES NOT OPERATE (CONT)
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TM 9-2320-364-20-4 2-3052 1.  ARCTIC KIT WATER PUMP DOES NOT OPERATE (CONT). Arctic batteries OK. Blackout stop lights operate   indicating CB20 is OK. Wire 1435 OK. Water pump OK. Wire 1431 from connector   MC119 to CB20 OK. Wire 1431 between relays R32   and arctic heater switch OK. Relay R32 OK. Arctic heater switch OK. Wire 1644 OK. Relay R33 grounded. Relay R33 faulty. Wire 1644 to water pump faulty. KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION Voltage test. STE/ICE-R #89. If 22 to 28 vdc are not present, water pump will not operate. YES NO Replace relay R33 (Para 7-95).   Verify repair, go to Step 11 of this Fault. 10. Are 22 to 28 vdc measured on wire 1644 at relay R33, terminal 87? Repair wire 1644 (see schematic Fig 2-74) or notify DS Maintenance. Verify repair, go to Step 11 of this Fault. WARNING Arctic batteries OK. Blackout stop lights operate   indicating CB20 is OK. Wire 1435 OK. Water pump OK. Wire 1431 from connector   MC119 to CB20 OK. Wire 1431 between relays R32   and arctic heater switch OK. Relay R32 OK. Arctic heater switch OK. Wire 1644 OK. Relay R33 grounded. Relay R33 OK. Wire 1644 to water pump OK. KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION Verify repair. If water pump operates, fault has been corrected. YES NO Fault not corrected. Notify DS Maintenance. 11. Does water pump operate? Fault corrected. Read   WARNING on Page 2-3053

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