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 TM 5-1940-277-20
TM 1940-20/2
Section IV. TROUBLESHOOTING (Continued)
MK1 and MK2 w/SABRE
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7. ENGINE OVERHEATS (ENGINE AUDIBLE ALARM ACTIVATES) - Continued.
Step 9.
Check thermostat (refer to paragraph 3-73).
a. Replace thermostat (refer to paragraph 3-73). Do not operate engine without
thermostat installed.
Step 10.
Check cooling system pump for leaks.
a. Replace defective pump (refer to paragraph 3-70).
Step 11.
Check intercooler for loose connections or leaks.
a. Tighten loose raw water hose damps.
Step 12.
Check water temperature sending unit.
a. Replace defective water temperature sending unit (refer to paragraph 3-101).
Step 13.
Check for clogged remote cooler (MK1).
a. Clean tube stack (refer to paragraph 3-78).
Change 2
2-23
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