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Page Title:
ENGINE OIL HEATER DOES NOT OPERATE (Cont) |
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 TM 9-2320-285-24-1
2-68.
HEATERS TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7.
ENGINE OIL HEATER DOES NOT OPERATE (Cont)
Step 3.
Remove and disassemble engine oil heater (para 2-73d).
Use an ohmmeter to check for continuity of engine oil heater electrical leads.
a.
If continuity is not obtained, replace electrical leads (para 2-73d).
b.
If continuity is obtained, go to step 4 below.
Step 4.
Use an ohmmeter to check for continuity of engine oil heater heating element.
a.
If continuity is not obtained, replace heating element (para 2-73d).
b.
If continuity is obtained, replace engine oil heater (para 2-73d).
8.
ALL WINTERIZATION SYSTEM HEATERS NOT OPERATING
WARNING
Winterization system heaters operate from 110 Vac power source. Disconnect winterization
system cable from receptacle at front bumper of tractor before proceeding. Serious injury or
death can result from contact with energized 110 Vac power lines.
Check if junction box connector insert is cracked or damaged.
Check if cord set wires are securely connected to connector insert.
a.
If cord set wire connections are loose, reconnect (para 2-73f).
b.
If connector insert is cracked or damaged, replace (para 2-73f).
2-769
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