TM 10-4320-344-10
Table 3-1. Troubleshooting Table. (Continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7 .
MODEL 609-A ENGINE IS OVERHEATING.
Step 1.
Step 2 .
Step 3.
Check to see if radiator fins are dirty or clogged, damaged, or
leaking.
a.
Stop engine (manual mode - paragraph 2.5.1.1, step k; electric.
manual mode - paragraph 2.5.1.2, step o; electric automatic mode
- paragraph 2.5.1.3,
step e) and clean dirty or clogged fins.
Go to step 2.
b .
Stop engine (manual mode - paragraph 2.5.1.1, step k; electric
manual mode - paragraph 2.5.1.2, step o; electric automatic mode
- paragraph 2.5.1.3, step e) and notify unit maintenance.
Check engine coolant level.
Add engine coolant as required.
Check to see if radiator hoses are damaged or leaking.
Stop engine (manual mode - paragraph 2.5.1.1, step k; electric manual
mode - paragraph 2.5.1.2, step o; electric automatic mode - paragraph
2.5.1.3, step e) and notify unit maintenance.
8.
MODEL 609-C OR MODEL US636HCCD-1 ENGINE IS OVERHEATING.
Step 1.
Step 2.
Check to see if cylinder cooling fins and oil cooler are clogged
(Table 2-11, item 16 or Table 2-12, item 11.
Remove obstructions and scrap cooling fins.
Check to see if cooling air blower belt is loose, damaged, or broken.
Notify unit maintenance.
9.
ENGINE AMMETER (MODELS 609-A OR US636HCCD-1) OR VOLTMETER (MODEL 609-C)
INDICATES HIGH OR LOW RATE OF CHARGE.
Step 1. Check to see if battery is cracked or battery connections are loose or
corroded.
Clean and tighten connections as required.
Step 2. Check fluid level in battery cells.
Notify unit maintenance.
10. EXHAUST SMOKE EXCESSIVELY BLACK.
Check to see if air filter needs to be serviced (Table 2-10, item 21; Table 2-
11, item 17; or Table 2-12, item 10).
Notify unit maintenance.
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