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 TM 55-1905-220-14-3
Table 3-51. Anchor Winch Torque Converter Troubleshooting (Cont).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2.
Poor performance and overheating of converter (Cont).
Step 3.
Check for adequate cooling.
A reservoir is used for the direct cooling of the converter fluid, it may become clogged. Wash
and blow out with air. The reservoir or heat exchanger tubes may be clogged inside with dirt,
rust or extraneous matter, and in such cases must be thoroughly cleaned and flushed out.
Step 4.
Check if fluid level is too low.
Check fluid level in reserve tank with engine and converter running. If fluid level is below full
mark on dip stick, add enough to bring level up to this mark.
Refer to MALFUNCTION #1, Loss of fluid from converter.
Step 5.
Operating too long in low efficiency range.
The cooling reservoir has capacity to adequately cool the converter when operating above
70% efficiency, however, when the output shaft speed is pulled down below a predetermined
point or goes above another point and the engine throttle is still wide open, so that the output
horsepower becomes less than 70% of the input horsepower, the cooling capacity of the
reservoir is exceeded.
The converter will always overheat when the engine throttle is wide open and there is no load
on the output shaft to pull the speed down. This is caused by the engine delivering full
horsepower to the converter and no horsepower being transmitted out of the converter,
resulting in full engine horsepower being transformed into heat in the converter.
3-156
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