TROUBLESHOOTING GUIDE E - POWER PLANT - TM-55-1510-218-MTF0104

TM 55-151-218-MTF

TROUBLESHOOTING GUIDE E - POWER

PLANT

CONDITION

PROBABLE CAUSE

E1.

LOW IDLE speed is either high or low.

a. LOW IDLE speed improperly adjusted.

HIGH IDLE speed is either high or low.

E2.

a. HIGH IDLE speed improperly adjusted.

Low or high torque is observed during torque

E3.

check.

a. Barrel adjustable stop is improperly adjust-

ed.

E4.

Reverse torque, N1, and propeller RPM is too

high or low.

a. Reverse adjusting screw is improperly ad-

justed.

Newly rigged engine accelerates faster or slower

E5.

than opposite engine.

a. Engine rigging, components. or engine is

mismatched.

Power levers are not aligned.

E6.

a. Fuel control rod improperly adjusted.

E7.

High engine oil pressure.

a. Defective oil pressure indicating system.

b. Defective pressure relief valve.

E8.

Low engine oil pressure.

a. Insufficient oil.

b. Defective oil pressure indicating system.

c. Dirty oil filter.

d. Leak in oil lines or oil cooler.

e. Defective pressure relief valve.

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