TM 55-1510-221-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
ENGINE RUNUP (CONT)
d.
Power levers Set 1800 RPM
e.
Torquemeter Read and record torque
f.
Power lever IDLE
g.
Torque reading taken In step d must
equal the corrected torque read from
figure 2 in step b within 2%.
h.
Repeat procedure for other engine The
difference in torque readings between
left and right engines should not be
greater than 1%.
*19. Ice vanes Check as follows:
a.
Power levers Set 1800 RPM.
b.
Ice vane switches EXTEND. Verify
torque drop, and illumination of VANE
EXT lights.
c.
Ice vane switches RETRACT. Verify
return to original torque, and VANE
EXT lights extinguished.
20. Power levers IDLE
BEFORE TAKEOFF
1.
Autofeather switch ARM.
2.
Bleed air valve switches OPEN.
3.
Ice and rain switches As required
4.
Fuel control panel Check fuel quantity and
switch positions
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