Maximum Power Lever Position Check

TM 55-1510-218-MTF

*C. Maximum Power Lever Position Check. Engines

shall be able to operate within N1 or TGT limits at

maximum power lever position, and be off the torque

limit, at 2000 propeller RPM. Check maximum power

lever position as follows:

NOTE

The only requirement of the maximum pow-

er lever position check is to verify that it is

possible to obtain maximum allowable gas

generator RPM (N1) with the power levers

in the full forward position. If during the

test the TGT temperature limit or N1 limit

is obrained prior to reaching maximum N1,

the check is completed.

Altitude - 25,000 feet pressure altitude.

Propeller levers - Set 2000 RPM.

Ice vanes - Retracted.

Bleed air valve switches - OPEN.

Airspeed - As required.

Power levers - Full forward (do not exceed TGT

and/or N1 limits). For PT6A-41 engine maxi-

mum N1 is 101.5% and maximum TGT is

750C. For PT6A-42 engine maximum N1 is

101.5% and maximum TGT is 800C.

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