Pratt & Whitney Rzeszów S.A.
MAINTENANCE MANUAL
PZL-10W ENGINE
2004.08.28
80-02-00
Page 5
Export Control Classification: PL/UE 9E999
B.
Engine W et Motoring.
Engine wet motoring is conducted as per engipe start on ground programme (see para. 3.A) with such a
difference that the igniter with spark plugs does not switch on and the ignition of the fuel does not occur.
Motor starter operation cycle lasts 34 seconds and after that time its switch- off takes place.
C.
Engine Cold Motoring.
During engine cold motoring the igniter with the spark plugs do not switch on and the starting fuel valve
does not open.
Motor starter operation cycle lasts 24 seconds and after that time its switch- off takes place.
D.
Engine Start in the Flight.
During engine start in flight the electric system operation is the same as during engine start on ground
(see item 3.A).
E.
Interrupted Starting.
Electric system allows stoppage of any engine start by pressing the "ABORT" button.
At that moment there is a switch off of all accessories involved in any start cycle, except the engine of
relays box, which still operating sets the programing mechanism into its initial position.
In the case of the ALR-1 start-up controller also a start-up cycle of this unit is being broken which
enables immediate initiation of a next start-up cycle.
