PERFORMANCE RECOVERY  WASH P&WC PT6A-27 ENGINE

NO	PROCEDURES	Penjelasan
1.	Fill the wash tank 5 litres of cleaning solution. (Mixture of Magnus 25% and water 75% by volume, drinking quality water is permissible).	Ini terpulang pada  jurutera,(rujuk dulu) ade yag nak nisbah 1:3 , 1:5 , dan cuba dapatkan drinking kualiti air(air yg bertapislah).Kalau dah takde pakai je air paip biasa.
2.	Pressurise the wash tank with air or nitrogen (30-50 PSI). Connect the wash wand to pressurised tank.	Sebelum isi angin pastikan cup di tutup rapat dan secure. Isi angin dalam press tank seperti biasa.
3.	Open the cowlings, cut the locking wire and disconnect P3 air pressure line at approximately 5 o’clock position of rear fire seal mounting (view from rear). Install suitable blankings.	Hose ..ni besar dari yg lain.( macam di balut dengan kertas aluminium) lepas tu tutp dengan blank. Kalau takde blank tu , guna plastic.
4.	Position the wash wand on the compressor inlet screen.	Wash wand ni yg bentuk macam penyangkut tu.Letak di air inlet screen dan halakan ke dalam( compressure turbine)
5.	A.Open the ignition C/B in the cockpit.	RUJUK GAMBAR
	B. Push the cabin heating selector to the cold position.
6.	Connect the GPU supply to aircraft and carry out motoring as follow:-
	C. Idle control lever CUT OFF.
	D. Power control lever at DETENT.
	E. Prop. Control lever FEATHER.
	F. Aux fuel pump switch ON
	G. Set the starter switch to ON.	Masa ni stater / propeller mula bergerak/ pusing ..so s/by
	H. When Ng reaches  5% inject cleaning mixture/water for rinse cycle into the engine end keep on the injection.	Masa NG sampai 5% jurtera akan bagi signal/ jerit “GO” ..baru ‘supply’  air.
	- Stop motoring (Max. duration 30 second).	Dalam masa 30 saat jurutera akan ‘stop motoring’ air masih lagi di supply sehingga...
	- Cut the cleaning mixture/water injection as soon as Ng. falls to 5%.	NG drop To 5% ..jurutera kan signal/jerit stop..
	- Switch OFF the Aux. fuel pump.	Di offkan kemudian utk tujuan lubrication pada system.
7.	Remove the wash wand and disconnect it from the wash tank.	Tanggalkan wash wand dari wash tank.
8.	Allow cleaning solution to soak for 15 to 30 minutes.	Biarkan terendam 15-20 minit.
9.	Fill the separate tank with 10 litres of water. ( Drinking quality water is permissible ).	Isi semuala air jika perlu.

10.	Pressurise the tank with air or nitrogen (30 to 50 PSI). Connect the wash wand to pressurised tank.	Tambah pressure dalam tank jika perlu.
11.	Carry out raising with water two times repeating procedure 4 to 6. ( Observe the limitations of starter ).	Bila semual engine ulangan 2 x mengikut step 4-6.
12.	Removed the wash wand and blankings.	Tanggalkan wash wand dan blank
13.	Reconnect the coupling nut of P3 Air tube, torque the nut 90 to 100 lb. In and wire lock.	Pasang semula p3 line dan torque/secure dengan locking wire.
14.	Close the cowlings, reset the ignition C/B and carry out engine ground run at 80% Ng. for one minute or more to completely dry the engine and check for zero leakage at reconnected coupling nut.	Tutup semula cawling Reset cb Dan carried- out EGR at 80%