Pratt & Whitney Rzeszów S.A.
MAINTENANCE MANUAL
PZL-10W ENGINE
70-02-00
1992,08,28
Page 302
Export Control Classification: PL/UE 9E999
(3)
Insert one end of the drain pipe to the oil container (see Airborne Tools) and screw in
second end of the drain pipe in place of the magnetic plug 3).
(4)
Screw out the drain pipe terminal when the oil is drained.
NOTE:
Inspect the rubber sealing ring (5) on the magnetic plug.
Exchange it for the new one if any damage (see 72-02-00, Table, 203, item 31).
(5)
Screw in by hand the magnetic plug and then tighten it by a wrench (see Airborne Tools)
with the torque of 2,0 - 3,9 Nm (0,2 0,4 kGm; 17 -
H
35 Ib-in) holding with second wrench
the plug body.
(6)
Safety wire the plug against screwing out.
C.
Oil drain from the compressor rear bearing area.
(1)
Proceed as at item 2.B.
D.
Oil drain from the compressor turbine bearing area.
(1)
Proceed as at item 2.B.
E.
Oil drain from the power turbine bearing area.
(1)
Proceed as at item 2.B.
F.
Oil drain from the oil cooler.
(1)
Proceed according the Helicopter Maintenance Manual.
3. Oil exchange in the oil system.
A.
Perform the oil exchange as follows:
(1)
Drain the oil from the oil system (see item 2).
(2)
Fill up the oil tank with fresh oil to the level of 8 dm
3
(8 I; 2.1 US gal.)
(3)
Crank (cold) the engine (see 71-02-00, ADJUSTMENT / TEST, item 3.C).
(4)
Start the engine on the ground (see 71-02-00, ADJUSTMENT / TEST, item 3.E).
W ork 4-ä- 5 min. at the ground idle (Gl).
(5)
Shutdown the engine (see 71-02-00, ADJUSTMENT / TEST, item 3.G).
