Pratt & Whitney Rzeszów S.A.
MAINTENANCE MANUAL
PZL-10W ENGINE
2008.01.20
72-02-00
Page 203b
Export Control Classification: PL/UE 9E999
Put on the large amount of remover on the surface of flange and washer and wait for 10-30 minutes in order to obtain the
soft layer of soil. Next, remove it with use of soft scraper and rags. If it is necessary, repeat these actions.
NOTE:
In the case of use of remover, protect effectively the lacquered surfaces from contact with this preparation, as it
can cause damage of the lacquer.
After cleaning the surfaces of connection, degrease them in accordance with subsection (b).
(3)
Installation of connecting components with use of leak stopper.
(a) Put the leak stopper on the surfaces prepared for sealing (see Table 202 item 45) with use of brush with short hair,
spreading it uniformly on the whole surface. In the case of the connections, where there is a risk of outflow of leak stopper
to the interior of installed unit (internal channels), leave the band of 1-3 mm width from the internal edges that is free of leak
stopper on the adhering surface.
If washer is used in the connection, cover both sides of this washer with leak stopper.
(b) Connect the parts after about 10 minutes. Tight up the connecting screws preliminary with use of half of required torque,
and after 10-20 minutes tight them up with use of torque in accordance with specifications.
Remove the external outflows of leak stopper with use of rag saturated with acetone (see Table 202 item 27).
NOTE: Carry out the test of the connection's tightness (if it is required) not earlier than 30 minutes after end of installation.
