INSTALLATION MANUAL
AIRCRAFT ENGINES
page 11 - 4
Initial issue, May 01/99
Effectivity: 447 UL SCDI, 503 UL DCDI, 582 UL DCDI /mod. 99
d00321
11.3.6) Cooling circuit
(for engine installation with spark plugs down)
For this installation position, a venting hose must be con-
nected on top of the waterpump housing (4) leading to the
expansion chamber (10) or to the water chamber of the radia-
tor.
Vent the cooling system well, check after a short operating
period, and refill coolant as required. Only a perfectly vented
cooling system will operate satisfactorily.
▲ WARNING: Do not open cooling system until engine has
cooled to outside air temperature, failure to
respect this information will result in severe
scalds and injuries.
◆ NOTE: illustration shows 582 UL DCDI
02803
fig. 17
fig. 15
02802
02804
fig. 16