Airplane Maintenance Manual
Bristell
B23-915
Chapter 72
supplement
Chapter 72 Page 6
Issue: 09.12.2021
Removal
Tools needed:
wrench size 8, 9, 10, 12, 17, 9/16 in
Allen wrench size 8
screwdriver
cutting pliers, pliers
Cobra pliers (for clamps)
▶
Remove upper cowling
▶
Remove cooling air inlet duct (for intercooler and rear
water cooler)
▶
Disconnect all hoses and electrical connections to the
lower cowling
▶
Disconnect alternate air flap Bowden cable
▶
Remove lower cowling
▶
Disconnect and remove the board battery.
▶
Remove the propeller (see Chapter 61-00
Removal
).
▶
Disconnect all electrical system wires and bondings
between engine, engine mount and firewall.
▶
Close the fuel selector valve (possibly drain fuel from the
fuel installation in front of fuel selector by opening hose
in front of fuel pump assembly).
▶
Drain oil from the engine (see Chapter 12-10-20 of the
main manual) and cooling liquid (see Chapter 12-10-30).
▶
Disconnect hoses of the oil and the cooling system.
▶
Disconnect all air hoses from/to turbocharger and
intercooler
▶
Disconnect water hoses from and to the rear water cooler
(below intercooler)
▶
Remove the oil cooler (see Chapter 79-20-01
Removal
)
and the front radiator Chapter 72-20-11
Removal
).
▶
Remove air filter box (see Chapter 72-20
Removal
).
▶
Remove the exhaust system (see Chapter 78-00
Removal
)).
▶
Blind all the holes on the engine so that no impurity can
get into the engine.
▶
Remove screws attaching the engine mount to the
suspension frame.
▶
Take the engine away from the engine mount by crane or
with help of 2 assistants.
