HSD ES939 - Page 150

HSD
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2.
Loosen the four M4x12 rounded head screws
from the cover.
3.
Carefully lift the cover and the pneumatic
connections block, and detach the
pressurisation tube. Be especially careful not to
lose the ORs that are beneath the block.
4.
Remove the heat-shrinking sheath from the
electrical connector of the electric fan;
disconnect the electric fan connector.
5.
Loosen the four M4 screws of the fan casing,
then remove it.