5) Propeller Shaft Removal - Rotax MMH-912 Series Maintenance Manual

3.9.5)
Effectivity 912/914 Series
Edition 1 / Rev. 3
BRP-Powertrain
Maintenance Manual
Propeller shaft removal
See Figs. 72-28 and 72-29.
Place gearbox housing on a suitable surface and press out the propeller
shaft with a hand press. Alternatively, the extractor (1), part no.
877615, can be used to press out the propeller shaft.
Fit the extractor onto the gearbox housing (3) with 6 x M6 screws (2)
and place press-out insert (4), part no. 877605 (for engine configura-
tion 2), or press-out insert (5), part no. 877600, (for configurations 3
and 4) on the end (6) of the propeller shaft (7).
Insert pull-in spindle (8) into the support (9) of the extractor (1) and screw
hex. nut (10) M24x1.5 onto the spindle (8) from the inside. Keep nut in
position with a wrench. By turning the spindle clockwise, the propeller
shaft is pressed out of the gearbox housing.
■ CAUTION : The protection piece (press-out insert (4) - part no. 877605
or press-out insert - part no. 877600) must be used without
fail, as otherwise the machined inner diameter of propeller
shaft would be damaged. If the propeller shaft is removed,
the ball bearing (11) must be replaced!
To remove the ball bearing (11), unscrew the 4 hex. screws (12) M7x16
with the washers (13) from the gearbox housing (3).
■ CAUTION : During this procedure, the shaft seal (14) will be
damaged and must be replaced.
Heat the gearbox housing to 80 to 100
ball bearing (11) out, together with the oil seal (14) and the radius ring
(15), using a suitable punch and from the outside towards the inside.
C (176 to 212 °F) and knock the
°
72-00-00
October 01/2010
page 30