10
Step 7:
The 57 Sport Gearbox Assembly is now
complete. The Sport 2 Motor Gearbox and Motors will
be assembled next. The long Socket Head Cap Screws
will remain loose for now.
Step 8:
The two plates for the Sport 2 Motor Gearbox
should already have the bearings inserted but give
them a light press to make sure they are fully seated.
Gearbox Assembly Instructions (QTY 2)
Step 9:
Insert the 2 Motor Sport Pinion Shaft (am-
3988) through the front plate and bearing from the
side opposite where the bearing was pressed. Make
sure to push the shaft all the way in until it rests
against the bearing.
Step 10:
Install the snap ring on the shaft. Be careful
to not permanently deform the snap ring by opening
it too wide. It should snap into the groove on the
output shaft around the full circumference.
Step 11:
Install the 52T Hex Bore gear onto the hex
portion of the output shaft. Make sure the boss of the
gear is away from the snap ring (towards the inside of
the gearbox).
Step 12:
Prepare the gearbox for the motors by
inserting the four (4) M4x25 Socket Head Cap Screws
through both the front plate and back plate and
closing up the gearbox. The Back Plate bearing should
slide onto the protruding portion of the output shaft.
