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USPD Heat Sink Installation
1) Remove the three bolts holding the motor to the gear box
assembly. (you
will need a 5mm allen wrench for this) Carefully pull the motor
straight out
from the gearbox to remove. Some "wiggling" may be required to dis-
engage the
motor shaft from the gear.
NOTE: Take note of the position of
the flat spot on the motor shaft,
and how it
aligns with the flat area in the small gear with which
it engages.
2) Remove the aluminum "gasket" from between the motor and
gearbox.
(see above) Set this "gasket" aside, since will no longer be needed.
3) Apply a thin layer of heat sink paste on BOTH sides of
the EVdeals heat
sink where it will contact the motor and gearbox. Don't apply the
paste on
areas that will not be in direct contact after assembly.
4) Place the heat sink in position between the motor and
gearbox. (in place
of the "gasket" that you removed) Do NOT reinstall the original
metal
"gasket". It is no longer necessary. The fins on your heat sink should be
oriented as shown in the picture below.
(top view)
Gently re-insert the motor shaft into the gear, being careful to align the flat
spot on
the motor shaft and gear) The motor shaft should slide fully into the
center
hole
of the gear. When properly installed, the heat sink will be sand-
wiched between
the motor faceplate and gear housing. NO FORCE should
be applied by tightening
the 3 bolts until the motor, heat sink, and gear
housing are in full contact!
5) Replace and firmly tighten the three bolts holding the motor.