TQ-Systems TQ-HPR50 Service Manual page 15

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➀ Use a caliper gauge to mea-
sure the distance between the
two mounting points in the
frame.
➁ Then set this value on the
motor compensation screws
and thus adjust them to the
required frame width.
Insert the drive unit into the
e-bike frame - matching the
mounting points.
Tighten the motor bolts ➀ and
➁ according to the respec-
tive e-bike manufacturer with
a tightening torque of 20 Nm.
Use new motor bolts (using a
medium-strength threadlocker if
necessary)
Prior to assembly
of the lockring, grease the O ring
➀
and the shaft seal ➁ at the
marked points with ball-bearing
grease.
Place the chain ring (manufac-
turer-dependent) on the output
shaft.
Attach the lockring ➀ with the
help of an mounting tool ➁
and tighten it with a tightening
torque of 50 Nm.
Then remove the mounting tool
➁ .
Mount both cranks, taking into
account the index markings.
UP
Marking
Drive Unit
caliper
The maximum motor
compensation width is
not allowed to exceed or
fall below a maximum of
± 1 mm.
Make sure that no cables
or plugs are crushed or
kinked.
6 Nm
wrench
mm
20 Nm
Ensure that the contact
surfaces are clean.
grease
BB Nm
UN55 wrench
50 Nm
Mounting without a
mounting tool can lead to
damage of the shaft seal
and thus to motor dam-
age, e.g. due to water
ingress!
After initial start-up, fail-
ure to observe the index
marking may result in out-
of-center assistance for
the first 300 m or 984 ft.
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