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Untighten the cross head screws of the cover with a cross head screwdriver size 1 and
remove the cover. Place the hub wheel (hole diameter 4mm) at the motor shaft end.
Untighten the cylinder screws with a slotted screw driver size 1, place the encoder instead of
the plastic sleeves (throw the plastic sleeves away) together with the distance sleeves at the
motor and fix it with the cylinder screws. Position the disc of the hub wheel into the middle of
the slot in the encoder housing and fix the wheel with the setscrew. Solder the wires of the
ribbon cable onto the encoder contact in accordance with fig. 5. Insulate the soldered joints
with shrinking hose. For this place the shrinking hose pieces onto the ribbon cable wires
before soldering.
Attention!
Heat –as far as possible –the shrinking hose only. Avoid temperatures higher than 110°C
at the ribbon cable.
Fig. 5: Wire Arrangement of the Encoder
5. Trouble-Shooting
In any case of trouble which can’t be solved using the recommendations in this user manual, please,
contact directly the manufacturer of the motor:
6. Service and Repair
For maintenance purposes have been provided the changes of the wheel, the brushes, the cover and
the encoder. For other maintenance, services or repair, please, send the motor to the manufacturer
Micro-Motor AG.
6.1. Change of Drive Wheel
Untighten the wheel screws with a torx screwdriver X45. In case of need heat the screws, e.g. with a
soldering lamp up to 80-95°C, for to melt the threadlocking. Remove the old wheel and clean the
contact surfaces and threaded holes. Place the new wheel while aligning the screw holes. Tighten the
screws with torque 17Nm. If you don’t use new PRECOTE-coated screws secure the screws with
“mediumfirm” threadlocking (e.g. Loctite 243, Ergo 4052).
