User manual

39
Then turn out the 6 holding screws for the sprocket cover.
Remember the corresponding position of the screws.
Takeoffthesprocketcover;thentheentirerearaxleunit
can be taken out
Insert the motor into the motor holding plate and screw it
onslightly(donottightenthescrewsyet,sincethemotor
pinion still needs to be installed and aligned!). The screws
must not be too long, or the motor would be impaired in
its function.
Pushorplugthecoolingelement(A)ontothemotor.
Pushtheenclosedmotorpinion(B)ontotheaxleofthe
electromotor and screw it on slightly with the enclosed
grubscrew(C)(donottightenthegrubscrewyet).
To prevent the motor pinion from coming loose
in operation, always put a drop of threadlocker
varnish onto the grub screw thread.
Insert the rear axle unit as a test. Observe that the motor
pinion is running precisely on the main gear and is not
offset to the side. Now turn the grub screw into the motor
pinion.
Then set the tooth backlash properly. The distance between the motor pinion and main gear must be as low as pos-
siblewithoutthegearsbeingtootight.Howtoachievethis?
Loosen the two attachment screws of the motor a little bit so that it can be moved in the motor holding plate but does
not wobble. Push the motor with the motor pinion in the direction of the main gear with light pressure.
Themotorpinionandthemaingearnowengagewithoutclearance.However,thisisnotperfectfortheservicelife
of the gears!
Putathinpaperstrip(nomorethan80gpaper!)betweenthemotorpinionandthemaingear.Thenmanuallyturn
the main gear so that the paper strip is pulled in between the two gears. The pressure of the paper pushes back the
electric motor by the required measure.
Nowtightenthemotor'sattachmentscrewsagaininthisposition.Ifyouthenturnbackthemaingearsothatthepaper
strip can be removed again, both gears should have the correct distance.
Ideally, the motor pinion should be as close as possible to the main gear without the teeth touching and the
gears therefore being tight.
 Ifthegears(motorpinionandmaingear)aretoofarapart,themaingearteethwillbevirtuallyshavedoffby
the motor pinion after a few seconds - this will void the warranty/guarantee!
 Ifthemotorpinionpressesagainstthemaingear(teetharerunningwithoutplay),thiswilldecreaseperfor-
mance,increasepowerconsumption(themotoralreadyrequireslotsofpowertoturnthemaingear)and
lead to premature wear.
After the motor pinion has been properly installed and the tooth backlash set, the rear axle unit must be screwed on
again.
Ensurethatthecardanicshaftispushedintotherearaxleunit'stappet.
Attach the rear axle unit with the 8 recessed-head screws from the bottom of the chassis. Reinsert the sprocket cover
and reattach it with the screws removed in the beginning.
A
B
C