C) Checking The Tooth Backlash - Reely Dragontail Bedienungsanleitung

c) Checking the Tooth Backlash

The distance between the motor pinion (A) and
main gear (B) must be as low as possible with-
out the gears being too tight.
How to achieve this?
Loosen the two attachment screws (C) slightly.
Then push the motor with the motor pinion in the
direction of the main gear with light pressure.
The motor pinion and the main pinion now en-
gage with one another without play. However, this
is not perfect for the service life of the gears!
Put a thin paper strip (no more than 80g paper!)
between the motor pinion and the main pinion.
Then manually turn the main pinion so that the
paper strip is pulled in between the two pinions.
The pressure of the paper pushes back the elec-
tric motor as far as necessary.
Now tighten the motor's attachment screws again in this position.
If you then turn back the main cogwheel so that the paper strip can be removed again, both cogwheels 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 cogwheels (motor pinion and main cogwheel) are too far apart, the main cogwheel 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 cogwheel (teeth are running without play), this will decrease
performance, increase power consumption and lead to premature wear.
Check the tooth backlash after every drive; the motor may have loosened or be displaced by vibrations.
B
A
C
C
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