RP6 ROBOT SYSTEM - APPENDIX
6. The robot generates strange noises when moving!
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Strange noises may have several reasons. You will have to open the robot to
check the gears and motors. The power cables may have moved into the
gearing system?
Just a few rattling noises are quite normal and will
not cause problems!
At high speeds the robot certainly will generate more
noise (but definitely not reach the extreme sound levels of the old prede-
cessor CCRP5-system).
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Maybe one of the adjusting collars (fixing bolts) at the gearwheels, at the
front wheels or anything else has loosened? All wheels must rotate freely
(test this by carefully turning the wheels on the rear!), but the gearwheels
are not allowed to be grinding at each other!
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Disassemble the gearwheels and check them for mechanical damages. Every
tiny little dent/scratch in the teeth can cause periodic “clack clack clack”
noises. You can try to CAREFULLY flatten these out with a small screwdriver.
You can assemble the gears back one by one and rotate them manually to
identify which two gears are causing noises.
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A few drops (even one single drop) of oil applied to both ball bearings of
each motor – at the front-side and at the backside where you may view the
motor shaft – may reduce noise generation (
ATTENTION
: Please strictly
use special oil for ball bearings only!! e.g. Conrad Electronic part number
223441-62 “Team Orion Free Revs Ball Bearing Oil #41701”). During and
after this oiling-procedure for the ball bearings, the motor shafts have to be
rotated in order to adequately spread the oil over the bearing's surfaces.
Hold the motor upright for a few seconds to allow the oil film to flow into the
bearing! After this, any oil residues should be wiped away! Bearings should
have been oiled during manufacturing in the factory already, but the oiling
procedure may need a refresh again at certain intervals!
●
Please do
not
consider to oil the gearwheels this way! This may destroy the
encoder system! Even if the oil is not damaging the electronic components,
the fluid may damage the encoder wheels/stickers, which can soak any flu-
ids very well and this will drastically influence reflectivity (the RP6v2 Stickers
are a bit more robust, but still should not be oiled at all)! Additionally rotat-
ing gearwheels may spread these fluids and lubricants anywhere inside the
robot's interior!
The application of lubrication grease (non-fluids!) is
restricted
to the shafts (!) of both cluster gears only!
Usually grease
on the gears will not improve noise too much...
●
You may apply a small amount of GREASE (not oil!) to the METAL SHAFTS
only. This can reduce rattle noises.
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