Manipulator Manual of AIR20-A Industrial Robot
Common Faults and Treatment
62
Fault
Classification
Possible Causes
Treatment
Vibration
Abnormal noise
Abnormal noise after
the
replacement
of
lubricating grease
Abnormal
noise
occurs
during
the
operation of robot after a
long-term shutdown
Abnormal noise at
low speed
1. Abnormal noise from the
manipulator at low speed
immediately after the
replacement or at the
restart after the long-term
shutdown.
1.Observe the operation of
manipulator for 1-2 days.
Usually the abnormal noise
will disappear.
Shake of
manipulator
After
power-off,
some parts of manipulator
may be shaken manually.
There is a gap
between the connecting
surfaces of manipulator
1. Manipulator bolts are
loose
2. Connecting bolts on the
manipulator are loose due
to the overload, collision,
etc., thus resulting in the
shake
For each Joint, check if the
bolts at the following parts
are loose. If so, tighten it
with a torque wrench
according to a suitable
torque.
1. Fixing bolts of motor
2. Fixing bolts of reducer
shell
3. Fixing bolts of output
shaft of reducer
4. Fixing bolts of pedestal
5. Fixing bolts between
arms
6. Fixing bolts of shell
7. Fixing bolts of end
effector
Turn off the power of
manipulator, and confirm
that the screws are
tightened, and shake the
entire head of manipulator
manually
1. Large backlash is
resulted from the wear or
damage of internal gears
of manipulator due to the
overload, collision, etc.
1. If you need to replace the
internal
gear,
please
consult with us
Motor
overheating
Ambient
temperature
rise
for
installation
of
manipulator, and the
overheating of motor
Motor
overheats
after the cover plate is
mounted on the motor
Motor
overheats
after
the
action
procedures of manipulator
and load conditions are
changed
Ambient Temperature :
1. Ambient temperature
rise or the deterioration of
heat dissipation of motor
after the cover plate is
installed
Load Action:
1. Current value of motor
exceeds its rated value due
to the load and operating
procedures
1. Decrease of ambient
temperature may prevent
the motor from overheating
2.
Improvement
of
ventilation
conditions
around the motor, i.e. the
heat dissipation of motor,
may effectively prevent the
motor from overheating.
3. A radiation shielding
plate if there is a heat
source around the motor
may prevent the motor from
overheating.
4. Slowing down the action
procedures and reducing
the load may decrease the
average current value of
