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6. Trobleshooting
6-5
6.3.2. Reduction Gear
Vibration and abnormal sound will be occurred when a reduction gear is damaged. In
this case, it causes overload and abnormal deviation disturbing normal operation.
Sometimes overheating may result. The robot may also become completely
immovable, or a position offset error may occur.
[Main Axes (S, H, V)]
When turning [ON][OFF] the brake release switch of axis H and axis V, be sure to
take necessary precautions to prevent the ARM from dropping, and then switch the
brake release [ON][OFF]..
Diagnostics
① Check out any vibration, abnormal sound or overheating of the reduction
gear when the robot is in operation.
② Check out any play and abrasion in the reduction gear. And check if any
abnormality is felt by hand when shaking 1st ARM back and forth with the
brake release switch of axis S [ON].
③ Check if peripheral equipment has been contacted with the robot before
the abnormality.
(Damage may occur to the reduction gear due to the contacting impact.)
Resolution
① Replace the reduction gear. A chain block is needed to lift and hang the
robot ARM. Contact our service office for any difficulties.
[Wrist Axes (R2, B, R1)]
When turning [ON][OFF] the brake release switch, be sure to take necessary
precautions to prevent the ARM from dropping, and then switch the brake release
[ON][OFF].
Diagnostics
① Check out any vibration, abnormal sound, or overheating of the reduction
gear when the robot is in operation.
② Check out any play in the reduction gear by shaking the End Effector
(such as spot gun and hand devices, etc.) back and forth.
③ Turn motors off , with the brake release switch [ON], and check that the
axis can be rotated by hand. If not, the reduction gear is in bad condition.
④ Check if peripheral equipment has been contacted with the robot before
the abnormality.
(Damage may occur to the reduction gear due to the contacting impact )