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2.3
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WARNING
• BEFORE STARTING THE REPLACEMENT WORK, BE SURE TO DISCONNECT THE ROBOT FROM THE CONTROLLER OR
TURN OFF THE CONTROLLER POWER. IF THE ROBOT OPERATES DURING THE REPLACEMENT WORK, THIS MAY CAUSE
SERIOUS ACCIDENT.
• THE REPLACEMENT WORK WITH THE COvER REMOvED MUST BE PERFORMED ONLY BY PERSONS WHO HAvE THE
REQUIRED QUALIFICATIONS DESCRIBED IN "2. QUALIFICATION OF OPERATORS/WORKERS" IN SECTION 4.1 OF
"SAFETY INSTRUCTIONS".
• BE CAREFUL NOT TO NEGLECT TIGHTENING SCREWS OR BOLTS. IF ANY COvER IS NOT SECURED FIRMLY, THIS MAY
CAUSE NOISE, COvER DROPPING AND FLYING, HAND ENTANGLEMENT IN DRIvE UNIT DURING TEACHING, OR BURN
DUE TO HAND IN CONTACT WITH HOT SURFACE. SO, BE SURE TO TIGHTEN ALL THE SCREWS AND BOLTS SECURELY.
c
CAUTION
• Since a positional shift occurs after replacing the motor, return-to-origin must be performed again and the
point data must be re-specified. When removing the parts, check and mark the part positions versus each
other so you can correctly reassemble the parts later.
• Be sure to wear safety gloves before starting the work. If you touch any steel material part with bare hands, this
4
may cause rust.
• Be careful not to drop any screw or bolt during cover removal work.
Turn off the controller power.
1
Place a sign indicating the robot is
2
being adjusted.
Place a sign indicating the robot is being
adjusted, to keep others from operating the
controller or operation panel.
3
Enter the safety enclosure.
4
Remove the belt cover.
5
Remove the motor case and motor
cover.
6
Remove the motor.
Remove the motor mounting bolts (4) and
remove the motor.
7
Remove the pulley.
Loosen the set screws (2) of the pulley and
remove the pulley.
8
Replace the motor with a new one
and attach the pulley to this new
motor.
At this time, insert the pulley so that the D
face of the motor shaft is in contact with the
set screws (2 parts) vertically. Projecting the
set screws approx. 0.1 to 0.2mm will ensure
the easy assembly work.
Install the motor to the motor
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plate.
0
Fit the belt onto the pulleys.
q
Adjust the belt tension.
Adjust the belt tension while referring to
"2. Adjusting the timing belt tension (B10/
B14/B14H)" in Chapter 3.
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Reattach the motor case and cover.
e
Reattach the belt cover.
4-8
B10/B14/B14H
Step 5
Removing the motor case and motor cover
53401-AC-00
Step 6
Removing the motor
53402-AC-00
53403-AC-00
Step 7
Removing the pulley
Motor cover
Motor case
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