3
Adjustment
3-6
3. Adjusting the timing belt tension (F20N)
The F20N robot uses a timing belt.
If the tension of the timing belt is weak, follow the steps below to adjust the belt tension.
First, the following describes how to install and remove the cover.
w
WARNING
• BEFORE STARTING THE WORK, BE SURE TO DISCONNECT THE ROBOT FROM THE CONTROLLER OR TURN OFF THE
CONTROLLER POWER. IF THE ROBOT OPERATES DURING WORK, THIS MAY CAUSE SERIOUS ACCIDENT.
• THE ADjUSTMENT 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
• Be sure to wear safety gloves before starting the work. If you touch any steel material part with bare hands, this
may cause rust.
• Be careful not to drop any screw or bolt during cover removal work.
3.1 Installing and removing the cover
3.1.1 Stroke cover
■
Removing the stroke cover
1
Turn off the controller power.
2
Place a sign indicating the robot is
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 mounting screws from
both ends.
Remove the mounting screws (M4, pan-
head screws).
Removing the mounting screws
Step 4
Center cover
Side cover
53302-A9-00
5
Pull out the cover.
Move the table slider to the stroke end and
pull out the cover.
Pulling out the cover
Step 5
End block
Motor block
Table slider
53301-A9-00
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