3
Adjustment
3-3
2.1 Adjusting the drive belt tension
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
Take off the end cover.
5
Remove the upper cover.
Remove the upper cover mounting screws
and remove the upper cover.
c
CAUTION
On robot models having a long stroke, the slider is
fitted in the travel guide (U groove) inside the
upper cover, so remove the upper cover by sliding
it along the direction the robot moves.
6
Apply a tension to the belt.
1. Install the belt tension adjustment bolt
supplied with the robot.
2. Loosen the belt stay mounting bolts (8).
3. Turn the adjustment bolt to apply a
tension to the belt.
Applying a tension
Step 6
Belt stay bolt
Belt stay
Tension adjusting bolt
53305-AC-00
7
Apply a load.
Move the slider by hand to a position at
which the distance from the slider edge to
the base block edge is 150mm.
Apply a load to the belt at a position 115mm
(B10) or 129mm (B14 , B14H) away from the
slider edge.
Adjusting the speed reduction belt tension
Step 7
Push-pull scale
Slack
Load
Pulley
Pulley
Belt
L/2
L/2
53304-AC-00
Load application position
Step 7
150mm
L
53306-AC-00
8
Tighten the belt stay mounting
bolts temporarily.
9
Check the slack amount.
It is accepted that the slack is within the
range stated in the table below when the
belt is pushed with a specified load.
If the slack is beyond the range, repeat
Steps 5 and 6 to adjust the belt tension.
Load and slack for drive belt tension
Robot model
Load
Slack
(mm)
(N)
(kgf)
B10
4.9 to 5.9
0.5 to 0.6
2
B14/B14H
5.9 to 6.9
0.6 to 0.7
2
0
Tighten the belt stay mounting
bolts.
FLIP-X_maint_E_V1.50.indb 3
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