5-6
CHAPTER 5 Periodic Inspection
(1) Inspection to be performed with the controller turned off
1) Turn off the controller.
2) Place a sign showing that the robot is being inspected, to keep others
from operating the controller switch.
3) Enter the safeguard enclosure and check the following points.
Checkpoint Procedure
Manipulator bolts and screws (Only for
major bolts and screws exposed
externally)
Z-axis and R-axis timing belts
Detection areas of the origin sensors of
the X-axis, Y-axis, and R-axis
Controller
Grease lubrication of Z-axis ball screw,
spline, linear shaft
Z-axis ball spline, ball screw
Check for looseness and tighten if necessary.*1
Check belt tension. (See 8 in Chapter 4.)
Clean if it is dirty.
Check for looseness at each terminal and connector on the
panel. (See 4 in Chapter 3.)
Every 6 month, lubricate the Z-axis ball screw nut with
grease gun, and the linear shaft, spline shaft and ball screw
shaft by hand after removing the old grease. The specied
grease is Alvania No.2 (SHOWA SHELL SEKIYU KK).
Check for backlash. (If any abnormality is found, contact
OMRON dealer.)
*1 Bolt tightening torque
Bolt size Tightening torque (kgf·cm) Tightening torque (N·m)
M3 button head bolt 14 1.4
M4 set screw 20 2.0
M3 20 2.0
M4 46 4.5
M5 92 9.0
M6 156 15.3
M8 380 37
M10 720 71
M12 1310 128
M14 2090 205
WARNING
DISPOSING OF GREASE AND THE CONTAINER:
•PROPER DISPOSAL IS COMPULSORY UNDER FEDERAL, STATE AND
LOCAL REGULATIONS. TAKE APPROPRIATE MEASURES IN
COMPLIANCE WITH LEGAL REGULATIONS.
• DO NOT PRESSURIZE THE EMPTY CONTAINER. PRESSURIZING MAY
CAUSE THE CONTAINER TO RUPTURE.
• DO NOT ATTEMPT TO WELD, HEAT UP, DRILL HOLES OR CUT THIS
CONTAINER. THIS MIGHT CAUSE THE CONTAINER TO EXPLODE AND
THE REMAINING MATERIALS INSIDE IT TO IGNITE.
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