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Chapter 4 Periodic Inspection
4-2-3
4-2-4
Six-month inspection
Check the following points every six months, and make adjustments or apply grease if necessary.
Checkpoints
Main bolts and screws
on robot
Ball screw and linear guide
Controller
Lubrication of ball screw nut
and linear guides
Belt
Slider
(Belt type or F20N)
CAUTION
Using a grease other than recommended by YAMAHA may shorten the service life of
the ball screw, linear guide and linear bushing shaft.
Three-year inspection
Inspect the following points once every three years, and contact us if any problem is found. Set an
earlier inspection interval if parts are subject to long-term or frequent usage.
Checkpoints
Ball screw nut sections and
linear guides
Check items
Check for looseness. If loose, tighten.
Check for looseness in the ball screw and linear guide.
Tighten if necessary.
Check for vibration during operation.
Tighten drive section, and X and Y axis installation bolts
if necessary.
Check for wear and backlash. If any abnormality is found,
contact YAMAHA sales office or dealer.
Check for loose terminals.
Check for loose connectors.
Apply Alvania No.2 (Showa Shell),
Daphne Eponex No.2 (Idemitsu Sekiyu) to the ball
screw nut and linear guides.
Check the timing belt for wear, cracks or cuts.
Check the timing belt tension.
(See "3-2 Adjusting the timing belt tension" in chapter 3.)
On robot models using a long stroke, check the slider
inside the upper cover for abnormal wear or damage.
(See "3-1 Attaching the upper cover" in Chapter 3.)
Check items
Check for wear and looseness in the ball screw, nut and
linear guide.
4-6
Notes
If problem is
not solved
or wear and
backlash are
found, please
contact us.
See "4-3" in
this chapter
Notes
Contact us if
trouble is found.
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