4-5
Chapter 4 Periodic Inspections
7 Replenishing the grease
WARNING
Precautions for handling grease
• Inflammation may occur if the grease gets into eyes.
Always wear protective goggles, etc., to protect eyes when handling
the grease.
• Inflammation may occur if the grease gets on skin. Wear protective
gloves, etc., to protect skin when handling the grease.
• Do not consume the grease. (Consumption of grease will cause diarrhea
and vomiting.)
• Wear protective gloves when opening the can to prevent injury to hands.
• Store the grease out of the reach of children.
• Do not heat the grease or place it near fire. There is a risk of igniting or
fires.
Remedial measures
• If the grease gets into eyes, flush eyes for 15 minutes with clean water,
and then see doctor.
• If the grease gets on skin, wash off completely with water and soap.
• If the grease is consumed, do not induce vomiting, and instead con-
sult with a doctor immediately.
!
CAUTION
Use of grease not recommended by YAMAHA may lead to a drop in the ball
screw, linear guide, ball spline and linear bushing shaft life. When using the
clean room specifications, the degree of cleanliness may drop.
!
CAUTION
When replenishing clean grease, manually apply a thin coat on the screws and
the entire length of the spline shaft.

Refer to the periodic inspections in the explanation for each robot in Chapter 6

and following, and replenish the grease. Observe the following points when re-

plenishing the grease.