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Chapter 4 Periodic Inspections
8
Maintenance and inspection of harmonic drives
WARNING
The motor and speed reduction gear casing are extremely hot after auto-
matic operation, so burns may occur if these are touched. Before han-
dling these parts during inspection or servicing, turn OFF the controller,
wait for a while and check that the part has cooled.
WARNING
Precautions for handling harmonic grease and washing oil
• 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.
WARNING
Disposal of harmonic grease, spent washing oil and waste containers
• Disposal methods are specified by law. Always follow local laws when
disposing of these items.
• Do not apply pressure on an empty container. The container could rup-
ture if pressurized.
• Do not weld, heat, open a hole or cut this container. Failure to observe
this could lead to an explosion and igniting of the residual matter.
!
CAUTION
Use of grease not recommended by YAMAHA could lead to a drop in the har-
monic drive life.