YASKAWA MA1440, Operating And Maintenance Manual

Page: 61 / 98

Maintenance and inspection
9
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61
9.4 Refill/Replace grease.
Make sure to follow the instructions. If the following instructions are not followed, it might
cause damage to motor or gear.
CAUTION!
Burns from heated grease
The grease may be under pressure and may spray out of the threaded hole when opening
the threaded hole.

Wear safety goggles
NOTICE

Make sure that the plug has been removed from the grease outlet. If the plug is not
removed, grease will enter the motor or the oil seal of the gear will be damaged. This
might cause damage to the motor or gear.

Lubrication or grease replacement is only allowed at operating temperature.

Lack the labels "IN and" OUT "is generally lubricated from the bottom up.

Do not install a joint, hose, etc. to the grease outlet. If this instruction is not followed, the
motor will be damaged.

Avoid air getting into the gear.

Insert grease with a grease gun.

If an automatic lubricating pump is used, the grease supply pressure must be 0.3 kPa.

Set the grease injection rate to a value not higher than 7 g/s.

The limit values may not be exceeded also if a conventional grease gun is used.

In ceiling-mounted robots the grease outlet and the grease inlet are located the other
way around (related to the figures in the operating and maintenance instructions).

Install a receptacle at the grease outlet.

Exchanged grease must be disposed of in an environmentally sound manner.
Tab. 9-2: Grease used
The safety data sheets for the grease can be requested from YEU-R.
Inspection points and grease used
Grease used Material no. Inspected parts
Vigo grease RE no. 0 176827 S-, L-, U axes gear
Harmonic grease SK-1A 176983 R- and B-axes gear
Grease Shell Gadus S2 V220
2 146745 T-axis pinion