Note On Maintenance; Wrist Unit - YASKAWA MH50II Operating And Maintenance Manual

9.3

Note on maintenance

NOTICE
The absolute encoder data will be lost.
Removing the encoder connector without connecting the battery pack results in the
disappearance of the encoder absolute data.
 When performing maintenance such as replacement of a wire harness in the robot, the
encoder connector may be necessary to be removed. In this case, be sure to connect
the battery pack to the battery backup connector before removing the encoder
connector. The battery connectors are dealt with in the chapter 9.2.1 "Changing battery
unit"on page 56.
9.3.1

Wrist unit

The motor and encoder units are provided with the wrist unit. To prevent fumes penetrating
into wrist unit, matched parts are sealed. If you have removed the wrist cover, the seal must
be replaced with sealing compound Teroson Plast sealing compound (material no. 143813)
(see section 10 "Recommended spare parts list" on page 76).
Cover jointing face
1
2
1
1
2
Fig. 9-8: Sealing wrist unit
Cover
2
Maintenance and inspection
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