C4 Maintenance  3. Covers 
 
C Series Maintenance Manual Rev.2  19 
3.9    Connector Sub Plate 
 
CAUTION 
■ 
Do not remove the connector sub plate 
forcibly.  It may result in damage to the 
cables, disconnection, and/or contact failure.  
These are  extremely hazardous 
and may result in electric shock and/or improper function of the robot system.
 
■ 
When installing the connector sub plate, b
e careful not to get the cables caught in 
 or bend them forcibly to push into the cover. 
Unnecessary strain on cables may result in damage to the cables, disconnection, 
and/or contact failure.   
These are extremely hazardous and may result in electric 
function of the robot system. 
routing the cables, check the cable locations at removing the connector sub 
.  Be sure to place the cables back to their original locations. 
4-M4×8 
(Hexagon socket head cap bolts) 
Tightening torque: 4.0±0.2 N·m 
 
 
3.10  User Plate 
 
CAUTION 
■ 
Do not remove the connector plate 
forcibly.    It may result in damage to the cables, 
disconnection, and/or contact failure.    These are extremely hazardous and may 
result in electric shock and/or improper function of the robot system.
 
■ 
installing the user plate, be careful not to get the cables caught in it or bend 
m forcibly to push into the cover. 
Unnecessary strain on cables may result in damage to the cables, disconnection, 
and/or contact failure.    These are extremely hazardous an
d may result in electric 
function of the robot system. 
routing the cables, check the cable locations at removing the user plate
 place the cables back to their original locations. 
 
2-M3×6 
(Hexagon socket head cap bolts) 
Tightening torque: 2.0±0.1 N·m