Maintenance 8. Joint #4
C12 Rev.3
237
8.3 Joint #4 - Replacing the Timing Belt
Name
Qty.
Note
Maintenance
Parts
Timing belt (Joint #4)
1
1655931
Belt tensile jig
1
1674582
Tools
Hexagonal
wrench
width across flats: 2.5 mm
1
For M3 hexagon socket head cap bolt
width across flats: 3 mm
1
For M4 hexagon socket head cap bolt
Cross-point screwdriver (#2)
1
For cross recessed head screws
Belt tension meter
1
Refer: Unitta U-505
Nippers
1
For cutting the wire tie
Masking tape
1
For protecting the connector clips
Wire tie (AB100 or equivalent)
As
needed
For passing the cables
Braid tube (600 mm or longer)
1
For passing the cables
* The belt tensile jig is an assembly jig. Use the jig when adjusting belt tension.
The brake is mounted on each joint to prevent the arm from lowering due to its own weight while the
C
ontroller power is OFF or the motor is OFF status. The brake does not work during replacement. Be
careful when performing maintenance work.
Removal: Joint #4 Timing belt
1.
Remove the Joint #4 motor unit.
For details, refer to
Maintenance: 8.1 Joint #4 – Replacing the Motor
, Installation steps (1) through (6).
2.
Remove the connectors inside the Arm #3 and the air tube (transparent).
Connectors:
X71, X72, X041,
BR041, BR051, PS,
BT4, BT51, X141, X151, X161
3.
Remove the cable bracket inside the Arm #3.
Hexagon socket head cap bolts: 4-M4
×
10
Summary of Contents for C12 Series
Page 1: ...Rev 3 EM204R4255F 6 Axis Robots C12 series MANIPULATOR MANUAL ...
Page 2: ...Manipulator manual C12 series Rev 3 ...
Page 8: ...vi C12 Rev 3 ...
Page 14: ...Table of Contents xii C12 Rev 3 ...
Page 16: ......
Page 30: ...Setup Operation 2 Specifications 16 C12 Rev 3 2 4 Outer Dimensions Unit mm ...
Page 84: ......
Page 155: ...Maintenance 4 Cable Unit C12 Rev 3 141 4 2 Connector Pin Assignment 4 2 1 Signal Cable ...
Page 156: ...Maintenance 4 Cable Unit 142 C12 Rev 3 ...
Page 157: ...Maintenance 4 Cable Unit C12 Rev 3 143 ...
Page 158: ...Maintenance 4 Cable Unit 144 C12 Rev 3 4 2 2 Power Cable ...