Epson C Series, Maintenance Manual

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C4 Maintenance 8. Joint #4
104 C Series Maintenance Manual Rev.2
8.1 Joint #4 - Replacing the Motor
Removal: Joint #4 Motor
1. Turn OFF the Controller power.
Protect arms
using cloth, etc.
Tilt Arm #3
2. Remove the Arm #3 head cover and the Arm #3 bottom cover.
For details, refer to C4 Maintenance: 3. Covers.
3. Pull out the cables from the Arm #3 and disconnect the following
connectors.
Connector: X141, X041, BT4, BR041
(Hold the clip to remove.)
4. Remove the plate of the control board.
For details, refer to C4 Maintenance: 13.2 Joint #2 – Replacing the Motor , Installation steps (3) through
(5).
5. Remove the Joint #4 motor unit from the Arm #3.
Hexagon socket head cap bolts: 2-M4×15 (with a small plain washer)
Name Quantity Note
Maintenance
Parts
AC servo motor 50 W 1
For the part code, refer to the 17. C4
Maintenance Part List.
Tools
Hexagonal
wrench width across flats: 1.5 mm 1 For M3 hexagon socket set screws
width across flats: 3 mm 1 For M4 hexagon socket head cap bolts
Cross-point screwdriver 1 For covers
Force gauge 1 For belt tension adjustment