Epson C Series Maintenance Manual page 27

Inspection Method
Inspection Point
Check looseness or
backlash of bolts/screws.
Check looseness of
connectors.
Visually check for external
defects.
Clean up if necessary.
Check for bends or improper
location. Repair or place it
properly if necessary.
Check either the external
short connector or the brake
release unit connector is
connected.
Check the break operation
Check whether unusual
sound or vibration occurs.
C Series Maintenance Manual Rev.2
Use a hexagonal wrench to check that the end effector mounting
bolts and the Manipulator mounting bolts are not loose.
When the bolts are loose, refer to "2.4 Tightening Hexagon Socket
Head Bolts" and tighten them to the proper torque.
Check that connectors are not loose.
When the connectors are loose, reattach it not to come off.
Check the appearance of the Manipulator and clean up if necessary.
Check the appearance of the cable, and if it is scratched, check that
there is no cable disconnection.
Check that the safeguard, etc. are located properly.
If the location is improper, place it properly.
Check whether external short connector or
break release connector is connected.
When neither is connected, connect either
one.
Check that the arm does not fall when in MOTOR OFF.
If the arm falls when in MOTOR OFF and the brake is not released,
contact the supplier.
Check that there is no unusual sound or vibration when operating.
If there is something wrong, contact the supplier.
C4 Maintenance 2. General Maintenance
Inspection Method
7