Epson G3 Series - Manual (Page 79)

Maintenance 2. General Maintenance
G3 Rev.1 69
2.2 Inspection Point
2.2.1 Inspection While the Power is OFF (Manipulator is not operating)
Inspection Point Inspection Place Daily Monthly Quarterly Biannual Annual
End effector mounting bolts √ √ √ √ √
Manipulator mounting bolts √ √ √ √ √
Each arm locking bolts √ √ √ √ √
Bolts/screws around shaft √
Check looseness or backlash of
bolts/screws.
Tighten them if necessary.
(For the tightening torque, refer to
Maintenance: 2.4 Tightening
Hexagon Socket Head Cap Bolts.)
Bolts/screws securing motors,
reduction gear units, etc.
√
External connectors on
Manipulator (on the connector
plates etc.)
√ √ √ √ √
Check looseness of connectors.
If the connectors are loosen, push it
securely or tighten.
Manipulator cable unit √ √ √ √
External appearance of
Manipulator
√ √ √ √ √ Visually check for external defects.
Clean up if necessary.
External cables √ √ √ √
Check for bends or improper
location. Repair or place it properly
if necessary.
Safeguard etc. √ √ √ √ √
Check tension of timing belts.
Tighten it if necessary.
Inside of Arm #2 √ √
Grease conditions Refer to Maintenance: 2.3 Greasing.
2.2.2 Inspection While the Power is ON (Manipulator is operating)
Inspection Point Inspection Place Daily Monthly Quarterly Biannual Annual
Check motion range Each joint √
Move the cables back and forth
lightly to check whether the cables
are disconnected. External cables
(including cable unit of the
Manipulator)
√ √
Push each arm in MOTOR ON
status to check whether backlash
exists.
Each arm √
Check whether unusual sound or
vibration occurs.
Whole √ √ √ √ √
Measure the accuracy repeatedly by
a gauge.
Whole √