Epson G3 Series manual Inspection Point, Inspection While the Power is on Manipulator is operating

Maintenance 2. General Maintenance

2.2Inspection Point

2.2.1Inspection While the Power is OFF (Manipulator is not operating)

Inspection Point	Inspection Place	Daily	Monthly	Quarterly	Biannual	Annual
Check looseness or backlash of	End effector mounting bolts	√	√	√	√	√
bolts/screws.	Manipulator mounting bolts	√	√	√	√	√
Tighten them if necessary.	Each arm locking bolts	√	√	√	√	√
(For the tightening torque, refer to	Bolts/screws around shaft					√
Maintenance: 2.4 Tightening	Bolts/screws securing motors,					√
Hexagon Socket Head Cap Bolts.)
	reduction gear units, etc.
Check looseness of connectors.	External connectors on
	Manipulator (on the connector	√	√	√	√	√
If the connectors are loosen, push it
	plates etc.)
securely or tighten.
	Manipulator cable unit		√	√	√	√
Visually check for external defects.	External appearance of	√	√	√	√	√
	Manipulator
Clean up if necessary.
	External cables		√	√	√	√
Check for bends or improper
location. Repair or place it properly	Safeguard etc.	√	√	√	√	√
if necessary.
Check tension of timing belts.	Inside of Arm #2				√	√
Tighten it if necessary.
Grease conditions	Refer to Maintenance: 2.3 Greasing.

2.2.2Inspection 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	External cables
lightly to check whether the cables	(including cable unit of the				√	√
are disconnected.	Manipulator)
Push each arm in MOTOR ON
status to check whether backlash	Each arm					√
exists.
Check whether unusual sound or	Whole	√	√	√	√	√
vibration occurs.
Measure the accuracy repeatedly by	Whole					√
a gauge.

G3 Rev.1 69