Fanuc Robot M-20iA

Mechanical unit cable and welding cable

Retightening external main bolts

Check the mechanical stopper and adjustable mechanical stopper

Cleaning each parts and inspection

Check the end effector (hand) cable

Supply grease to J6-axis reducer (M-20iA/20M)

i) Replenish the J6-axis reducer with grease about every 12 months or after 3840 hours of operation.

ii) See Fig. 3.1 and Table 3.1 for greasing points and the method.

Check the mechanical cable. (Damaged or twisted)

Check the motor connector. (Loosening)

Retightening extemal main bolts

Check the mechanical stopper and adjustable mechanical stopper.

Check the oil sight glass of J4 to J6 axis

Warning: This maintenance check requires trained personnel with PPE!

Oil sight glass of J4, J5/J6-axis gearbox checked

Is the amount of oil above Fig.7.2.3.2 (d), Fig.7.2.3.3 (c) and Fig. 7.2.3.4 (c)?

Is the oil level above the sight glass through the vent plug?

Oil level checked with a flashlight

Is the oil discolored due to deterioration or the quality is questionable?

If oil is discolored, refer to Subsection 7.2.2 about replacing method of oil.

Cable connected to the teach pendant and robot checked for uneven twists

Sign off on the maintenance check

Check the oil sight glass of J4 to J6 axis

Check the oil sight glass of J4 to J6 axis