About Overhaul - Mitsubishi Electric RH-FRH Series Instruction Manual

5 Maintenance and Inspection

5.4 About Overhaul

Robots which have been in operation for an extended period of time can suffer from wear and other forms of
deterioration. In regard to such robots, we define overhaul as an operation to replace parts running out of speci -
fied service life or other parts which have been damaged, so that the robots may be put back in shape for contin -
ued use. As a rule of thumb, it is recommended that overhaul be carried out before the total amount of servo-on
time reaches the specified time (24,000 hours for the robot arm and 36,000 hours for the controller). (See
27.) However, the degree of the equipment's wear and deterioration presumably varies depending on their operat -
ing conditions. Especially for operation with high load and frequency, the maintenance cycle may be shorter. For
details on the part selection for replacement and the timing of overhaul, contact your dealer.
Shipment
Predetermined time period
Periodic inspection
Fig.5-27 ： Periodic inspection/overhaul periods
About Overhaul
5-139
If overhaul is not performed
Over -
haul
If overhaul is performed
Servo-on time
Fig. 5-