IAI America RCS2W - Manual (Page 82)

4. Maintenance Inspection
74
4.5 Procedure for Belt Replacement and Tuning
Applicable Untis : RCS2-RA4R, RA5R
4.5.1 Inspection of the Belt
For inspection work, detach the cover of a pulley case and carry it out by visual.
The replacement period cannot be determined in general because the durability of the deceleration belt can be
greatly influenced by the conditions of operation.
It generally has life of hundreds of times for bending movement.
The timing belt requires replacement regularly under the following conditions as a reference since degradation
such as abrasion proceeds as the time passes for usage.
x When remarkable abrasion is confirmed on the teeth or edges of the belt
x When the belt is swelled for such reasons as oil being attached on
x When damage is confirmed such as crack on the tooth or back of the belt
Also, since it is difficult to confirm the degradation of the core wires to retain the strength of the teethed belt by
visual or looseness caused by being elongated, it is recommended to set regular replacement periods in advance
in case the product is used under such conditions that gives the core wires great fatigue due to high acceleration
and deceleration speed.
4.5.2 Belts to be used
The following belt is applied when the product is shipped out from IAI factory.
x RA4R - 60S2M152R Rubber, cleanroom type (Bando Chemical Industries) 6 mm wide
x RA5R - 100S3M219R Rubber, cleanroom type (Bando Chemical Industries) 10 mm wide