Ihagarikwa ryiza rya escalator pulley, irashobora guhindurwa hamwe ibice 17, ibice 19, ibice 21, ibice 23, ibice 25, cyangwa ibice 27. 609RS ifite, ikariso nziza ya nylon.
Iminyururu yacu ya escalator ikozwe muburyo bwiza bwa nylon skeleton, imyenda idashobora kwambara.