Parker HLR070 Mounting Instructions

Contents

Parker HLR070 Mounting Instructions Manual pdf 47 page image

Parker EME Toothed belt192-510201N1 HLR 2019-04 475.5.2. Exchanging the toothed beltTaking into consideration the technical axis data and boundary conditions, thetoothed belt used is maintenance-free and must not be changed.Causes for abnormal toothed belt wearDue to external influences or error applications, a toothed belt exchange might benecessary. Causes for abnormal toothed belt wear are: toothed belt tension too big or too small impermissibly high drive torque, braking torque, or feed force operating or ambient temperature too high Contact with chemicalsA certain sign of wear may have different causes so that it is not always possible todetermine the exact cause. In case of abnormal belt wear it is recommended toreplace the belt and to check the application for the above mentioned "causes ofabnormal belt wear".Figure 15: Toothed belt exchangeAssembling sequence Dismantle and put aside the drive from the Linear actuator (see page 27).After dismantelling the carriage lid, the frontal stop surface of the carriage issharp-edged. If handled carelessly during maintenance, you might cut yourself.Protection gloves must be worn! Dismantle and put aside steel strip cover, steel strip deflectors and steel stripsliding rods (see page 43).Take care when loosening or screwing in the round-head screws. Make sure thatthe tool is axial to the screw and engages completely in the hexagon socket toprevent damage to the screw head. Loosen screws of the belt tensioning element Figure 15, Pos. 2) on both sides,carefully pull out and put aside the toothed belt with the belt tensioning element(Figure 15, Pos. 1) of the carriage (depending on the design, the belt tensioningelement is one-piece or two-piece). Pull out belt on one axis side.Clean the interior of the linear axis, deflection stations and carriage profile(grease, abrasion, other impurities). Cut the replacement belt to the required length using suitable sheet metal shears.Use the old steel strip cover as matrix.