Parker HLR070 Mounting Instructions

Contents

Parker HLR070 Mounting Instructions Manual pdf 45 page image

Parker EME Toothed belt192-510201N1 HLR 2019-04 455.5 Toothed beltIn this chapter you can read about:Checking and setting toothed belt tension........................................................................ 45Exchanging the toothed belt ............................................................................................ 475.5.1. Checking and setting toothed belt tensionAn uncorrect toothed belt tension may cause the belt to jump. This may cause aloss of position. This may lead to collisions or may cause property damage andpersonal injuries. Belt pre-tension must always be observed.Toothed belt pre-tension is matched to the technical axis data and considerspossible belt tension losses after installation. When operating under normalconditions and in compliance with technical specification, re-tensioning of thetoothed belt is not necessary.Is a belt tension loss suspected, the toothed belt tensions must be verified and ifnecessary corrected as follows:Assembling sequenceFigure 14: Check and adjust toothed belt tensionAfter 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). If possible, carefully drive carriage to end stop of pulley housing. Check belt on both carriage sides for abnormal wear (belt back and tooth flanks).In case of heavy wear, we recommend replacing the toothed belt (see page 47). Measure the free belt length (Figure 14, L01) between the middle level of thepulley (Figure 14, Pos. 1) and the belt tensioning element (Figure 14, Pos 3). Enter the measure belt length (Figure 14, L01) as well as the belt weight (Table14) in the belt tension gauge.We recommend to use the gauges “Sonic 507c” of the company Gates resp. the"Trummeter" gauge of the company Hilger&Kern. For precise measurement, theoperating manual of the measurement equipment must be observed.