Set-up ETH- Electromechanical Cylinders24 192-550002N2 ETH Mounting instructions March 20112.4 Exchanging the toothed beltNote: Standard North American supplied ETH paralleldrives will be supplied with a bearing support placedbetween the parallel housing and motor.Figure 1: Parallel housing Figure 2: Parallel motorDismounting the motor (see on page 19)◆ Loosen and remove 4 screws (Fig. 1 Pos. 1).◆ Remove lid (Fig. 1 Pos. 3).◆ Remove bar (Fig. 1 Pos. 5).◆ Remove old toothed belt and insert new belt.ATTENTION: Please make sure that the toothed belt is correctly geared in the pulley toothing.◆ Insert bar (Fig. 1 Pos. 5).◆ Fit lid (Fig. 1 Pos. 3).◆ Apply screw adhesive “Loctite 242 or Wiko 02K43 medium” to 4 screws (Fig. 1 Pos. 1) and tightenslightly.◆ Align housing (Fig. 1 Pos. 2) with the electro cylinder.◆ Tighten 4 screws (Fig. 1 Pos. 1) with the given tightening torque.ETH032 ETH050 ETH0809 Nm 20 Nm 40 Nm◆ Mounting the motor (see on page 19)Setting the toothed belt pre-tension:◆ For the used toothed belt (see on page 22).◆ For a new toothed belt (see on page 23).◆ Mount lid (Fig. 1 Pos. 6) with screws (Fig. 1 Pos. 9).◆ Mount lid (Fig. 1 Pos. 4) with screws (Fig.. 1 Pos. 11).2.5 Belt / belt tensionsETH032 ETH050 ETH080Art. No. Belt 0111.913 0121.913 0131.913Belt pre-tension 210 N ± 7 N 230 N ± 7 N 450 N ± 14 NTrum Frequency* 438 Hz ± 14 Hz 306 Hz ± 10 Hz 236 Hz ± 8 HzBelt mass 0.060 kg/m 0.080 kg/m 0.120 kg/mCenter distance 67.5 mm 87.5 mm 130 mm*Alternatively, the frequency for setting the pre-tension can be used.8411172514139612151036897 32514