SAFARI

71 486 PL ENGINE P Install A.C. compressor bracket with tensioner. Fig 176 Fit AC compressor. Ride the AC belt over vibration damper, compressor pulley and tensioner as shown Fig 177 Procedure for tensioning of AC belt l Remove cap À and loosen nut Á slightly. Fig 178 l For tensioning, rotate the tensioner screw in anti-clockwise direction. Tighten the nut Á with 4 kgm torque. Fig 179 l C heck belt tension at midspan of vibration damper and AC pulley with 'clavis gauge'. a. Frequency should be 105 + 10 Hz for new belt. b. Belt to be retensioned to 90 + 10 Hz on vehicle after running for 15 minutes. l Similarly adjust the alternator / power steering belt tension. The belt tension measured at midspan of alternator pulley and power steering pump pulley with "clavis gauge should be 250 + 10 Hz for new belt. Belt to be retensioned to 220 + 10 Hz on vehicle after running for 15 minutes. Precautions 1. Keep belt tension in the given range. 2. Ensure fitment of cap after every tensioning. 3. Do not use sharp tool for belt assembly. Fig. 178 Fig. 177 Fig. 176 À Á Fig. 179