TM  10-3930-643-34 GENERAL  SUPPORT  ENGINE,  FUEL,  EXHAUST  AND  COOLING  MAINTENANCE.  (cont) 13-8. Pistons, Connecting Rods and Connecting Rod Bearings. (Sheet 2 of 12) REMOVAL Before removing piston and connecting rod inspect the upper edge of the cylinder sleeve for a ridge. If a ridge is found it must be removed with a fine crocus cloth and a carbon scraper or ridge reamer before the piston is removed. Failure to follow this procedure could result in damage to piston ring lands during removal  and  installation. NOTE Keep parts in order and observe markings  to prevent possible mismatching  during  assembly  and installation. Keep rod caps and bearings bolted to their original  connecting  rod. The following procedure is for one  piston  and  connecting rod assembly. The procedure for the other  five  piston  and  connecting rod  assemblies  is  identical. 1. Using a 5/8”   socket  and  socket  wrench handle, remove two bolts (1), cap (2) and two bearing halves  (3)  from connecting rod  (4)  in lower crankcase. Go to sheet 3 13-50