Introduction General Information Technical terms 1044-004 Your CLAAS Service Department 00 0296 433 2 - RHB Dieselmotor OM906/926LA - 10/2014 7 Technical term Description recycle Re-use of used, defective or no longer required products Season Recurring periods of a year Ignition TDC Ignition top dead centre (diesel engine piston position) Overlap TDC Valve overlap top dead centre (diesel engine piston position) BDC Bottom dead centre (diesel engine piston position)