This handbook provides the main information concerning the repair of the following LOMBARDINI Diesel engines 3LD 450, 3LD 510, 3LD 451/S, 3LD 510/S, 4LD 640, 4LD 705, 4LD 820, which are air-cooled, provided with direct injection and revised on the 30-11-2001
DISASSEMBLY AND REASSEMBLY
Apart from disassembly and reassembly operations, this chapter also includes checks, setting up, dimensions, repairs and running instructions. It is necessary to use LOMBARDINI original spare parts for a correct repair.
Oil-bath air filter (standard)
Oil-bath type with double filtering mass. The lower mass is made of metal, while the upper is made of polyurethan. Check the gasket conditions and replace them in case they are damaged. Make sure that the weldings are not damaged. Carefully clean the lower body and the filtering masses using some gas oil, blow the lower mass with compressed air and dry the upper mass by means of a cloth. Fill with engine oil filter to the indicated level.
While reassembling, tighten the nuts at 25 Nm (3LD450, 3LD510, 3LD451/S, 3LD 510/S), at 30 Nm (4LD 640, 4LD 705, 4LD 820)
Details:
1 Upper body
4External sealing ring
2 Filtering mass made of polyurethan
5 Filterning mass
3 Internal sealing ring
6 Bowl
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