TM 5-3810-207-20/TO 36C23-3-37-12Figure 141. Turn signal switch, removal and installation, exploded view.Section II. CARRIER LUBRICATION SYSTEM239. GeneralEngine lubrication is furnished by a geartype,recirculating oil pump which is driven from the camshaft.The pump is located in the crankcase and forces oilthrough the oil filter to the main gallery line and isdistributed to the main bearings and other lower parts ofthe engine. Oil to the rocker arms is fed up through thefront cam journal, through a passage in the front of theblock leading through the head gasket, into the frontcylinder head, to the front rocker arm shaft, through thefront rocker arm shaft, then down to a passage in theblock, and up to the rear cylinder head. From the rearcylinder head the oil travels through the rear rocker armshaft, down through the block, through the filter, into thecooler, and back to the crankcase.240. Crankcase Breathera.Removal. Remove the breather as instructedon figure 142.b.Cleaning, Inspection, and Repair.(1)Clean all parts with an approved cleaningsolvent and dry thoroughly.(2)Inspect all parts for breaks, leaks, dents, andother damage. Repair or replace all damagedparts as necessary.184
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