Pin valve of the fuel injection nozzle and pin valve body are the precise couple parts by grinding,
during dismantling, do not exchange it and keep it clean.
8、 Lubrication systems
The lubrication system consists of the oil collecting and filter, oil pump, lubrication filter and
kinds of the pipes, referring to Fig11.
Diesel adopts pressure and splash lubricate. Crankshaft headstock, connecting rod bearing,
rocker shaft and camshaft and bushing adopt pressure lubricate. cylinder bushing,piston,piston
pin, connecting rod bushing, camshaft and lever, valve and valve guide and so on are depend on
the oil-burme splash lubricate. Moreover the roll bearing in water pump adopts to inject the
grease lubricate.
The lubrication in the sump must to pass the oil collecting and filter, and will be inbreathed to
the oil pump pass the vitta,after adding the pressure get to the lubrication filter, then put in the
engine divide into three ways: one of them pass the headstock, reach the connecting rod bearing
through the crankshaft hole; one reach to oil slot on the back shaft of the cam bush and supply
the oil by intermissive; one reach to the gear wheel bearing. oil pump adopt rotor pump by
slantwise. oil filter is single paper sieve core, and it is instead. during useing,if the filter core plug,
open the safety valve the lubrication in flood the main oil pipe, but lose the filter, so must
conform to the rule of "maintain technology”, clear or change the filter core by stated.
1, Sump 2, Oil collecting filter 3, Oil pump 4, Piston-connecting rod assembly
5,Oil filter 6,Great system 7,Oil pressure gauge 8,Valve push rod, Valve lever 9,Rocker arm 10,Valve
rocker shaft 11,Vavle and valve Guide 12,Camshaft and bushing 13,Oil passage in the cylinder block
14,Cramshaft and bearing
Fig.11 the Lubricating System Schematic Map
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