CHAPTER ċ ENGINE MAINTENANCE
To ensure a longer service life, the engine should be maintained according to the following
procedure.
1. DAILY MAINTENANCE
Check the oil level in oil sump, to ensure the oil level be between the two marks on the oil
dipstick.
Check water quantity in water tank.
Check the oil level in injection pump and speed adjustor, refill to specified position when
insufficient.
Check and remove any oil, fuel, water and gas leakage.
Check for the tightness of each attached parts.
Check for the tightness of engine bracket.
Keep the engine clean,and remove dirt and mud. Special care must be taken to ensure the
electrical equipments dry and clean. After 45 hours wearing - in of new engine with light load, oil
should be replaced and the oil filter cartridge should be cleaned in time.
Remove other troubles and abnormals.
2. MAINTENANCE AFTER 100 HOURS
Replace oil in oil sump
Clean or replace oil filter cartridge.
Clean or replace fuel filter cartridge (or after 200 hours)
Check for tightness of cylinder head bolts.
Check valve clearance and adjust when necessary.
Check fan belt tightness and adjust when necessary.
Remove dirt in intake pipe and air filter.
Check injection and injection pressure after 200 hours. Clean and adjust when necessary.
Check tile accumulator voltage. The specific gravity of electrolyte should be 1.28 - l.
29, when air temperature at 15°C. It is normally not lower than 1.27.
Check whether the electrolyte level is 10 to l5mm higher than polar plates. Otherwise fill in
vaporized water.
Replace cooling water when not clean.
Take out thermostat, assemble water outlet pipe, start the engine and change the engine speed
alternatively so as to change the cooling water flow speed to wash out sediment. Then stop the
engine and open the water cock both on cylinder block and water tank to drain water.
While fill clean water into the water tank, restart the engine and run in idle to make water flow.
Close the water cocks as soon as the drained water is clean. Stop the engine and reassemble the
thermostat.
To ensure the parts disassembled for maintenance are reassembled correctly.
3. MAI NTENANCE AFTER 500 HOURS
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