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10. Lubricating System
Preparing documents -----------10.1
Failure diagnosis ----------------10.2
Fuel pump ------------------------10.3
10.1 Preparing documents
Work Instructions
Worm gears and worm wheels shall rotate flexibly without being seized or imbalanced tightening. A little axial
movement shall be allowed for worm wheels. Fuel pump O-ring shall not cut the edge.
Machine oil pump plugs shall not leak and sealing gaskets shall be in good condition.
After installation, remove bolt 3 during engine trial running, and lock it when machine oil runs out continuously.
Function of the lubricating system:
the lubricating system of the engine is to provide lubricating oil to the
frictional surface of each part, which transforms dry friction into liquid friction between lubricating oil particles
and also reduces abrasion of parts. It also cools components with high thermal load, absorbs shock from bearings
and other parts, reduces noise, increases sealing between piston ring and cylinder wall, and cleans and removes
particles in the surface.
10.2 Failure diagnosis
Decreasing fuel Burnt engine
Natural consumption of fuel No fuel or low fuel pressure
Fuel leakage Blocked fuel pipes
Abrasive or incorrectly installed piston ring No fuel used
