Doosan P158LE -III, Operation & Maintenance Manual, Page: 145 / 165

Maintenance of Major Components - 142 -
3) Aligning center
The center alignment of engine and Generator is the most important factor for the extension of life
cycle.
z
Output shaft flange and opponent side flange of Generator should be aligned in their centers
horizontal and parallel direction.
z
The adjustment between flange surfaces at the lower part should maintain less than 0.15 mm
when the upper part’s surfaces just meet and the deviation around the circumference should be
maintained within 0.1 mm as following figure.
For bed rail is apt to deform for 6 months after initial performance, adjusting the center should be
checked after 1 ~ 2 months.
5.5.3. Installing fuel system
Oil purifier should be installed between fuel tank and engine. For tank is always surrounded with
humidity, water part often Infiltrates into fuel and then engine to result in the nozzle stuck and engine
efficiency drop etc.
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Example of fuel system installation
The position of fuel tank should be high than the engine fuel pump but when it is compelled to install
at lower position, its lift should be within 1 m, and the fuel pipe be straight in order to prevent air
bubble generation.
Surface (TIR) Less than 0.15 mm
Center (TIR) Less than 0.1 mm
EA3O3001I
Less than 0.1 mm
Less than 0.15 mm
Bed installation
(Bubble generation)
Bed installation
(Bubble generation)
Bed installation
(Bubble generation)
Bleeding air
Filter
Filter
Feed pump
5 ~ 100 mm
Discharging
EFM8002I