CONTENTS
I .Configuration and Installation Dimensions
of
Model YSD490Q Diesel EnRine
...•..
I
II
.Performance Curves
of
Model YSD490Q Diesel
EOj:~ine
,
.••..•...•....••......
11
SECTION 1. DIESEL ENGINE SPECIFICATIONS
AND
TECHNICAL DATA
I . Specifications
of
diesel engines
................•••.
,••. .•. .•• ••.
•••
.•.
•••
•.• •.• I-I
Il .Specifications
of
the main accessories'" •.. .
........••...•.
,.
1-2
III .Main technical data
of
diesel engines
.............•...
,
•.....
'"
.•••..••...•....•.
1-3
IV
.Fit clearance and wear limit
of
main parts •.•.•••..•.••.....
1-
4
SECTION 2. OPERATION
I . Fuel oil,lube oil and cooling water
.....
,
.••...•...•.•...••.•.•...•...•.•••...•....
2-1
II
.Preparation before starting
•••..•....•.....•••........••••••
'"
...
•••
••.
•••
.
••....••
2-2
111
.Starting
.•..•...............•
.
•....••.•....................•..
2-2
IV
.Operating ,,.
............•........
.
..•.•...•.•.....•...•.••••.••
2-3
V . Stopping ., ,. ..• .•. ..• .2-3
SECTION 3. MAINTENANCE
I . Routine maintenance
3-1
JI
.Maintenance after every 100 accumulated operating hours
..............•......•..
3-1
III .Maintenance after every 500
accum~lated
operating hours'" •.. •.. ..• ••. •.• ••. ..• 3-2
IV
.Preservation and storage
of
engine •.. .•. .•. ..• ..• 3-3
SECTION 4. ENGINE ADJUSTMENT
I . Adjustment
of
valve lash ,
4-1
Il .Adjustlnent
of
injection timing
'"
.•...
,
....•.............•..............•..•...•.
4-1
III .Adjllstment
of
injector ,
'"
.,
.•.
,.•.
'"
.,
•.•...................•..•....
,4-2
IV
.Adjllstment
of
lube oil pressure
'" '"
...........................•.....
4-4
V . Adjustlnent
of
injection pump
.....................................•................
4-4
VI
.Adiustment
of
decompression arm lash :
'"
,
...•
'"
"'4-4
SECTION 5. CONSTRUCTION
OF
DIESEL ENGINE
I . Cylinder head
5-1
Il .Cylinder block , ,
.•.....
, ,
'"
.,
,5-2
UI
.Piston and connecting rod
,.
5-3
IV
.Crankshaft and flywheel 5-5
