Wacker Neuson 803 Dualpower, Service Manual

Page: 121 / 196

SHB 803 en – Edition 2.4 * 803s410.fm
4-25
Engine
Marks (standard specification) on the flywheel:
☞ Turn until mark G on the ring gear for cylinder 1 are visible and at the same level as
mark F on the flywheel housing.
➥
Rated injection point 16° before top dead center (+/ − 1°).
☞ Mark the (rated) injection point on the flywheel housing and ring gear.
Measurement:
☞ Loosen and push all high-pressure fuel injection lines to one side.
➥
Opening A of injection pump must be visible.
☞
Turn fuel cock B to flow, see Fig. 32
Notice!
Fuel is pumped to the cylinder only every second turn of the crankshaft; for this
reason it may be necessary to turn the crankshaft twice.
☞
An auxiliary means (fuel injection line with a transparent pipe) can be installed on the
fuel injection line for precise observation. – see
Fig. 33
➥ This auxiliary means is not essential.
☞
Position a spanner on the screw of the pulley (on the crankshaft).
☞ Slowly turn clockwise until fuel is discharged from the opening of injection pump A .
Fig. 29: Marks on flywheel
C
D
B
A
E
Pos. Designation
A
Top dead center with corresponding cylinder number
B
15° before top dead center
C
20° before top dead center
D
25° before top dead center
E
Direction of rotation
Fig. 30: Mark before top dead center
G
F
Fig. 31: Opening on fuel pump
A
Fig. 32: Turning the fuel cock to flow
B