Doosan DX60R Shop Manual page 367

Adjusting the fuel injection timing to compensate for the
difference in pump timing index numbers:
Calculation Example
Timing Index Number
Original injection pump=
Replacement injection pump=
Difference=
• If the difference between the timing index numbers is
a positive number, thefuel injection pump mounting
position must be advanced (2, Figure 269) (rotated
away from the engine) as compared to the "standard
mark" (1, Figure 269) by the calculated positive
amount, adjust the fuel injection pump to the
calculated value.
• If the difference between the timing index numbers is
a negative number, the replacement injection pump
must be retarded (3, Figure 269) (rotated toward the
engine) by the calculated negative amount.
• Each mark on the timing sticker represents 0.5°
timing change.
The above calculated difference indicates that the
replacement fuel injection pump is to be installed at +0.5°
(advanced) from the "Standard Mark" (1, Figure 269) on
the timing sticker.
In this case, rotate the top of the fuel injection pump away
from the cylinder block until the mark on the outside upper
mounting boss (1, Figure 270) of the fuel injection pump
aligns with the +0.5° mark on the timing sticker.
Tighten the fuel injection pump mounting nuts to
specification. See "Special Torque Chart" on page -174
6. Reinstall the rear bracket(s) (1, Figure 271) to the fuel
injection pump. Tighten the rear support bolts.
NOTE:
Configuration of the fuel injection pump rear
brackets may vary depending on the model.
Engine
6.8
7.3
+0.5
Figure 269
Figure 270
Figure 271
3
1
O
+0.5
O
+1.0
2
FG008991
SP001693
Page 187