Doosan P158LE -III, Operation & Maintenance Manual

Page: 95 / 165

Engine Reassembly - 92 -
3.3.23. Fuel injection pump
z
Turn the crank shaft so as to let the
cylinder No.6 for P158LE, PU158TI,
P222LE, PU222TI engines and the
cylinder No.7 for P180LE, PU180TI
come to the overlap TDC (Top Dead
Center).
z
Rotate the crankshaft to reverse about
30
°
(in order to remove a backlash),
and then rotate it to engine rotating
direction to set the fuel injection timing
angle.
z
Coat the O-ring with grease and insert it at the lower part of fuel injection pump. (Be careful O-ring
not to be removed).
z
Prior to install the fuel pump drive gear, fit the rubber gasket first.
z
Tighten temporarily the fuel injection pump drive gear with aligning the pointer on drive gear with
injection pump pointer.
z
Fit the injection pump in the appropriate
position using a special tool.
(Special tool no. : EF120-189).
z
After fixing the jig hole on the limit cap
of the injection pump rotate the jig
counterclockwise and align the jig pin to
the machined corner of the cylinder
block, then assemble the injection
pump.
z
After completing the preparation for
injection pump assembling, install the
injection pump and tighten the bolts in
the zigzag method.
z
After assembling the injection pump, find out whether the injection pump pointer and drive gear’s
pointer is aligned, and if aligned, tighten the fixing bolts that were temporarily tightened. However, if
not aligned, loosen the fixing bolts and turn the fuel pump so as to align the pointers then tighten
the fixing bolts.
EFM2071I
EB2O3008
EFM2071I