Yanmar 4LHA-HTP Operation Manual page 466

apter 3 Fuel Injection Equipment
Fuel Injection Nozzle
F.O. reservoir
Spray angle
26.5-27.5
Dzzie opening
(270-280)
essure
140P355KO
Dzzie type
5-^0.35X140*
4LHA-STE/STZE
igine model
S T P / S T Z P
Nozzle body identification number
The type of nozzle can be determined from the
number inscribed on the outside of the nozzle
body.
Hole type fuel injection nozzles
iple)
Y DLL A - 150
I—Spray angle
— Mounting angle
ol nozzle on
cylinder head
Code A: at angle
No code: not at angle
Type (DLL: semi-long type)
YANMAR
Nozzle valve
Nozzle body
Injection hole
MPa(kgf/cm )
2
23.5-24.5
(240-250)
140P325KO
5-^0.32X140"
4LHA-DTE/DTZE
DTP/DTZP
P 244JO
-Design code
-Nozzlesize Psize
Ssize
Identification number
7-3 Fuel injection nozzle disassembly
NOTE: 1. Disassemble the fuel injection
a clean area as for fuel injection
2. When disassembling more
injection
injection
for cylinder
cylinder
(1) When removing the injection nozzle from
cylinder head, remove the high pressure fuel pipe,
fuel leakage pipe, etc., the injection nozzle retainer
nut, and then the fuel injection nozzle.
Fuel injection nozzle
(2) Put the nozzle in a vise
NOTE: Use the special nozzle holder
type injection
mounting threads are not damaged.
(3) Remove the nozzle nut
Holder
3-2-44
,4LHA Series
nozzle
than one
nozzle, keep the parts for each
nozzle separate (i.e. the
1 must be remounted
1).
Hole type
for the hole
nozzle so that the high pressure
Box spanner
in
pump.
fuel
nozzle
in
the