Yanmar 4LHA-HTP User Manual

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

Yanmar 4LHA-HTP Specifications

General

Brand	Yanmar
Model	4LHA-HTP
Category	Engine
Language	English