Yanmar 4D92E, 4D94LE, 4D98E Service Manual
SM197T
SERVICE MANUAL
4D94(L)E / 4D98E DIESEL ENGINES
Federal Environmental Protection Agency (EPA) Emission Control Compliant
BX20 S/N 580001A~ 4D94(L)E EPA TIER 2 400/500/600PD-14
BX50 S/N 200001A - 215882A 4D94(L)E EPA TIER 2
400/500/550/600/650/700PD-16
BX50 S/N 215883A~ 4D98E EPA TIER 3
4D94E-BE4
4D94(L)E
4D98E
WARNING
Read and observe all warnings on this unit
before operating it.
DO NOT operate this equipment unless all
factory installed guards and shields are
properly secured in place.
REVISED: FEBRUARY 2009
1.
GENERAL
1-1
Engine name
Engine specification class
Type
Combustion chamber
Number
Cylinder bore x stroke
Specifications
of
cylinders
-
-
-
-
-
mmxmm
4D92E 4D94LE 4D98E
For standard forklift truck
Vertical, in-line, 4-cycle, water-cooled diesel engine
Swirl chamber type
4
92 x 100
94 x
110
98 x
Displacement I 2.659 3.053 3.318
Revolving speed rpm 2,450 2,450 2,400
Rated output
Output kW {HP} 33.8 {45.3} 44.1 {59.1} 48.9 {65'?}
Fuel injection timing
(ATD
Fuel injection pressure
Ignition order
Power take off
Direction
of
rotation
.C.) deg 4
MPa
{kgf/cm'}
-
-
-
1-3-4-2
(No.1 cylinder
Counterclockwise (viewed from flywheel)
3-13
12.
{125
-135}
Flywheel
.3
on
flywheel side)
6
110
Cooling system
Lubrication system
Starting system
Applicable fuel
Applicable lubricant
-
-
-
-
-
Battery capacity V-AH
Lubricant capacity
(oil pan)
Total
Effective I 2
I 7.5
Forced lubrication with trochoid pump
Diesel oil-ISO 8217 DMA,
API grade class
Radiator
Electric
(cetane No. 45 min.)
12-64
(5HR) or above
Cooling water capacity (engine only) I 4.2
Overall length
Engine dimensions Overall width
Overall height
Dry engine weight
mm
mm
mm
kg
706 (oil pan - rocker cover upper surface)
700 (fan - flywheel)
508 (fuel filter - alternator)
225
BS
CC
2869
or higher
A1
or A2
1-2
4D92E,4D94LE,4D98E
1. GENERAL
1-2 Fuel oil, lubricating
Use proper fuel oil, lubricating oil and cooling water and change them according the Operation and Maintenance Manual.
oil
and cooling water
4D92E,4D94LE,4D98E
1-3
1.
GENERAL
1-3 Engine performance curve
4D92E [Applicable machine: FD10/15/18-20]
Rated horsepower: 33.8 kW {45.3 HP}/2,450
Maximum torque: 147 Nm {15 kgfom}/1,600
Torque
rpm
rpm
(Net)
(Net)
!
100
90
147Nm{15kg!.
;;:
0..
:I:
70
rfJ
0..
-""
100
90
mJ/160orpmj
--...
~
60
50
40
30
20
10
0
E
E
'"
z
-""
600
500
Q)
400
=>
0-
0
300
I-
200
100
0
60
80
70
60
=>
"-
50
=>
0
40
30
20
10
50
40
30
20
10
80
70
60
50
40
30
20
10
33. 8kW{45
.
4H~/2450rpm
'\.
l..---
~
\
\~
\)~
.....-
/
/
----
/
Fuel
800 1.000 1.200 1.400 1.600 1.800 2,000 2,200 2,400 2,600
Engine
speed(rpm)
---
1\
I \
consump~J
\
\
rfJ
3:
0..
-""
" " "
'" '" '"
290
210
280
200
270
260
190
250
180
HJZ06160
210
200
190
0..
:I:
c
0
"-
E
=>
C/)
c
0
u
Q)
=>
LL
1-4
4D92E,4D94LE,4D98E
4D94LE [Applicable machine: FD20/25/30-16, FD20N/25N/30N-16]
Rated horsepower: 44 .1 kW {59.1 HP}/2,450
Maximum torque: 178.5
178.
Nm
5Nm{18.
{18.2
kgfom}/1
2kgf. m}/1500rpm
rpm
,500
\
(Net)
rpm
(Net)
Torque
-.....
~
60
50
40
30
20
10
1.
GENERAL
E
E
z
-'"'
'"
600
500
OJ
400
::J
0-
0
300
I-
200
100
0..
:I:
100
90
80
70
60
::J
0.
50
::J
0
40
30
20
10
0 0 0
70
60
50
40
30
20
10
en
3::
0..
-'"'
100
90
80
70
60
50
40
30
20
10
V
./
V
V
/'"
..-
Fuel
'---..
800
1.000 1.200 1.400 1.600 1.800 2.000 2.200 2.400 2.600
44kW{59HP}/2450rpm
V
\J~
consumpt
-r
/
i
~
V
~
"""-!I..
'\
l-/
/
1\
\
210
\
200
190
180
en
0..
-'"'
'"
"'- "'- "'-
'" '" '"
290
210
280
200
270
260
190
250
0..
:I:
c
0
0.
E
::J
rn
c
0
0
OJ
::J
LL
4D92E,4D94LE,4D98E
Engine
speed
(rpm)
HJZ06161
1-5
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