Daedong 3A165D Bedienungsanleitung
CHAPTER 1. GENERAL
1.1 APPEARANCE
1.2 SPECIFICATIONS
1.3 PERFORMANCE CURVE
1.4 DIMENSIONS
1.5 GENERAL WARNING
CHAPTER 2. STRUCTURE AND FUNCTION
2.1 BODY
A. CYLINDER HEAD
B. CYLINDER BLOCK
C. CRANKSHAFT
D. PISTON AND PISTON RINGS
E. CONNECTING ROD
F. CAMSHAFT
G. FUEL CAMSHAFT
H. ROCKER ARM ASSEMBLY
I. INLET AND EXHAUST VALVES
J. TIMING GEARS
K. FLYWHEEL
2.2 LUBRICATING SYSTEM
A. FLOW OF LUBRICATING OIL
B. OIL PUMP
C. OIL FILTER AND RELIEF VALVE
D. OIL PRESSURE SWITCH
2.3 COOLING SYSTEM
A. FLOW OF COOLING WATER
B. WATER PUMP
C. THERMOSTAT
D. RADIATOR
E. RADIATOR CAP
2.4 FUEL SYSTEM
A. FLOW OF FUEL
B. FUEL FILTER
C. FUEL FEED PUMP
D. FUEL INJECTION PUMP
E. FUEL INJECTION NOZZLE
F. GOVERNOR AND IDLE COMPENSATING
PART 2 ENGINE
2.5 INLET AND EXHAUST SYSTEM
A. FLOW OF INLET AIR AND EXHAUST GAS
B. AIR CLEANER
C. MUFFLER
2.6 ELECTRICAL SYSTEM
A. STARTER
B. CHARGING SYSTEM
CHAPTER 3. DISASSEMBLING AND SERVICING
3.1 TROUBLESHOOTING
3.2 SERVICING SPECIFICATIONS
A. ENGINE BODY
B. LUBRICATING SYSTEM
C. COOLING SYSTEM
D. FUEL SYSTEM
E. TIGHTENING TORQUES
3.3 CHECKING, DISASSEMBLING AND SERVICING
A. ENGINE DISASSEMBLED VIEW
B. EXTERNAL COMPONENTS
C. ENGINE BODY
D. LUBRICATING SYSTEM
E. COOLING SYSTEM
F. FUEL SYSTEM
G. ELECTRICAL SYSTEM
This Workshop Manual has been prepared to provide servicing personnel with information on the
mechanism, service and maintenance of DAEDONG Diesel engine A series. It consists of three
parts, “GENERAL”, “STRUCTURE AND FUNCTION”, “DISASSEMBLING AND SERVICING” as
following.
CHAPTER 1. GENERAL
GENERAL covers appearance and dimension, specification and precaution of the engine.
CHAPTER 2. STRUCTURE AND FUNCTION
STRUCTURE AND FUNCTION illustrates about structure and mechanism of each part with figure
and description.
CHAPTER 3. DISASSEMBLING AND SERVICING
DISASSEMBLING AND SERVICING provides information about disassembling and servicing
procedures, checking servicing instruction with illustration, service direction.
TROUBLESHOOTING chart with reference parts given is at the beginning of the section, it helps
you find out the cause of malfunction easily.
All information, illustration and specifications contained in this manual are based on the latest
production information available at the time of publication. The right is reserved to make changes
in all information at any time without notice.
FOREWORD ENGINE
1. Warranty
The DAEDONG A series engines are vertical, water-cooled, 4-cycle, three or four cylinders diesel
engines, they concentrate DAEDONG’s foremost technologies. With vortex combustion chamber,
Bosch K type fuel injection pump, well-balanced designs, they feature greater power, low fuel
consumption, little vibration and limited noise, low emission.
1. GENERAL
1.1 APPEARANCE
4A200B
3A165D
ENGINE
ENGINE
* NOTE : Change of parts are not subject to advance notice.
MODEL 3A165D 4A200B
Type
Vertical, water-cooled, 4-cycle diesel engine Vertical, water-cooled, 4-cycle diesel engine
Number of cylinder 3 4
87*92.4 83*92.4
Bore and stroke mm (in.) (3.43*3.64) (3.27*3.64)
Total 1,647 1,999
displacement (100.5) (120.0)
L (in3.)
Combustion spherical type spherical type
Chamber
POWER(GROSS) 35/2700 40/2700
HP/rpm (26.1/2700) (29.8/2700)
(kW.rpm)
Maximum idling 2900~2950 2850~2950
speed rpm
minimum 800~900 800~900
idling speed rpm
Order of firing 1-2-3 1-3-4-2
Direction of rotation
Counterclockwise (viewed from flywheel side) Counterclockwise (viewed from flywheel side)
Injection pump Bosch K TYPE mini pump Bosch K TYPE mini pump
Injection pressure
140~150kgf/
cm2
(13.73~14.71MPa, 1991~2133psi) 140~150kgf/
cm2
(13.73~14.71MPa, 1991~2133psi)
Injection timing 18o18o
(Before T.D.C)
Compression 22:1 22:1
Ratio
Fuel Diesel fuel Diesel fuel
Lubricant Engine oil SAE 15W-40 Engine oil SAE 15W-40
Dimensions mm 722.3*488.1*729.9 817.3*488.1*735.8
(lenght*width*height) (in.) (28.4*19.2*28.7) (32.2*19.2*29.0)
Dry weight 179 183
kg (lbs.) (395) (403)
1.2 SPECIFICATIONS
ENGINE
1.3. PERFORMANCE CURVE
ENGINE
SAMPLE\TDSPEC.
A B C D E F G H I J K
3A165D(mm) 602.3 722.3 280.0 400.0 488.1 25.16 729.9 259.7 240.0 315.0 95.0
(in.) 23.71 28.44 11.02 15.75 19.22 9.91 28.74 10.00 9.45 12.40 3.74
4A200B(mm) 697.3 817.3 280.0 400.0 488.1 251.6 735.8 259.7 240.0 321.0 92.0
(in.) 27.45 32.18 11.02 15.75 19.22 9.91 28.97 10.22 9.45 12.64 3.62
1.4 DIMENSION
ENGINE
• When disassembling, arrange each part on a clean place. Do not mix them up. Replace bolts and
nuts where they were.
• When servicing voltaged places or connecting instruments to electrical equipment, first
disconnect battery negative terminal.
• Replace gaskets or O-rings with new ones when reassembling, and apply grease on a O-ring
and the oil seal when reassembling.
• When exchanging parts, use DAEDONG genuine parts to maintain engine performance and
safety.
• To prevent oil and water leakage, apply non-drying adhesive to the gaskets according to this
manual before reassembling.
• When hoisting up the engine, use the hook provided on the cylinder head.
• When installing up the engine, use the hook provided on the cylinder head.
• When installing external cir-clips or internal cir-clips, direct corner end to the non-loosening
direction.
1.5. GENERAL WARNING
ENGINE
A. CYLINDER HEAD The cylinder head is made of special alloy cast iron
which can resist high temperature and pressure
caused by combustion and inlet, exhaust port is
arranged cross-flow type to get high combustion
efficiency by protecting the suction air from being
heated and expanded by heated exhaust air.
The Daedong vortex type combustion chamber is
designed for high combustion efficiency and
reducing fuel consumption. The glow plug assures
easier than ever engine starts even at (-) 15oC(5oF).
(1) Combustion Chamber
(2) Inlet Port
(3) Exhaust Port
(4) Injection Nozzle
(5) Glow Plug
(6) Cylinder Head
B. CYLINDER BLOCK The engine has a high durability tunnel-type cylinder
block. Furthermore, liner less type, allow effective
cooling, less distortion, and greater wear-resistance
using special material. The noise is reduced to a
minimum because each cylinder had its chamber.
2. STRUCTURE AND FUNCTION
2.1 BODY
2. STRUCTURE AND FUNCTION
ENGINE
The crankshaft is made of forged steel and the
journals, the crankpins and the bearing surface for
the oil seal are induction-hardened to increase wear
resistance. Each crankshaft journal is supported by
the main bearing case (3) having a bearing inside.
The front bearing-crankshaft bearing (1) is a solid
type bushing and rear and intermediate bearings
are a split type. The crankshaft, crankshaft bearings
have oil holes for lubricant flow.
The piston is made of an aluminum alloy which is
temperature and pressure resistant. Three rings
installed in grooves in the piston. The top ring (1) is
a keystone type, which can withstand heavy loads,
and the barrel face on the ring fits well to the cylinder
wall. The second ring (2) is an undercut type, which
prevents the oil from being carried up. The oil ring
(3) has chambered contact faces and an expander
ring, which increase the pressure of the oil ring
aginst the cylinder wall to scrape the oil. The top ring
is plated with hard chrome to increase wear
resistance(The ring of 4A200T engine is special
steel).
The connecting rod (2), which converts the
reciprocating motion of the pistons caused by the
fuel combustion into the rotating motion of the
crankshaft, is made of hard forged steel. The
connecting rod has bearings at both ends. The
small end has a solid type bearing(small end
bushing (2)) and the big end has a split type
bearing(crankpin bearing (3)).
(1) Small End Bushing
(2) Connecting Rod
(3) Crankpin Bearing
C. CRANKSHAFT
D. PISTON AND PISTON RINGS
E. CONNECTING ROD
(1) Top ring (2) Second ring (3) Oil Ring
Dieses Handbuch passt für folgende Modelle
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