Most accidents involving product operation, maintenance and repair are caused by failure to observe basic safety
rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an
accident occurs. Aperson must be alert to potential hazards. This person should also have the necessary training,
skills and tools to perform these functions properly.
Improper operation, Iubrication, maintenance or repair of this product can be dangerous and could result
in injury or death.
Do not operate or perform any Iubrication, maintenance or repair on this product, until you have read and
understood the operation, Iubrication, maintenance and repair information.
Safety precautions and warnings are provided in this manual and on the product. If these hazard warnings are not
heeded, bodily injury or death could occur to you or other persons.
The hazards are identified by the "Safety Alert Symbol" and followed by a "Signal Word" such as "WARNING" as
shown below.
The meaning of this safety alert symbol is as follows :
Attention! Become Alert! Your Safety is Involved.
The Message that appears under the warning, explaining the hazard, can be either written or pictorially presented.
Operations that may cause product damage are identified by NOTICE labels on the product and in this publication.
DOOSAN cannot anticipate every possible circumstance that might involve a potential hazard. The warnings in this
publication and on the product are therefore not all inclusive. If a tool, procedure, work method or operating
technique not specifically recommended by DOOSAN is used, you must satisfy yourself that it is safe for you and
others. You should also ensure that the product will not be damaged or made unsafe by the operation, Iubrication,
maintenance or repair procedures you choose.
The information, specifications, and illustrations in this publication are on the basis of information available at the
time it was written. The specifications, torques, pressures, measurements, adjustments, illustrations, and other
items can change at any time. These changes can affect the service given to the product.
Obtain the complete and most current information before starting any job. DOOSAN dealers have the most current
information available.
1 of 76
Index
Air Cleaner Assembly ...........................................24
Air Cleaner Elements.............................................25
Air Compressor (if equipped).................................72
16. Put hydraulic filter assembly (10) in position on
the frame. Install bolts (9) and washers.
IEED004P
17. Install tube (8) to the air compressor (if
equipped).
IEED006P
IEED003P
15. Connect battery cable(11) to the starting motor.
18. Connect wiring harness (7) to the fuel sender.
19. Connect two fuel hoses (6) and tighten the hose
clamp.
DE08TS Diesel EngineDisassembly and Assembly
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Electric Starting Motor
1
2
4
3
5
4
2
3
1
WARNING
Remove Electric Starting Motor
A61564 - 02
IEED002P
20. Put the coolant reservoir with bracket (5) in
position on the frame. Install bolts (4) and
washers that hold coolant reservoir (5).
IEED001P
21. Put bonnet assembly (3) in position on the frame.
Install the bolts and washers. Tighten the bolts to
a torque of
200 N..m (150 lb..ft).
Disconnect the battery before the starting motor
is removed
IEED018P
1.
Put identification on the starting motor and
solenoid wires. Disconnect wirings (1) and battery
cable (2).
22. Install the screws and washers that hold circuit
breaker (2).
23. Clear engine harness assembly (1).
24. Fill the cooling system. See the Maintenance
Guide for the correct level.
End By :
a. Install universal joint.
b. Install air cleaner.
c. Install hood.
d. Install floorplate.
e. Install overhead guard.
IEED019P
2. Remove mounting nuts (3) and then remove
starting motor (4) from the lift truck.
DE08TS Diesel EngineDisassembly and Assembly
11 of 76
Install Electric Starting Motor
1
54653
2
6
4
3
1
2
A61564 - 03
IEED019P
Alternator
Remove Alternator B31018 - 02
1. Put starting motor (4) in position on the flywheel
housing and install nuts (3) that hold it.
IEED018P
2. Connect wirings (2) to the starting motor and
solenoid. Connect battery positive cable (1).
IEED020P
1. Put identification on all wires (1) and the
disconnect them from alternator (6).
2. Disconnect ground cable (2) from alternator (6).
IEED021P
3. Loosen nuts (4) and then remove belt (3) from the
alternator.
4. Remove bolts (5) from the alternator’s bracket to
remove alternator (6).
DE08TS Diesel EngineDisassembly and Assembly
12 of 76
Install Alternator B31018 - 03
1
6
5
3
4
1
2
6
2
546
5
3
IEED021P
1. Put alternator (6) in position on its bracket and
install bolts (5) that hold it.
2. Install fan belt (3) on the alternator and tighten nuts
(4).
Fuel Injection Pump
Remove Fuel Injection Pump
A25663 - 02
Start By :
a. Remove air compressor (if equipped).
b. Remove intake manifold.
IEED020P
3. Connect all wires (1) to their respective positions.
4. Connect ground cable (2) to alternator (6).
IEED022P
1. Remove two bolts (1) and washers.
2. Remove bolt (2), washers, spacer (3) and lifting
bracket (4).
IEED166P
3. Remove bolts (5) and washers that hold the
tension adjusting bracket on the timing gear case.
4. Remove the idle pulley and V-belt tension
adjusting bracket assembly (6) and gasket.
Discard the gasket.
DE08TS Diesel EngineDisassembly and Assembly
13 of 76
IEED023P
12
8
7
9
1414141513
10
11
9
IEED118P
5. Remove bolts (7), washers and cover (8).
IEED024P
6. Make an alignment of the timing marks on fuel
injection pump gear (9) and the idle gear or put a
mark of identification on the gears for correct
installation.
8. Remove nut (11) and injection pump coupling and
gear (9) from the injection pump.
IEED025P
9. Disconnect accel rod (12) and engine stop cable
(13).
IEED026P
IEED117P
10. Disconnect five hoses (14) and tubes (15) from
7. Remove nut (10) from the injection pump coupling.
DE08TS Diesel EngineDisassembly and Assembly
14 of 76
the injection pump.
17
IEED027P
16
16
18
17
9
11. Remove four nuts (16) and washers that hold the
injection pump in place. Remove the gasket and
discard it.
Install Fuel Injection Pump
A25663 - 03
IEED028P
1. Install the new gasket in position on the timing
gear case. Put fuel injection pump (17) in position
on the timing gear case.
IEED028P
12. Support injection pump (17). Remove two bolts
(18) and washers that hold injection pump (17) on
the block. Remove injection pump (17).
IEED024P
2. Make sure the timing marks or the marks that were
put on the fuel injection pump gear (9) and the idle
gear are in alignment.
IEED027P
3. Install four nuts (16) and washers that hold the fuel
injection pump on the timing gear case.
DE08TS Diesel EngineDisassembly and Assembly
15 of 76
141414
15
12
13
18
8
7
10
IEED118P
11
9
IEED028P
4. Put the fuel injection pump drive coupling and gear
(9) in position. Make an alignment of the key and
the groove (slot) in the coupling.
5. Install nut (11) that hold the injection pump drive
coupling and gear (9) in place. Tighten nut (11) to
a torque of
IEED117P
130 Nm (96 lbft).
6. Install nut (10) into the injection pump coupling.
8. Install bolts (18) and washers that hold the
injection pump on the block.
IEED026P
9. Connect three hoses (14) and tube (15) to the
injection pump.
IEED025P
10. Connect accel cable (12) and engine stop cable
IEED023P
(13) to the injection pump.
7. Install cover (8), bolts (7) and washers.
DE08TS Diesel EngineDisassembly and Assembly
16 of 76
1
1
IEED166P
5
6
3
4
1
2
11. Install the new gasket on the timing gear case.
12. Put the idle pulley and V-belt tension adjusting
bracket assembly (6) on the timing gear case and
install bolts (5) and washers.
Fuel Injection Lines
Remove Fuel Injection Lines
A23525 - 02
IEED029P
1. Disconnect fuel injection lines (1) from the fuel
injection nozzle assemblies and the fuel injection
pump.
IEED022P
13. Install lifting bracket (4), spacer (3), washers and
bolts (2) on the block.
14. Install two bolts (1) and washers.
End By :
a. Install air compressor (if equipped).
b. Install intake manifold.
Install Fuel Injection Lines
A23525 - 03
IEED029P
2. Connect fuel injection lines (1) to the fuel injection
pump and the fuel injection nozzle assemblies.
Tighten the fuel line nuts toa torque of
16 to20 Nm (12 to 15 lbft).
DE08TS Diesel EngineDisassembly and Assembly
17 of 76
Fuel Filter
2
1
3
4
1
2
2
1
Remove Fuel Filter A21357SE - 02
Fuel Strainer
Remove & Install Fuel Strainer
A21357PR - 01
IEED030P
1. Loosen bolt (1). Remove bowl (2).
2. Remove fuel filter.
Install Fuel Filter A21357SE - 03
IEED030P
1. Install a new gasket in the filter bowl.
IEED031P
1. Remove bolt (1) and washers and disconnect fuel
line (2) that connected the fuel tank.
2. Remove bolt (3), washers and fuel strainer (4) from
the injection pump.
3. Install fuel strainer (4) in reverse order of removal.
2. Put a new fuel filter element in position.
3. Put filter bowl (2) in position and tighten bolt (1)
that holds the bowl in position.
DE08TS Diesel EngineDisassembly and Assembly
18 of 76
Fuel Pump
2
1
2
1
3
4
3
4
Remove Fuel Pump A21663 - 02
IEED032P
1. Disconnect fuel inlet line (1) and fuel outlet line (2)
from the fuel pump.
Install Fuel Pump A21663 - 03
IEED033P
1. Put fuel pump (4) in position on the engine block
with nuts (3) that hold it.
IEED033P
2. Remove three nuts (3) that hold fuel pump (4) to
the injection pump. Remove fuel pump (4).
IEED032P
2. Connect fuel outlet line (2) and fuel inlet line (1) to
the fuel pump.
DE08TS Diesel EngineDisassembly and Assembly
19 of 76
Fuel Injection Nozzle
1
1
2
3
2
3
Assembly
Remove Fuel Injection Nozzle
Assembly A28999 - 02
IECD029P
1. Disconnect fuel lines (1) from the fuel injection
nozzles.