The document provides technical specifications and descriptions for various engine components of a Wheel Loader L330E, including: - The engine has 6 cylinders with a displacement of 16.12 liters. It uses direct injection and is turbocharged. - The cooling system uses two separate coolant pumps to cool different systems. Fan speed is controlled based on temperature sensors. - The cylinder head has four valves per cylinder and guides/seats can be replaced. The injector is above the piston crown. - The cylinder block is cast iron with wet replaceable liners. It has replaceable bearings and reinforced caps. - Pistons have three rings and piston cooling channels. The combustion chamber is

1. Service Information
Document Title: Function Group: Information Type: Date:
General description 200 Service Information 2014/3/26
Profile:
WLO, L330E [GB]
General description
Wheel loader L330E is equipped with an engine of type designation D16B.
The engine is a six-cylinder, four-stroke, direct-injected turbocharged diesel equipped with an intercooler and EMS (Engine
Management System). The cylinder bore is 144 mm (5.67 in) and stroke is 165 mm (6.50 in), which provide a total stroke
volume of 16.12 dm3 (lit) (983.7 cubic in).
The engine management system comprises the E-ECU (Engine Electronic Control Unit), sensors and actuators. The purpose
of the system is to calculate and continuously control the amount of fuel injected during different operating conditions. This
leads to more efficient combustion which results in reduced emissions and low fuel consumption. Information regarding
temperature, pressure and rpm is sent in the form of electric impulses from sensors and other components to the engine
control unit which then calculates the correct amount of fuel and sends signals to the injection pump. The EMS is a part of
the vehicle control unit (V-ECU). The injection angle is mechanically/hydraulically controlled.
The cooling system comprises two separate coolant pumps. The larger pump, which is mounted in the timing gear, cools the
engine, torque converter and brakes. (The torque converter and brakes are a part of the transmission circuits.)
The smaller pump cools the hydraulic oil using a separate circuit.
The cooling fan, which has an axial piston motor, is located behind the radiator and is driven hydrostatically with a variable
piston pump, Pump 3 (P3).
Fan speed is adjusted by the trolley ECU (V-ECU) which receives temperature information in the following systems:




Coolant temperature from the radiator
Diesel engine coolant temperature
Transmission oil temperature
Hydraulic oil temperature
The cooling system is based on a concept designed to cool the engine, transmission, hydraulics and brakes and in which
brake cooling is integrated in the transmission oil cooling. System cooling is determined by cooling fan speed.
The engine designation and serial number are stamped on the top side of the cylinder block near cylinder number 1.

2. Service Information
Document Title: Function Group: Information Type: Date:
Function check, engine 200 Service Information 2014/3/26
Profile:
WLO, L330E [GB]
Function check, engine
Test possible causes
1 Initial check:





Liquid levels
Control lamps/warning lamps
Information instruments
Battery voltage
Fuses (whole, correct current)
2 Separate systems:
 If two or more systems and/or circuits function together.
NOTE!
Check the system circuits individually.
3 If the machine exhibits poor rimpull, the fault may have occurred in the engine, torque converter, transmission or
brakes.
Check stall speed.


If the engine stall speed is within the indicated values, the fault can be traced in the transmission, torque converter
or brakes.
If the engine stall speed is low, check according to step 4.
4 Checking the engine















Check the oil and coolant for discoloration, odour, etc.
Check the exhaust pipes (internal residue)
Checking the air filter and turbo.
The engine misfires (imbalance-high noise level)
Checking for overpressure in the expansion tank.
Crankcase ventilation (overpressure-clogged)
Dipstick, remove (overpressure)
Exhaust smoke (colour-contaminants, odour).
Bleed the fuel system.
Check rpm.
Check feed pressure (before and after the filter).
Perform a compression test (repeat with oil if fault is discovered).
Check the injectors.
Check the pilot injection.
Check the diesel fuel.

3. Service Information
Document Title: Function Group: Information Type: Date:
Engine, removing 210 Service Information 2014/3/26
Profile:
WLO, L330E [GB]
Engine, removing
Op nbr 21070
999 8547 Lifting yoke
Lifting eye 3/4"UNC
1. Park the machine in service position, see .
191 Safety rules when servicing
2. Cut the main current.
Figure 1
Battery disconnect switch, location
3. WARNING
Risk of burns when removing the header tank cap because of excess pressure in the cooling system.
Drain the coolant and engine oil.
Use the drain hoses stored in the right-hand battery box.
Coolant volume:approx. 66 litres (17.4 US gal) (approx. 3 litres (0.8 US gal) remain in the cylinder block)
Engine oil volume: approx. 49 litres (12.9 US gal)

4. Figure 2
1.
2.
Draining the engine oil
Draining the coolant
4. Remove the engine hood, see .
821 Engine hood, removing
5. Remove the cooling water hose on the cooling water pump and the cooling water hose between the radiator and
thermostat housing.
6. Remove the fuel hoses from the fuel filter and fuel pump.
Figure 3
Fuel hoses to the fuel filter and fuel pump
7. Detach the connectors, clamps and cables on the engine.
8. Remove the air shroud over the alternator. Detach the power cable, ground cable and connector from the
alternator.
9. WARNING
Do not disconnect or loosen connections for the air conditioning unit (AC). Risk of gas leakage.

5. Remove the drive belt and detach the AC compressor from its mounting. Carefully bind the AC compressor.
Figure 4
Bound AC compressor
10. Lower the shield under the tank and loosen the drain hose located at the back of the engine oil drain coupling.
11. Remove the air shroud at the condenser.
Weight: 35 kg (77 lbs.)
Figure 5
Air shroud at the condenser
12. Detach the connector hose between the flywheel housing and torque converter.
Figure 6
1. Connector hose
13. Secure the torque converter with 2 6m (19.7 ft) slings, 2 3m (9.8 ft) slings and 2 ratchet blocks with lifting eyes (750
kg) (1653 lbs.).

6. Figure 7
Securing the torque converter
14. Secure the torque converter to the rear axle attachment with a spacer, approx. 55 mm (2.17 in). The spacer should
be placed between the torque converter pump and axle attachment.
15. Detach the engine from the torque converter.
16. Connect the lifting sling and lifting device to the engine.
Figure 8
17. Remove the front engine mountings.
18. Loosen the cable on the oil pan sensor. Remove the bolts for the rear engine mounting pad. Raise the engine high
enough to remove the engine mounting.
NOTE!
The stud bolts should also be removed.

7. Figure 9
1.
2.
Oil pan sensor
Stud bolt
19. Remove the bolts between the torque converter and the engine.
20. Loosen the engine from the torque converter and raise approx. 450 mm (17.7 in).
NOTE!
Mind the oil level sensor on the oil pan.
21. Loosen the engine oil drain hose from the frame on the right-hand side of the machine near the oil filter (rubber
clamp).
22. Lift out the engine.
Engine weight with lifting sling: approx. 1525 kg (3362 lbs.)
Figure 10
23. If replacing the engine, transfer the required components to the new engine.
NOTE!
Never transfer a component that could cause a malfunction.

8. Service Information
Document Title: Function Group: Information Type: Date:
Engine, installing 210 Service Information 2014/3/26
Profile:
WLO, L330E [GB]
Engine, installing
Op nbr 21072
999 8547 Lifting yoke
Lifting eye 3/4"UNC
1. Connect the lifting sling and lifting device to the engine.
Engine weight: 1525 kg (3362 lbs.)
Figure 1
Lifting sling with lifting chains
2. Fit a new O-ring and apply new sealant to the torque converter.
3. Lift in and align the engine and torque converter. Fit the retaining bolts and secure the torque converter to the
engine.
Tightening torque: 60 Nm(44 lbf ft)
NOTE!
Mind the oil level sensor when lowering the engine.
Figure 2

9. 4. Fit the oil hose at the frame on the right-hand side of the machine near the engine oil filter.
5. Fit the front engine mountings on the left-hand and right-hand sides of the engine near the flywheel housing.
Tightening torque to the engine: 220 Nm (162 lbf ft)
Tightening torque to the frame: 350 Nm (258 lbf ft)
6. Detach the ratchet blocks and slings, remove the spacers under the torque converter pump.
Figure 3
Ratchet block with sling
7. Fit the stud bolt for the rear engine mounting.
8. Raise the engine high enough to tighten the rear engine mounting to the engine.
Connect the cable to the oil level sensor on the oil pan.
NOTE!
Avoid raising the engine too high. There is a risk of damage to the pump suction pipes.

10. Figure 4
1. Stud bolt
9. Lower the engine and fit the rear engine mounting in the frame.
10. Remove the lifting sling and lifting device from the engine.
Figure 5
Lifting sling with lifting chains
11. Fit the connector hose between the flywheel housing and torque converter.

11. Figure 6
1. Connector hose
12. Fit the drain hose to the back of the engine oil drain coupling. Lift and tighten the shields.
13. Fit the air shroud at the condenser.
Weight: 35 kg (77 lbs.)
Figure 7
14. Fit the charge air pipes between the engine and intercooler.
15. Fit the alternator loosely. Connect the power cable, ground cable and connector to the alternator.
16. Fit the AC compressor and attach the connector.
Figure 8
1.
2.
Connector
AC compressor
17. Couple the connectors, clamps and cables on the engine.
18. Connect the fuel lines to the fuel filter and fuel pump.

12. Figure 9
19. Connect the cooling water hose to the cooling water pump. Fit the cooling water hose between the radiator and
thermostat housing.
20. Fit the alternator and AC compressor drive belts.
Apply tension to the drive belt as follows:


Tighten the adjusting screw until the belt can only be depressed8 mm (0.31 in). Depress with a force of
25-30 Nm (18.4-22.1 lbf ft).
Tighten the alternator retaining bolts.
Figure 10
A. Adjusting screw

13. 21. Fit the coolant pump drive belt.
Fit the drive belt guards.
22. Fit the engine hood, see .
821 Engine hood, installing
23. Fill with oil and coolant.
24. Bleed the fuel system, see .
233 Fuel system, bleeding
25. Switch on the main current.
Figure 11
Battery disconnect switch, location
26. Start the engine and run at increased idling speed for 10 minutes in order to release any remaining air from the fuel
system. Check for leaks. Check oil and coolant levels.

14. Service Information
Document Title: Function Group: Information Type: Date:
Cylinder head, description 211 Service Information 2014/3/26
Profile:
WLO, L330E [GB]
Cylinder head, description
The engine has separate cylinder heads with one for each cylinder. The heads are made from cast iron and have replaceable
guides and seats for the valves. The cylinder head has four valves per cylinder (two inlet and two exhaust valves).
The inlet and exhaust ducts open out on either side of the cylinder head.
The injector is positioned vertically directly above the centre of the piston crown in a thin replaceable copper sleeve which is
in direct contact with the circulating coolant.
Figure 1
Cylinder head

15. Service Information
Document Title: Function Group: Information Type: Date:
Cylinder block, description 212 Service Information 2014/3/26
Profile:
WLO, L330E [GB]
Cylinder block, description
The cast iron cylinder block is cast in one piece and is equipped with "wet", replaceable cylinder linings.
Characteristic for "wet" cylinder liners is that they are in direct contact with the coolant.
The camshaft bearing bushings are replaceable.
The crankshaft is carried in the cylinder block with replaceable main bearing shells. The centre main bearing position is also
equipped with a thrust bearing.
The main bearing caps are manufactured with spheroidal graphite cast iron. Besides their normal bolted joints, the caps are
attached to the sides of the cylinder block with reinforcing plates which contribute to reduced noise levels. Additional noise
level reduction is provided by side panels made with laminated material located on both sides of the block. These are bolted
in place with a bead of silicone between the plate and the block.
Figure 1
Cylinder block

16. Service Information
Document Title: Function Group: Information Type: Date:
Cylinder block, description 212 Service Information 2014/3/26
Profile:
WLO, L330E [GB]
Cylinder block, description
The cast iron cylinder block is cast in one piece and is equipped with "wet", replaceable cylinder linings.
Characteristic for "wet" cylinder liners is that they are in direct contact with the coolant.
The camshaft bearing bushings are replaceable.
The crankshaft is carried in the cylinder block with replaceable main bearing shells. The centre main bearing position is also
equipped with a thrust bearing.
The main bearing caps are manufactured with spheroidal graphite cast iron. Besides their normal bolted joints, the caps are
attached to the sides of the cylinder block with reinforcing plates which contribute to reduced noise levels. Additional noise
level reduction is provided by side panels made with laminated material located on both sides of the block. These are bolted
in place with a bead of silicone between the plate and the block.
Figure 1
Cylinder block

17. Service Information
Document Title: Function Group: Information Type: Date:
Pistons, description 213 Service Information 2014/3/26
Profile:
WLO, L330E [GB]
Pistons, description
The pistons are made of an aluminium alloy and have three piston rings. The two upper rings (1 and 2) are compression
rings while the lower one (3) is an oil ring.
When fit, the marking on the compression ring (letter or dot) should face up.
The pistons are equipped with piston cooling. Oil is sprayed from a nozzle, which is housed in the cylinder block, into the
opening of the piston cooling channel (4) on the bottom of the piston.
The combustion chambers of the engine are located to the top of each piston. This formation produces an effective blend of
fuel and air, resulting in efficient combustion.
Figure 1
1.
2.
3.
4.
Upper compression ring
Lower compression ring
Oil ring
Piston cooling channel

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19. Service Information
Document Title: Function Group: Information Type: Date:
Seal configuration (cylinder
block-cylinder head-
cylinder liner), description
213 Service Information 2014/3/26
Profile:
WLO, L330E [GB]
Seal configuration (cylinder block-cylinder head-cylinder liner),
description
The seal configuration between the cylinder head and cylinder block is direct contact, i.e. there is no intermediate gasket.
Thus, the upper sealing surface of the cylinder liner seals directly against the cylinder head (1).
Figure 1
1.
2.
3.
4.
5.
Cylinder liner's upper sealing surface
Flame lip
Sealing ring
Sealing ring
Sealing rings
The cylinder liner has a flame lip (2).
A sealing ring (3) around the outer edge of the cylinder liner collar provides protection against external contaminants.
As a seal against coolant, there is one O-ring under the cylinder liner collar (4) and three additional O-rings (5) farther down
along the cylinder liner.