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The F5H Tier 4A
Common Rail Engine 2013
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CNH America LLC, Racine, WI 53404 U.S.A.
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F5H_Tier_4A_Common_Rail_Engine_print_cover_4-3-13.indd 1 4/19/2013 12:09:35 PM

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The F5H Tier 4A Common Rail Engine
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TABLE OF CONTENTS
TECH-COM
The F5H Tier 4A Common Rail Engine
INTRODUCTION 3
EGR/DPF TECHNOLOGY AND THE F5H ENGINE 4
REGENERATION AND MACHINE OPERATION 16
SERVICE, EST FUNCTIONS, AND THE EGR/DPF SYSTEM 24
TECHNICIAN RECOGNITION TEST 34
RELEASES TO DATE 38
OBTAINING PREVIOUS TECH-COMS 39

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Menu. On the Main Menu screen, use the DVD remote to highlight and choose the
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TECH-COM
2
As of January 1, 2012, 75 hp and above machines
INTRODUCTION
must comply with Tier 4A emission standards,
Figure 1.
1998 2002 2008 2011 2014

EPA allowable levels of emissions (PM/NOx).
Figure 1
This affects the following New Holland Construction
models:
• B95C and B110C Loader Backhoes
• U80C Tractor Loader
• L225 and L230 Skid-Steer Loaders (SSL)
• C232 and C238 Compact Track Loaders (CTL)
To meet the EPA standards, these models are

equipped with the FPT F5H engine, which
incorporates an updated cooled Exhaust Gas
Recirculation (EGR) system with a Diesel Particulate
Filter (DPF). The EGR/DPF system combination
recirculates exhaust gas back into the engine and
captures pollutants with the particulate filter.
This Tech-Com will cover:

• EGR/DPF technology and the F5H Tier 4A
engine features and components.
• How DPF technology will affect machine
operation.
• Tier 4A C Series, SSL, and CTL service and
TECH-COM
EST functions used specifically with the EGR/ The information in this Tech-Com was current at the
DPF system. time of publication.
3
EGR AND DPF TECHNOLOGY
EGR/DPF TECHNOLOGY AND THE F5H ENGINE
An EGR/DPF system recirculates exhaust back into
the engine and uses a particulate filter to capture
pollutants.
Figure 2 shows the F5H emission components.
EGR System DPF Filter
HEGO Sensor
Boost Pressure
Modulator
Glow Plug System
Intake Air Valve
Fuel Injection
Figure 2
The EGR/DPF system is actually two separate
systems, Figure 3, used to reduce particulate
matter (PM) and nitrogen oxides (NOx) to meet EPA
Tier 4A emission standards.
• The EGR system is incorporated to reduce • The DPF system is incorporated to capture
NOx formation within the combustion chamber PM in the exhaust stream.
of the engine.
Temperature Sensors
EGR Cooler
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Differential Pressure
Nox Reduction PM Reduction Monitoring Ports
Figure 3
4
Figure 4 shows the location of the EGR/DPF fuel

and emission system components on the C Series
machines.
2
1. Engine
2. Intake Air Valve
3 3. Exhaust Gas Recirculation (EGR) Cooler
1
4 4. EGR Valve with Position Feedback
5. Exhaust Manifold Pressure Sensor (P3)
6. Exhaust Manifold Temperature Sensor (T3)
7. Waste Gate Turbo Pressure Modulator
5 8. Turbocharger Compressor
17 9. Fixed Geometry Turbocharger Turbine
14 6
10. Heated Exhaust Gas Oxygen Sensor (HEGO)
15
11. DOC Inlet Temperature Sensor
7
16 12. DPF Differential Pressure Sensor
13. Diesel Particulate Filter (DPF)
14. DPF Inlet Temperature Sensor
9 15. Diesel Oxidation Catalyst (DOC)
13 8 16. Turbocharger Waste Gate Valve
11 10 17. Turbocharger Waste Gate Diaphragm
12
Figure 4
COOLED EGR SYSTEM

The EGR components are similar to those used
on some Tier 3 engine applications. Their main
function is to reduce the amount of oxygen in
the combustion process. A lower oxygen level
suppresses the combustion process, which reduces
combustion temperatures and produces less NOx.
Tier 4A requires increased cooled EGR and a more
sophisticated fuel system than Tier 3 to lower NOx
to the required level. Therefore, the EGR cooler
has been enlarged in order to decrease the amount
of NOx pollutants to the new threshold. Other
components include:
• Updated EGR actuator (stepper motor),

Figure 5.
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Figure 5
5
• An exhaust manifold temperature sensor,

Figure 6, to closely monitor the exhaust
temperature of the engine.
Figure 6
• An exhaust manifold pressure sensor,

Figure 7, to monitor exhaust system
backpressure and EGR flow.
Figure 7
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6
• A Heated Exhaust Gas Oxygen (HEGO)

sensor, Figure 8, is used to determine
the oxygen concentration in the exhaust.
This sensor provides extremely accurate
measurements with two measuring cells and
a six-core connector. It provides combustion
system (NOx level) efficiency information
to the EDC, Figure 9, which uses that
information to determine the fuel injection and
EGR requirements to control levels.
Figure 8
Figure 9
DPF SYSTEM
The DPF components include the following:
Diesel Oxidation Catalyst (DOC)
The DOC, Figure 10, helps control carbon
monoxide (CO) and hydrocarbons (HC), as well
as other odor-causing compounds. It turns the
majority of the emissions into oxygen and water. It
essentially continues and completes the combustion
process for any remaining fuel or oxygen in the
exhaust stream.
TECH-COM
Figure 10
7
Diesel Particulate Filter (DPF) 1

The particulate filter, 1, Figure 11, captures PM,
or “soot,” in the exhaust stream. The filter uses a
porous, catalytically coated, silicon carbide filter to
trap particulates. The filter is a series of dead end
channels. Exhaust is forced through the wall to an
exit channel, which traps the soot.
Figure 11
3 4
1 2
Delta Pressure Sensor (DPS) 5

The DPS, Figure 12, is used to measure the
soot loading of the filter. It monitors DPF inlet and 6
outlet pressures (delta change as the filter fills with
soot) to determine when regeneration (cleaning) 1. Diesel Oxidation Catalyst
is needed. It has a 5-volt reference, 3-wire circuit, 2. Diesel Particulate Filter
and is diagnosed similarly to a boost sensor – two 3. Differential Pressure Sensor
sample lines (one subtracted from the other). 4. Exhaust Outlet
5. Differential Pressure Measuring Ports
6. Exhaust Inlet
3
TECH-COM
Figure 12
8
DPF
DOC
DPF Exhaust Temperature Sensors
These sensors, Figure 13, monitor DOC and DPF
temperatures. The temp sensor upstream from
the DOC monitors warm-up to allow the start of
regeneration. The temp sensor downstream from
the DOC measures the temperature of the exhaust
gases at the inlet of the DPF. It also monitors and
controls late injection for regeneration. Both sensors
are 5-volt BIAS voltage, 2-wire circuits. They are
relied on for fuel injection trigger points during
regeneration.
THE REGENERATION PROCESS

To prevent clogging of the diesel particulate filter,
hot exhaust gases heat the DPF substrate, igniting Figure 13
the soot that has collected and built up in the cells.
When the particulate matter is burned off, it leaves
ash and yields carbon dioxide and small amounts
of water. When complete, all that remains is a tiny
amount of ash, which effectively restores the flow
through the cell walls. This is called regeneration.
Figure 14 shows the dosing regeneration process.
There are four types of regeneration.
Passive Regeneration Figure 14

Passive regeneration takes place during normal
operation, whenever the machine is worked hard
enough to raise the exhaust temperature above
280ºC (536ºF). At this point, the engine load
elevates exhaust temperatures enough to burn
small amounts of soot. Passive regeneration will
normally occur at temp ranges of 280ºC (536ºF) to
nearly 500ºC (932ºF). This function is transparent to
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the operator.
9
Automatic Regeneration
The engine control software initiates this process
when it determines regeneration is required
and certain conditions are met. Typical exhaust
temperatures will be in the 600ºC (1112ºF) range.
Automatic regeneration can occur while the vehicle
is moving or not, and requires no action from the
driver. The engine control system will, depending
upon schedule and conditions, add late injections in
order to try to raise exhaust temperature.
The engine controller is triggered by:

• Predetermined maximum soot loading model
(pre-programming).
• Elapsed hours of operation – 8 hours
(approx.).
• Fuel consumption – number of gallons of fuel
(load).
• Delta exhaust pressure across the DPF.
NOTE:
The engine coolant must be above 60ºC
(140°F) before the engine controller
will allow regeneration. It will last
approximately 10 minutes.
Manual Regeneration
This is also referred to as active (forced)
regeneration and is designed to produce high
exhaust temperatures. Regeneration is requested
by the engine controller (the operator is notified
by a light on the dash) and commanded by the
operator. The machine must be at low idle position,
with the FNR switch in Neutral and the park brake
applied. Once these conditions are reached, engine
speed increases to 2000 rpm with the throttle in idle
position.
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10
The engine fuel injectors spray fuel into the cylinder

during the exhaust stroke, where fuel vapor is
exhausted from the engine down to the DOC in
order to raise exhaust temperature. Late injections
must be monitored to ensure the DPF does not
overheat.
After the cycle has completed, the operator can

continue to work. This process takes approximately
20 minutes.
Service Regeneration
Technicians can command regeneration using
an Electronic Service Tool (EST) for service or
diagnostic purposes. It can be commanded at
any time regardless of soot load in the DPF. See
“Controller Tests” in the Service, EST Functions,
and the DPF System section of this Tech-Com.
Figure 15
DPF Regeneration Late Injection
Figure 15 is an example of what late injection looks
like during regeneration. Fuel will be adjusted if
the DPF temperature starts to become excessive.
Temperatures must be closely controlled to prevent
system damage.
Post-injection is cycled to maintain temperature and

safeguard the DPF. Excessive heat can cause DPF
meltdown, Figure 16.
THE F5H ENGINE

FPT’s 3.4L Common Rail F5H engine incorporates Figure 16
the:
• Updated EGR system
• DPF System
• Common rail fuel system
• Intake air valve
• Boost electric pressure modulator valve
• New crankcase breather filter
• Hydraulic lifters
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Common Rail Fuel System

The common rail system has a CP4.1 Bosch single
piston pump. Its operation and pressures are similar
to common rail-type NEF engines.
11
New injectors, Figure 17, have:

1. Injector nozzle tubes (fuel line from rail to
injector).
2. Separate fuel return hoses.
Figure 17
The F5H engine uses a glow plug system. When

energized by the glow plug controller, Figure 18,
surface temperature reaches over 1000°C (1832°F)
within a few seconds. All injector and glow plug
wiring comes from a central enclosed housing,
Figure 19.
Figure 18
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Figure 19
12
Engine Controller

A Bosch EDC17C49 controller, Figure 20, controls
the engine fuel injection, EGR, and DPF systems.
The controller:
• Controls the speed and power output of the
engine.
• Minimizes the generation of NOx pollutants.
• Receives sensor inputs from the DPF system
sensors and determines regeneration.
• Monitors EGR sensors and controls operation.
Figure 20
Intake Air Valve

The intake air valve, Figure 21:
• Restricts the airflow during manual
regeneration. Limiting the airflow causes the
exhaust temp to elevate to help burn PM.
• Is used to increase flow of EGR gas.
• Raises incoming air temperature during cold
weather temperatures.
• Incorporates a feedback circuit for accurate
position measurement by the Engine Control
Unit (ECU).
Figure 21
Boost Pressure Modulator Valve

This valve, Figure 22, dampens the pressure waves
in the control system of the turbocharger’s waste P3
gate actuator in order to improve boost pressure
stability. It modulates:
• The medium pressure to control the
turbocharger waste gate actuator.
• The intake port (P3) pressure and provides
the pressure in the outlet port (P2) according P1
Vacuum before
to the PWM electrical signal provided to the P2 compressor
valve from the ECU.
Figure 22
TECH-COM
The boost pressure modulator valve is pulse width-

modulated by the engine controller.
13
Figure 23 shows the stabilization of the waves.
Figure 23
Crankcase Breather Filter

This filter is a centrifugal design, Figure 24.
Crankcase gases are drawn through the filter outer
section and, when spinning, heavy oil vapors are
Figure 24
thrown back to the crankcase, Figure 25. The valve
opens upon pressure differential and lighter vapors
are routed to intake.
TECH-COM
Figure 25
14
Hydraulic Slack Adjusters

No adjustment is necessary for the hydraulic
lifters, Figure 26. The valve cover is a robust thick
design for holding the common rail and is difficult to
remove. You must remove injector lines, then raise
and turn slightly for clearance to remove the valve
cover.
Engine Oil and Fuel Requirements

F5H engines require CJ-4 engine oil to meet EPA
emission standards and extend the life of the DPF.
CJ-4 oil offers:
Figure 26
• Lower oil consumption.
• Chemical reduction limits for phosphorus,
sulfur, and ash level is 1.0 wt. %.
Ultra Low Sulfur Diesel fuel is required to reach

emission standards. Regulation limits sulfur content
to 15 parts per million (ppm), down from 500 ppm.
The next section of this Tech-Com describes how regeneration affects

machine operation. To review before going on, try answering questions 1 – 10
in the Technician Recognition Test.
TECH-COM
15
C SERIES MACHINES
REGENERATION AND MACHINE OPERATION
Automatic Regeneration
On C Series machines, regeneration occurs
approximately every eight hours of operation. The
operator can continue normal operation during this
cycle. When regeneration occurs:
1. The operator will hear a beep, the cluster
will flash the word “ON” in the LCD display, 1
1, Figure 27, and the ON regeneration
symbol will appear, Figure 28.
2. The cluster will alternate between the
hour meter and the “ON” display.
3. At the end of the regeneration cycle
(approximately 10 minutes), there will be
another beep, the cluster will flash “OFF,”
Figure 27
and the OFF regeneration symbol will
appear, Figure 29.
4. The cluster will alternate between the
hour meter and the “OFF” display.
NOTE:
If the regeneration doesn’t finish in 10
minutes, the beep and the ON symbol
will occur at 5-minute intervals until the
process is complete. The operator may
Figure 28
notice an increase in engine noise level.

This will most likely occur during hydraulic
load or engine recovery. It is possible there
may be a burning or “hot” odor present
during regeneration.
Figure 29
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16
Manual (Active or Forced) Regeneration

On occasion, the machine will need to be safely
parked and run through a Manual regeneration
to clear accumulated soot that cannot be cleared
through normal operating cycles. When forced
regeneration is necessary:
1. The operator will hear a beep, the cluster
will flash the word “PARK,” and the
regeneration symbol will appear, Figure Figure 30
30.
2. Calmly select a good place to park,
which should be outdoors, and be careful
to keep the vehicle away from any
combustible materials.
3. After the vehicle is parked (FNR lever in
Neutral, park brake applied, and throttles
at idle), the cluster will flash “START,”
Figure 31. Figure 31
4. While safely parked, press the Enter
rocker switch on the side console, 1,
Figure 32. From this point, do NOT place
the FNR in gear, release the park brake,
or depress or adjust the throttles. The
cluster enters a WAIT period, then an ON
period, Figure 33.
Figure 32
Figure 33
TECH-COM
17
5. The engine speed will rise to 2000 rpm,
and the forced regeneration will be in
process. When the cycle is complete
(approximately 20 minutes, but may be
more or less), the cluster will show “OFF”
and the regeneration symbol, Figure 34.
The engine speed should return to normal
idle. The operator can resume normal
operation.
Figure 34
Service Tips:
• If the operator attempts to adjust the FNR

setting, park brake, or throttles, “FAIL” and the
regeneration symbol will appear, Figure 35.
• If the operator does not park the unit and allow
the forced regeneration cycle to run, the unit
will derate and no power will be Figure 35

available to complete the operation. Allowing
this condition to persist can also lead to
impairment, requiring DPF replacement.
• Remember, there may be a burning or “hot”
odor present during regeneration.
Inhibiting Regeneration
The operator will have the option to inhibit auto
regeneration if the machine is in an environment
where the regeneration would be hazardous.
The regeneration inhibit Selection screen allows
the operator to delay the DPF auto regeneration
process during the current key cycle, but the
regeneration inhibit feature returns to the enable
setting by default at the next key cycle.
NOTE:
The operator may choose to delay the
auto regeneration process, but continuing
to delay the auto regeneration process will
TECH-COM
eventually result in a forced regeneration.
18
To enable the regeneration inhibit feature: 2
1. Press Enter, 1, Figure 36, to access the
menu screens.
2. Press the Up, 2, or Down arrow, 3, to

3 1
navigate through the menu screens.
3. When the regeneration inhibit selection

screen displays, press the Enter key. Figure 36
4. The menu screen flashes, Figure 37.
Figure 37
5. Press Enter to enable the regeneration

inhibit process. The display screen
changes to indicate regeneration is
inhibited. The regeneration inhibit symbol,
Figure 38, will appear on a consistent
basis with an audible alert until the
operator disables the feature or turns the
engine OFF.
Figure 38
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19
Oil Change Reset
The oil life reset Selection screen allows the
operator to clear the active warning indicating an oil
change is required. 2
To reset oil life:

1. Turn the engine OFF.
2. Turn the key to the ON position, but do not
3 1
start the engine.
3. Press Enter, 1, Figure 39, to access the
menu screens.
Figure 39
4. Press the Up, 2, or Down arrow, 3, to
navigate through the menu screens.
5. Stop when the Selection screen displays

the oil life reset symbol, Figure 40.
Figure 40
6. Press Enter to reset the oil life. The

display flashes and changes to OFF,
Figure 41.
Figure 41
7. After a few seconds, the screen defaults
to the machine hour screen.
TECH-COM
20
SKID STEER LOADERS (SSL) AND COMPACT

TRACK LOADERS (CTL)
The cluster text display, 1, Figure 42 (AIC shown),
displays information for the automatic and manual
regeneration cycles.
Automatic Regeneration 1
During automatic regeneration:
1. The system will generate a beep and the
text display will show “dPF ON” at the start
of the cycle.
2. The system will generate a beep and
display “dPF OFF” at the completion of the
regeneration cycle.
Manual Regeneration
During manual regeneration:
1. The operator will be notified with an
extended beep and an amber or red LED, 2
and the text display will show “dPF PARK”
when the soot level is high in the DPF
system.
2. The operator will then need to:
• Park the machine. Figure 42
• Bring the unit to operating temperature.
• Disable all hydraulics.
• Put both the hand and foot throttles in
their idle position.
• Wait for the DPF regeneration IDLE
symbol to appear on the display.
3. Press the Aux Override button, 2, Figure
42.
4. The text “dPF START PRESS AUXOV”
appears on the LED display. The system is
validating machine readiness and that all
actions have been completed.
5. One of the following will occur.
• “dPF ON” is displayed, indicating the
regeneration is in process.
TECH-COM
• “dPF FAIL” is displayed, indicating the

machine is not ready. If you see this
message, you need to repeat Step 2.
21
6. “dPF OFF” is displayed, indicating the
regeneration process is complete. The
machine is ready for operation.
Inhibiting Regeneration
The procedure for inhibiting auto regeneration 1
if the machine is in an environment where the
regeneration would be hazardous is similar to the C
Series machines.
NOTE:
The text display, 1, Figure 43, reads “dPF
INHIb” for five seconds every five minutes
with an audible alarm.
3
2
To inhibit regeneration:
1. Once in the SETUP menu, press the
START button, 2, until “dPF” appears on
the display.
2. Push the POWER button, 3, to view
“INHIB” on the display.
3. Push the START button to toggle between Figure 43
the choices.
4. Push the POWER button to save the
current display selection.
NOTE:
The operator may choose to bypass the
DPF regeneration, but this will eventually
force the engine to derate significantly,
which will affect machine performance.
Each bypass will inhibit the regeneration
until the next key cycle.
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22
Oil Change Reset

The UCM will track engine load and the number
of DPF regeneration cycles and suggest when
the engine oil is due to be changed. After the oil
change, you will need to reset the oil change timer
in the cluster or by accessing the Configuration
menu using the EST.
To reset the oil life monitoring feature with the
cluster:
1. Once in the SETUP menu, press the
START button, 2, Figure 43, until “OIL”
appears on the display.
2. Push the POWER button, 3, Figure 43, to
view “RESET” on the display.
3. Push the START button to reset the oil life.
4. Push the POWER button to save.
In the next section of this Tech-Com, we’ll explain some service and EST
functions used specifically with the DPF system. To review before going on,
try answering questions 11 – 16 in the Technician Recognition Test.
TECH-COM
23
The EST is used to monitor, program, and
SERVICE, EST FUNCTIONS, AND THE EGR/DPF SYSTEM
troubleshoot three controllers on the New Holland
Construction equipment covered in this Tech-Com.
All three communicate through the CAN Bus.
1. Bosch engine controller, which includes
EGR controls.
2. Electronic Instrument Cluster (EIC)/
Advanced Instrument Cluster (AIC) for
SSL and CTL EH machines. Vehicle
Control Module (VCM) for loader
backhoes.
3. Universal Control Module (UCM) for SSL
and CTL EH machines.
On SSLs and CTLs, all three are communicated

with through a diagnostic connector located in the
right front corner of the operator compartment,
Figure 44, near the cab safety hinge.
Figure 44
On loader backhoes, the diagnostic connector, D1,

is located by the fuse panel, Figure 45.
Figure 45
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24
MONITORING ENGINE AND EGR CONTROLS

When diagnosing problems with any of the systems
that are run through electronic controllers, the ability
to see the inputs and outputs of each controller
is very important. You can use the EST’s Monitor
function for all the cluster inputs and engine and
EGR controls. If in doubt, check ASIST Knowledge
for expected results. To monitor engine- and EGR-
related parameters:
1. Click on the Monitor Parameters icon
.
2. Select the parameters to be monitored
by the EST by clicking on the CHANGE
PARAMETER SELECTIONS button, 1,
Figure 46.
4
2
Figure 46
3. Highlight the desired parameter from the
list on the left by clicking on it, then click
the ADD button, 2, to place the parameter
into the list on the right. Double-clicking
on a parameter will also perform the same
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function. Parameters can also be removed

from the list on the right in the same
manner, but by clicking REMOVE, 3.
25
NOTE:
The icons at the left side of the parameter
names, 4, indicate whether they have a
variable reading , such as
temperature or sensor signal voltage,
or are simply on or off , such as a
pressure or dash switch.
After selecting as many of the parameters as

desired, click the EXIT button. This will return to the
previous screen, and the selected parameters will
be displayed with the values seen by the controllers
in real time. The example shown in Figure 47 is not
connected to a machine, so no parameter values
are shown. Notice parameter 11, which is the
Exhaust Gas Temperature for the EGR system.
Figure 47
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26
CONFIGURATIONS

You will use the Configuration icon, 1, Figure 48,
to send model specific features and customer
preferences to the machine controllers.
Figure 48
NOTE:
C Series screens are shown as examples
in this section.
Entering Fuel Injector IMA Codes

Each of the injectors on the engine is assigned a
unique code number based on the characteristics
of the individual injector. The injector codes, Figure
49, are on the body of the injector itself.
It is necessary to tell the ECU what each injector
code is in order for the ECU to operate the fuel
injector correctly. If no injector codes are present
in the ECU, fault codes will be generated, and the
engine will de-rate.
• Enter injector codes any time an injector is
replaced.
• They may need to be entered after
downloading a new ECU dataset.
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• New Holland recommends recording each

of the injector codes BEFORE downloading
software to or replacing the ECU.
Figure 49
27
This is a similar process to the Isuzu engine in
excavators.
To enter the injector code:
1. Select the Configuration icon on the EST
icon bar.
2. Select Engine Injector Code Configuration
from the menu, 1, Figure 50, and
CONFIGURE SELECTED ITEM, 2.
Figure 50
3. Select RETRIEVE DATA FROM
CONTROLLER, 1, Figure 51, to view or
enter injector codes.
3
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Figure 51
28
4. Enter any changed or new codes in the

MODIFIED VALUES boxes, 2.
5. Select SAVE DATA TO CONTROLLER, 3, to
save the modified values.
Replacement of DPF Components

The ECU calculates a degradation of some of the
emissions components over time. When a new
component is installed, the ECU must be reset so it
can start over with the degradation algorithm. This
procedure is the same for the Diesel Particulate Filter
(DPF), Engine Oil/Filter, Differential Pressure Sensor
(Delta P), Lambda (Heated Exhaust Gas Oxygen/
HEGO) Sensor, Oxidant Catalyst (OxiCat), and Rail
Pressure Relief Valve (PRV) components. Failing
to complete this procedure will lead to poor engine
performance.
1. After a component is replaced, reset the ECU
by clicking on the appropriate item on the
CONFIGURATION ITEM SELECTION list,
then clicking CONFIGURE SELECTED ITEM.
2. When the new window opens, Figure 52,
click the RESET button, 1.
3
2
TECH-COM
Figure 52
3. When the STATUS window, 2, shows the
process is complete, EXIT, 3, back out of the
window.
29
CONTROLLER TESTS
Service Regeneration
The Controller Tests icon allows a technician

to force the engine controller into performing a
Service Regeneration, which will cause the full DPF
regeneration to take place. This may be necessary
in the event of operator misuse or system faults that
cause the ECU to be unable to complete the
regeneration process through normal means of
passive, auto, or manual regeneration.
In order for the test to complete successfully:

• The engine must be running and at operating
temperature (over 60°C/140°F) before
beginning the test.
• The FNR lever must be in Neutral (backhoes),
the park brake applied, and the throttles at idle.
• The machine will need to be in a safe area
without combustible materials since the
exhaust temperature will become very hot
during the procedure.
To begin the Service Regeneration:

1. Select Service Regeneration Test from
the CONTROLLER TESTS SELECTION
list, 1, Figure 53, and click on START TEST.
2
TECH-COM
Figure 53
30
2. When the SERVICE REGENERATION

TEST window opens, 2, click on the
START TEST button, 3. Select OK on the
warning screen. The window will show
status information, 4, for the duration of
the test.
ASIST
You can always click on the EST ASIST icon

to see ASIST Knowledge for the machine.
ADDITIONAL F5H ENGINE AND EGR/DPF

SERVICE AREAS
Front Cover Alignment
There are no front cover dowel pins, so alignment
tools must be used for front cover installation. You
will need:
1. 380100280 Front Cover Alignment Tool
(lower)
2. 380100281 Front Cover Alignment Tool
(upper)
3. 380100279 Front Seal Installer
The front cover gasket, Figure 54, is metal. Seal

depth must be measured
Figure 54
TECH-COM
31
Thermostat Housing
The thermostat housing, Figure 55, is plastic,
secured with a clip, Figure 56, and sealed with an
O-ring, Figure 57.
Figure 55
Figure 56
Figure 57
TECH-COM
32
Belt Adjustment

Both the alternator and the air conditioner belt are
a stretch belt design. The belts must be tightened
until the adjustment reaches the stops, as shown in
Figure 58.
Heated Exhaust Gas Oxygen (HEGO) Sensor

When replacing or installing the HEGO sensor,
Figure 59:
• Never apply contact spray or grease to the
connector, 1, because surrounding air is
required for sensor operation. Figure 58
• Always cover the sensor and connector before

washing the engine or applying underseal. 1
• Inspect the connecting cable, 2, for kinking or
abrasion caused by strain, compression, or
vibration.
• Avoid hot resting and contact points on or at
the exhaust system. 2
• Do not subject the sensor body, 3, to impact
or high pressure cleaning.
• Treat the sensor with care. It is never to
be thrown or dropped. Protect against
mechanical loading.
• Do not apply thread grease to the sensor tip’s
protective tube, 4.
3
Figure 59
The Technician Recognition Test follows the Appendix. Questions 17 – 20

review this section.
TECH-COM
33
TECHNICIAN RECOGNITION TEST
Complete the test and mark your answers in the book before going to
WebU and submitting them for immediate feedback and scoring. This
will ensure you have a copy of your answers.
1. The cooled EGR system __________.
A. includes the Diesel Oxidation Catalyst (DOC)

B. has a diesel particulate filter for capturing PM in the exhaust stream
C. is incorporated to reduce NOx formation within the engine’s combustion chamber
D. All of the above.
2. The DPF system __________.
A. includes the stepper motor

B. has a diesel particulate filter for capturing PM in the exhaust stream
C. monitors exhaust system backpressure and EGR flow
D. all of the above
3. The cooled EGR system’s __________ sensor has two measuring cells and a six-core connector and
provides combustion system efficiency information to the EDC, which uses that information to determine
the fuel injection and EGR requirements to control NOx levels.
A. exhaust manifold temperature

B. Heated Exhaust Gas Oxygen (HEGO)
C. exhaust manifold pressure
D. Delta Pressure (DPS)
4. Which of the following statements best describes the Diesel Oxidation Catalyst?
A. Traps particulates.
B. Determines the oxygen concentration in the exhaust.
C. Has been enlarged in order to decrease the amount of NOx pollutants to the Tier 4A threshold
D. Turns the majority of the emissions into oxygen and water.
5. The __________ sensor monitors DPF inlet and outlet pressures to determine when regeneration is
needed.
A. Delta Pressure (DPS)

B. DPF exhaust temperature
TECH-COM
C. exhaust manifold pressure

D. Heated Exhaust Gas Oxygen (HEGO)
34
6.

For __________ regeneration to occur, the machine must be at low idle position, with the FNR switch in
Neutral and the park brake applied.
A. passive
B. automatic
C. manual
D. service
7. This type of regeneration can be commanded at any time using the EST, regardless of soot load in the
DPF.
A. passive
B. automatic
C. manual
D. service
8. __________ regeneration takes place during normal operation, whenever the machine is worked hard
enough to raise the exhaust temperature above 280ºC (536ºF).
A. Passive
B. Automatic
C. Manual
D. Service
9. __________ regeneration is initiated by the engine control software, which is triggered by a programmed
maximum soot loading model, approximately eight hours of operation, fuel consumption, and delta
exhaust pressure across the DPF.
A. Passive
B. Automatic
C. Manual
D. Service
10. The F5H common rail engine has an intake air valve that is used to __________.
A. restrict the airflow during manual regeneration
B. raise incoming air temperature during cold weather temperatures
C. increase flow of EGR gas
D. all of the above
11. On C Series machines, you must press the Enter rocker switch on the side console to start the __________
process.
TECH-COM
A. passive
B. automatic
C. manual
D. service
35
12. The operator will see this symbol if he or she fails to park the unit and allow the forced regeneration cycle
to run when the cluster flashes the word “PARK” with the regeneration symbol.
A.
B.
C.
D.
13. Press the switch labeled callout __________ first to access the menu screens for inhibiting regeneration.
A. _____
C B
B. _____
C. _____
D A
D. _____
14. This symbol indicates __________.
A. passive regeneration is in process

B. automatic regeneration is in process
C. regeneration has failed
D. regeneration is inhibited
15. On skid steer loaders and compact track loaders, the operator must press the __________ button to
validate machine readiness for the manual regeneration to begin.
A. Power
B. Start
TECH-COM
C. Aux Override
D. Operate
36
16. Which of the following statements about inhibiting regeneration is TRUE for all the machine models

covered in this Tech-Com?
A. Each bypass of regeneration will inhibit regeneration until the next key cycle.
B. Only the service technician can inhibit regeneration.
C. The menu for inhibiting regeneration can only be accessed with the EST.
D. A regeneration inhibit symbol will appear on the cluster, but there is no audible alarm.
17. This symbol next to a parameter name on the EST’s Monitor screen indicates the parameter
__________.
A. is an on or off switch
B. has a variable reading
18. Use the EST’s Configuration menu to __________.

A. monitor engine and EGR controls
B. trigger a full DPF regeneration
C. enter an engine injector code
19. You’ve replaced the Lambda (HEGO) sensor. Why do you need to configure this item using the
Configuration menu?
A. So the dash will operate.

B. So the CAN bus recognizes the new component.
C. So the sensor provides accurate measurements of the oxygen concentration in the exhaust.
D. To reset the ECU so it can start over with the degradation algorithm.
20. Which of the following conditions must be met before a Service Regeneration can be performed?
A. The engine must be running and at operating temperature.
B. The FNR lever must be in Neutral, the park brake applied, and the throttles at idle.
C. The machine must be in a safe area without combustible materials.
Remember, submitting your test answers online through WebU

automatically satisfies the Tech-Com requirement for the Certified
Technician Program.
TECH-COM
37
2006 2012
RELEASES TO DATE
2006-C1 Skid-Steer and Compact Track 200 Series SSL and CTL EH Drive System
Loader Electrical and Hydraulic Compact Excavators
System Overview SCR Failure Resolution
2007
2007-C1 Enhanced ASIST Knowledge 2013
Search The F5H Tier 4A Common Rail Engine
2007-C2 Using the Electronic Service Tool
(EST) Additional Tools
2007-C3 Pilot Controls for L & C Series
SkidSteers
2007-C4 Undercarriage Assessment
2007-C5 LB.B and B Series Backhoe Pilot
Control Troubleshooting
2008
2008-C1 Tier 3 F5A and F5C Engine
Introduction and Overview
2008-C2 Hydraulics and Pressure and Flow
Compensation
2009
2009-C1 Web University: Overview for
Technicians
2009-C2 400 Series 3 EIC and Deluxe
Instrument Panel Overview
2009-C3 CX B Series Excavator Monitor
System Overview
2009-C4 Small/Medium Engine Fuel
System Diagnostics
2010
Introduction to CNH Tier 4 Emission Solutions
2011
D Series Dozer Hydrostat Diagnostics
Wheel Loader AIC Functions
Using the eTIM Electronic Technical
Information System
TECH-COM
E175B and E215B Cycle Time and Pressure

Checks
38
OBTAINING PREVIOUS TECH-COMS
Can’t find your old copy of a Tech-Com? See a Tech-Com on the list you want to get your hands
on? Have your Service Manager go to the Document Management Center Order Website and
find it for you. The DMC Order Website can be accessed through the Dealer Portal or you can
contact the DMC by phone: 262-636-7540.
To find a Tech-Com, simply use the “Type” drop down box to select “TC – TECH COM
Manual” and click “Search” to view all Tech-Coms. You can also type in the release title in the
“Description” box to find a specific topic.
Please Note: Tech-Coms from the current program year are not available for direct purchase until
after the program year closes.
TECH-COM
39

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The F5H Tier 4A

Common Rail Engine 2013

F5H_Tier_4A_Common_Rail_Engine_print_cover_4-3-13.indd 1 4/19/2013 12:09:35 PM

When you have completed this TECH-COM Program

Email your comments to natechcomadmin@cnh.com -or-

EGR/DPF TECHNOLOGY AND THE F5H ENGINE 4

REGENERATION AND MACHINE OPERATION 16

SERVICE, EST FUNCTIONS, AND THE EGR/DPF SYSTEM 24

TECHNICIAN RECOGNITION TEST 34

OBTAINING PREVIOUS TECH-COMS 39

8. To quit the program, press “Stop” on the DVD remote.

If you are using a computer DVD player:

1998 2002 2008 2011 2014

To meet the EPA standards, these models are

This Tech-Com will cover:

EGR System DPF Filter

Glow Plug System

Intake Air Valve

EGR/DPF TECHNOLOGY AND THE F5H ENGINE

COOLED EGR SYSTEM

• Updated EGR actuator (stepper motor),

• An exhaust manifold temperature sensor,

• An exhaust manifold pressure sensor,

EGR/DPF TECHNOLOGY AND THE F5H ENGINE

Diesel Particulate Filter (DPF) 1

Delta Pressure Sensor (DPS) 5

THE REGENERATION PROCESS

Figure 14 shows the dosing regeneration process.

There are four types of regeneration.

Passive Regeneration Figure 14

The engine controller is triggered by:

EGR/DPF TECHNOLOGY AND THE F5H ENGINE

After the cycle has completed, the operator can

Post-injection is cycled to maintain temperature and

THE F5H ENGINE

Common Rail Fuel System

New injectors, Figure 17, have:

The F5H engine uses a glow plug system. When

EGR/DPF TECHNOLOGY AND THE F5H ENGINE

Intake Air Valve

Boost Pressure Modulator Valve

The boost pressure modulator valve is pulse width-

Figure 23 shows the stabilization of the waves.

Crankcase Breather Filter

EGR/DPF TECHNOLOGY AND THE F5H ENGINE

Engine Oil and Fuel Requirements

Ultra Low Sulfur Diesel fuel is required to reach

The next section of this Tech-Com describes how regeneration affects

notice an increase in engine noise level.

REGENERATION AND MACHINE OPERATION

• If the operator attempts to adjust the FNR

will derate and no power will be Figure 35

eventually result in a forced regeneration.

2. Press the Up, 2, or Down arrow, 3, to

3. When the regeneration inhibit selection

4. The menu screen flashes, Figure 37.

5. Press Enter to enable the regeneration

To reset oil life: