New holland t6.150 auto command tier 4a tractor service repair manual

Part number 47665870
English
March 2014
Replaces part number 47461584
SERVICE MANUAL
T6.120 / T6.140 / T6.150 / T6.155 /
T6.160 / T6.165 / T6.175 /
T6.140 AutoCommand / T6.150 AutoCommand /
T6.160 AutoCommand
Tier 4A
Tractor
Printed in U.S.A.
Copyright © 2014 CNH Industrial America LLC. All Rights Reserved. New Holland is a registered trademark of CNH Industrial America LLC.
Racine Wisconsin 53404 U.S.A.

Link Product / Engine
Product Market Product Engine
T6.140 AutoCommand North America F4DFE413C*A
T6.150 AutoCommand North America F4DFE413B*A
T6.160 AutoCommand North America F4DFE413A*A
T6.120 North America F4DFE413E*A
T6.140 North America F4DFE413C*A
T6.150 North America F4DFE413B*A
T6.155 North America F4DFE613F*A
T6.160 North America F4DFE413A*A
T6.165 North America F4DFE613E*A
T6.175 North America F4DFE6132*A
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Contents
INTRODUCTION
Engine....................................................................................... 10
[10.001] Engine and crankcase ............................................................. 10.1
[10.216] Fuel tanks .......................................................................... 10.2
[10.218] Fuel injection system............................................................... 10.3
[10.202] Air cleaners and lines .............................................................. 10.4
[10.250] Turbocharger and lines............................................................. 10.5
[10.254] Intake and exhaust manifolds and muffler ......................................... 10.6
[10.500] Selective Catalytic Reduction (SCR) exhaust treatment ........................... 10.7
[10.400] Engine cooling system ............................................................. 10.8
[10.414] Fan and drive ...................................................................... 10.9
[10.310] Aftercooler........................................................................ 10.10
Clutch ....................................................................................... 18
[18.112] Slip clutch or flywheel damper ..................................................... 18.1
Transmission.............................................................................. 21
[21.112] Power shuttle transmission......................................................... 21.1
[21.134] Power shuttle transmission external controls ...................................... 21.2
[21.154] Power shuttle transmission internal components .................................. 21.3
[21.111] Semi-Powershift transmission ...................................................... 21.4
[21.133] Semi-Powershift transmission external controls ................................... 21.5
[21.103] Semi-Powershift transmission lubrication system.................................. 21.6
[21.152] Semi-Powershift transmission internal components ............................... 21.7
[21.504] Continuously Variable Transmission (CVT) ........................................ 21.8
[21.505] Continuously Variable Transmission (CVT) external controls...................... 21.9
[21.506] Continuously Variable Transmission (CVT) lubrication system .................. 21.10
[21.507] Continuously Variable Transmission (CVT) internal components................ 21.11
[21.160] Creeper .......................................................................... 21.12
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[21.166] Overdrive......................................................................... 21.13
Four-Wheel Drive (4WD) system .................................................. 23
[23.202] Electro-hydraulic control ........................................................... 23.1
[23.314] Drive shaft.......................................................................... 23.2
Front axle system ....................................................................... 25
[25.100] Powered front axle ................................................................. 25.1
[25.102] Front bevel gear set and differential ............................................... 25.2
[25.108] Final drive hub, steering knuckles, and shafts ..................................... 25.3
[25.122] Axle suspension control............................................................ 25.4
Rear axle system........................................................................ 27
[27.100] Powered rear axle.................................................................. 27.1
[27.106] Rear bevel gear set and differential................................................ 27.2
[27.120] Planetary and final drives .......................................................... 27.3
Power Take-Off (PTO)................................................................. 31
[31.104] Rear electro-hydraulic control...................................................... 31.1
[31.114] Two-speed rear Power Take-Off (PTO) ............................................ 31.2
[31.116] Three-speed rear Power Take-Off (PTO) .......................................... 31.3
[31.142] Front Power Take-Off (PTO) control ............................................... 31.4
[31.146] Front Power Take-Off (PTO) ....................................................... 31.5
Brakes and controls .................................................................... 33
[33.202] Hydraulic service brakes ........................................................... 33.1
[33.110] Parking brake or parking lock ...................................................... 33.2
[33.204] Front axle brake.................................................................... 33.3
[33.220] Trailer brake hydraulic control...................................................... 33.4
[33.224] Trailer brake pneumatic control .................................................... 33.5
Hydraulic systems....................................................................... 35
[35.000] Hydraulic systems.................................................................. 35.1
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[35.300] Reservoir, cooler, and filters........................................................ 35.2
[35.104] Fixed displacement pump.......................................................... 35.3
[35.106] Variable displacement pump ....................................................... 35.4
[35.105] Charge pump....................................................................... 35.5
[35.322] Regulated/Low pressure system ................................................... 35.6
[35.204] Remote control valves ............................................................. 35.7
[35.220] Auxiliary hydraulic pump and lines ................................................. 35.8
[35.114] Three-point hitch control valve ..................................................... 35.9
[35.116] Three-point hitch cylinder ........................................................ 35.10
[35.160] Front hitch controls and lines .................................................... 35.11
Hitches, drawbars, and implement couplings.................................. 37
[37.120] Rear three-point hitch linkage...................................................... 37.1
Frames and ballasting ................................................................. 39
[39.100] Frame .............................................................................. 39.1
Steering..................................................................................... 41
[41.101] Steering control .................................................................... 41.1
[41.106] Tie rods............................................................................. 41.2
[41.200] Hydraulic control components...................................................... 41.3
[41.206] Pump ............................................................................... 41.4
[41.216] Cylinders ........................................................................... 41.5
Wheels...................................................................................... 44
[44.511] Front wheels........................................................................ 44.1
[44.520] Rear wheels........................................................................ 44.2
Cab climate control ..................................................................... 50
[50.100] Heating ............................................................................. 50.1
[50.104] Ventilation .......................................................................... 50.2
[50.200] Air conditioning..................................................................... 50.3
Electrical systems....................................................................... 55
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[55.000] Electrical system ................................................................... 55.1
[55.100] Harnesses and connectors......................................................... 55.2
[55.015] Engine control system.............................................................. 55.3
[55.301] Alternator........................................................................... 55.4
[55.302] Battery.............................................................................. 55.5
[55.011] Fuel tank system ................................................................... 55.6
[55.988] Selective Catalytic Reduction (SCR) electrical system ............................ 55.7
[55.012] Engine cooling system ............................................................. 55.8
[55.640] Electronic modules ................................................................. 55.9
[55.513] Cab transmission controls........................................................ 55.10
[55.024] Transmission control system..................................................... 55.11
[55.020] Transmission speed sensors..................................................... 55.12
[55.021] Transmission pressure sensors .................................................. 55.13
[55.022] Transmission temperature sensors .............................................. 55.14
[55.023] Transmission position sensors ................................................... 55.15
[55.610] Ground speed control ............................................................ 55.16
[55.048] Rear Power Take-Off (PTO) control system ..................................... 55.17
[55.031] Parking brake electrical system .................................................. 55.18
[55.035] Remote control valve electric control ............................................ 55.19
[55.051] Cab Heating, Ventilation, and Air-Conditioning (HVAC) controls................. 55.20
[55.050] Heating, Ventilation, and Air-Conditioning (HVAC) control system............... 55.21
[55.047] Steering control system .......................................................... 55.22
[55.130] Rear three-point hitch electronic control system ................................. 55.23
[55.911] Global Positioning System (GPS) ................................................ 55.24
[55.405] External lighting switches and relays ............................................ 55.25
[55.510] Cab or platform harnesses and connectors...................................... 55.26
[55.408] Warning indicators, alarms, and instruments .................................... 55.27
[55.DTC] FAULT CODES.................................................................. 55.28
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Platform, cab, bodywork, and decals............................................. 90
[90.150] Cab................................................................................. 90.1
[90.100] Engine hood and panels ........................................................... 90.2
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INTRODUCTION
47665870 27/03/2014
1

INTRODUCTION
Foreword
IMPORTANT INFORMATION
All repair and maintenance works listed in this manual must be carried out only by staff belonging to the NEW HOL-
LAND Service network, strictly complying with the instructions given and using, whenever required, the special tools.
Anyone who carries out the above operations without complying with the prescriptions shall be responsible for the
subsequent damages.
The manufacturer and all the organizations of its distribution chain, including - without limitation - national, regional or
local dealers, reject any responsibility for damages due to the anomalous behavior of parts and/or components not
approved by the manufacturer himself, including those used for the servicing or repair of the product manufactured
or marketed by the Manufacturer. In any case, no warranty is given or attributed on the product manufactured or
marketed by the Manufacturer in case of damages due to an anomalous behavior of parts and/or components not
approved by the Manufacturer.
No reproduction, though partial of text and illustrations allowed.
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3

INTRODUCTION
Foreword - How to use and navigate through this manual
This manual has been produced by a new technical information system. This new system is designed to deliver
technical information electronically through web delivery (eTIM), DVD, and paper manuals. A coding system called
SAP has been developed to link the technical information to other Product Support functions, e.g., Warranty.
Technical information is written to support the maintenance and service of the functions or systems on a customer's
machine. When a customer has a concern on their machine it is usually because a function or system on their ma-
chine is not working at all, is not working efficiently, or is not responding correctly to their commands. When you refer
to the technical information in this manual to resolve that customer's concern, you will find all the information classified
using the SAP coding, according to the functions or systems on that machine. Once you have located the technical
information for that function or system, you will then find all the mechanical, electrical or hydraulic devices, compo-
nents, assemblies, and sub assemblies for that function or system. You will also find all the types of information that
have been written for that function or system: the technical data (specifications), the functional data (how it works),
the diagnostic data (fault codes and troubleshooting), and the service data (remove, install adjust, etc.).
By integrating SAP coding into technical information, you will be able to search and retrieve just the right piece of
technical information you need to resolve that customer's concern on his machine. This is made possible by attaching
3 categories to each piece of technical information during the authoring process.
The first category is the Location, the second category is the Information Type and the third category is the Product:
• LOCATION - the component or function on the machine, that the piece of technical information is going to describe
(e.g., Fuel tank).
• INFORMATION TYPE - the piece of technical information that has been written for a particular component or func-
tion on the machine (e.g., Capacity would be a type of Technical Data describing the amount of fuel held by the fuel
tank).
• PRODUCT - the model for which the piece of technical information is written.
Every piece of technical information will have those three categories attached to it. You will be able to use any combi-
nation of those categories to find the right piece of technical information you need to resolve that customer's concern
on their machine.
That information could be:
• the procedure for how to remove the cylinder head
• a table of specifications for a hydraulic pump
• a fault code
• a troubleshooting table
• a special tool
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4

INTRODUCTION
Safety rules
PRECAUTIONARY STATEMENTS
Personal Safety
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all
safety messages that follow this symbol to avoid possible injury or death.
Throughout this manual , you will find the signal words DANGER, WARNING, and CAUTION followed by special
instructions. These precautions are intended for the personal safety of you and those working with you.
Read and understand all the safety messages in this manual before you operate or service the machine.
DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION, used with the safety alert symbol, indicates a hazardous situation which, if not avoided, could
result in minor or moderate injury.
FAILURE TO FOLLOW DANGER, WARNING, AND CAUTION MESSAGES COULD RESULT
IN DEATH OR SERIOUS INJURY.
NOTICE: Install new decals if the old decals are destroyed, lost painted over or cannot be read. When parts are
replaced that have decals make sure you install a new decal with each new part.
MACHINE SAFETY
NOTICE: Notice indicates a situation which, if not avoided, could result in machine or property damage.
Throughout this manual you will find the signal word Notice followed by special instructions to prevent machine or
property damage. The word Notice is used to address practices not related to personal safety.
INFORMATION
NOTE: Note indicates additional information which clarifies steps, procedures, or other information in this manual.
Throughout this manual you will find the word Note followed by additional information about a step, procedure, or
other information in the manual. The word Note is not intended to address personal safety or property damage.
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10

INTRODUCTION
ACCIDENT PREVENTION
WARNING
Avoid injury! Always do the following before lubricating, maintaining, or servicing the machine.
1. Disengage all drives.
2. Engage parking brake.
3. Lower all attachments to the ground, or raise and engage all safety locks.
4. Shut off engine.
5. Remove key from key switch.
6. Switch off battery key, if installed.
7. Wait for all machine movement to stop.
Failure to comply could result in death or serious injury.
W0047A
Most accidents or injuries that occur in workshops are the result of non compliance to simple and fundamental safety
principles. For this reason, IN MOST CASES THESE ACCIDENTS CAN BE AVOIDED by applying the fundamental
safety principles, acting with the necessary caution and care.
Accidents may occur with all types of machine, regardless of how well the machine in question was designed and
built.
SAFETY REQUIREMENTS FOR FLUID POWER SYSTEMS AND COMPONENTS - HY-
DRAULICS (EUROPEAN STANDARD EN982)
• Flexible hose assemblies must not be constructed from hoses which have been previously used as part of a hose
assembly.
• Do not weld hydraulic pipes: when flexible hoses or piping are damaged, replace them immediately.
• It is forbidden to modify a hydraulic accumulator by machining, welding or any other way.
• Before removing hydraulic accumulators for servicing, the liquid pressure in the accumulators must be reduced to
zero.
• Pressure check on hydraulic accumulators must be carried out by a method recommended by the accumulator
manufacturer.
• Take care not to exceed the maximum allowed pressure of the accumulator. After any check or adjustment, check
for leakages or gas in the hoses or pipes.
SAFETY RULES
General guidelines
• Carefully follow specified repair and maintenance procedures.
• When appropriate, use P.P.E (Personal Protective Equipment)
• Do not wear rings, wristwatches, jewellery, unbuttoned or loose articles of clothing such as: ties, torn clothing,
scarves, open jackets or shirts with open zips that may remain entangled in moving parts. It is advised to wear
approved safety clothing, e.g.: non-slip footwear, gloves, safety goggles, helmets, etc.
• Do not carry out repair operations with someone sitting in the driver's seat, unless the person is a trained technician
who is assisting with the operation in question.
• Do not operate the machine or use any of the implements from different positions, other than the driver's seat.
• Do not carry out operations on the machine with the engine running, unless specifically indicated.
• Bring all hydraulic cylinders to the home positions (down, retracted, etc.) before engine shut down.
• Stop the engine and check that the hydraulic circuits are pressure-free before removing caps, covers, valves, etc.
• All repair and maintenance operations must be carried out using extreme care and attention.
• Service steps and platforms used in the workshop or elsewhere should be built according to the applicable stan-
dards and legislation.
• Disconnect the power take off (p.t.o). and label the controls to indicate that the machine is being serviced. Any
parts that are to be raises must be locked in position.
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11

SERVICE MANUAL
Engine
T6.120 , T6.140 AutoCommand , T6.140 , T6.150 AutoCommand , T6.150 ,
T6.155 , T6.160 AutoCommand , T6.160 , T6.165 , T6.175
47665870 27/03/2014
10

Engine - Engine and crankcase
Engine - Disconnect
T6.155 NA
T6.165 NA
T6.175 NA
Prior operation:
Discharge the Air conditioning system, for further information refer to Air conditioning - Discharging (50.200)
Prior operation:
Disconnect battery, for further information refer to Battery - Disconnect (55.302)
Prior operation:
Drain the engine coolant system, for further information refer to Engine cooling system - Drain fluid (10.400)
Prior operation:
Remove the selective catalytic reduction (SRC) muffler, for further information refer to Selective Catalytic Reduction
(SCR) muffler and catalyst - Remove (10.500)
Prior operation:
Remove the selective catalytic reduction (SRC) coolant control valve, for further information refer to Coolant control
valve - Remove (10.500)
WARNING
Heavy objects!
Lift and handle all heavy components using lift-
ing equipment with adequate capacity. Always
support units or parts with suitable slings or
hooks. Make sure the work area is clear of all
bystanders.
Failure to comply could result in death or seri-
ous injury.
W0398A
WARNING
Avoid injury!
Handle all parts carefully. Do not place your
hands or fingers between parts. Use Personal
Protective Equipment (PPE) as indicated in this
manual, including protective goggles, gloves,
and safety footwear.
ous injury.
W0208A
1. Using suitable lifting equipment support the front
weights.
BAIL07APH062AVA 1
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2. Disconnect and remove the front weights from the
weight carrier.
BAIL07APH063AVA 2
3. Disconnect the radar electrical connector and remove
the radar (if fitted).
BAIL10CVT358AVA 3
4. Remove the flywheel speed sensor.
BAIS06CCM087AVA 4
5. Disconnect the engine harness electrical connectors.
BAIL12APH142AVA 5
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6. Detach the cab heater return pipe.
BAIL07APH121AVA 6
7. Disconnect the oil cooler supply pipes.
BAIL12APH143AVA 7
8. Disconnect the oil cooler supply and return pipes (1).
Remove the oil cooler pipes (2).
BAIL12APH144AVA 8
9. Disconnect the heater supply hose from the rear of the
engine cylinder head.
BAIL12APH145AVA 9
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10. Remove the starter motor heat shield.
BAIL12APH146AVA 10
11. Remove the starter motor cover.
BAIL10CVT361AVA 11
12. Disconnect the starter motor electrical connector.
BAIL10CVT363AVA 12
13. Disconnect the positive terminal (1), negative terminal
(2) relay and bracket (3) and position to one side.
BAIL12APH147AVA 13
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14. Disconnect the starter motor negative cables.
BAIL10CVT364AVA 14
15. Detach the alternator wiring harness electrical con-
nector from the bracket (1) and detach the wiring har-
ness (2).
BAIL10CVT365AVA 15
16. Disconnect the alternator electrical connectors.
BAIL10CVT366AVA 16
17. Disconnect the brake fluid reservoir electrical connec-
tor (1) and detach the brake fluid reservoir (2) and po-
sition it to one side.
BAIL10CVT367AVA 17
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18. Remove the front brake retaining bracket (1) and re-
move the front brake pipe (2).
BAIL12APH148AVA 18
19. Disconnect the A/C pipe from the A/C compressor.
NOTE: Install blanking plugs/caps to all openings to pre-
vent dirt ingress.
BAIL10CVT368AVA 19
20. Disconnect the high pressure A/C pipe (1).
Disconnect the low pressure switch electrical connec-
tor (2).
BAIL12APH149AVA 20
21. Disconnect the charge air cooler intake pipe.
BAIL12APH150AVA 21
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22. Detach the A/C pipes and position it to one side.
BAIL12APH151AVA 22
23. Disconnect the steering hoses.
NOTE: Mark the hoses to aid installation.
BAIL07APH105AVB 23
24. Disconnect the fuel supply line from the pre-filter/wa-
ter trap.
BAIL12APH152AVA 24
25. Disconnect the fuel return line (1).
Disconnect the flywheel electrical connector (2).
BAIL12APH153AVA 25
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26. Cut the cable ties.
BAIL12APH154AVA 26
27. Cut the starter motor wiring harness cable ties.
BAIL12APH155AVA 27
28. Disconnect the engine earth connector.
BAIL10CVT433AVA 28
29. Disconnect the diff lock supply pipe (1) and pneumatic
brake supply pipe (2).
Remove the pipe retaining bracket (3) and remove the
pipes.
BAIL07APH379AVA 29
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Vehicles with SuperSteer™ front axle
Remove the four-wheel drive shaft guard retaining bolts.
Remove the four-wheel drive shaft guard.
NOTE: Repeat the operation on both sides of the vehicle.
BAIS06CCM033AVA 30
Remove the four-wheel drive shaft front retaining bolts.
NOTE: Support the four-wheel drive shaft.
BAIS06CCM034AVA 31
30. Remove the four-wheel drive shaft.
BAIS06CCM035AVB 32
Vehicles with standard front axle
31. Remove the front wheel drive shaft guard and drive
shaft.
NOTE: The type of drive shaft fitted is dependant on type
of front axle installed.
BSD1959A 33
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32. Remove the drive shaft flange, where fitted.
BSD1917A 34
Vehicles with suspended front axle
33. Remove the front wheel drive shaft guard.
BAIL12APH156AVA 35
34. Remove the circlip (1).
Slide the drive shaft sleeve (2).
BAIL12APH182AVA 36
35. Disconnect the drive shaft bearing carrier.
BAIL12APH158AVA 37
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All vehicles
36. Using the tractor splitting equipment 380040228 In-
stall the larger wheeled part of the splitting equipment
under the front weight carrier.
BAIL12APH159AVA 38
37. Position the static part of the splitting equipment under
the transmission and secure to the transmission.
Install the smaller wheeled part of the splitting equip-
ment under the engine.
BAIL12APH160AVA 39
38. Connect the two pieces of the wheeled splitting gear
together with the alignment bar.
BAIL12APH161AVA 40
39. Support the rear of the vehicle.
BAIL07APH145AVA 41
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40. Remove the left-hand side engine to transmission se-
curing bolts.
NOTE: Repeat this step for the right-hand side.
BAIL07APH146BVA 42
41. Remove the centre engine to transmission securing
bolt (2). Remove the top left-hand engine to transmis-
sion securing bolt (1).
BAIL07APH147AVA 43
42. Separate the engine from the transmission.
BAIL12APH161AVA 44
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Engine - Connect
T6.155 NA
T6.165 NA
T6.175 NA
WARNING
Heavy objects!
Lift and handle all heavy components using lift-
ing equipment with adequate capacity. Always
support units or parts with suitable slings or
hooks. Make sure the work area is clear of all
bystanders.
ous injury.
W0398A
WARNING
Avoid injury!
Handle all parts carefully. Do not place your
hands or fingers between parts. Use Personal
Protective Equipment (PPE) as indicated in this
manual, including protective goggles, gloves,
and safety footwear.
ous injury.
W0208A
All vehicles
1. Thoroughly clean the engine to transmission mating
surfaces and apply a bead of sealant.
2. Align the front support and engine assembly to the
transmission and relocate.
Tighten to 285-315 Nm ( 210-232 lb ft).
BAIL12APH161AVA 1
3. Install the centre engine to transmission securing bolt
(2). Install the top left hand engine to transmission se-
curing bolt (1). Tighten to 285-315 Nm ( 210-232 lb ft).
BAIL07APH147AVA 2
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4. Install the left-hand side engine to transmission secur-
ing bolts.
BAIL07APH146BVA 3
5. Remove the support from the rear of the vehicle.
BAIL07APH145AVA 4
6. Disconnect the two pieces of the wheeled splitting gear
380040228 by removing the alignment bar.
BAIL12APH161AVA 5
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New holland t6.150 auto command tier 4a tractor service repair manual

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