The document provides instructions to remove the engine from a Patriot 350 sprayer. It involves disconnecting fuel, air, coolant, and exhaust lines; removing shields, ducts, and cradles; and then lifting the engine out using suitable lifting equipment. Proper safety precautions for heavy lifting and hot or pressurized components are advised.

1. Part number 48149545
SERVICEMANUAL
1/1
Patriot 350
Sprayer
SERVICE MANUAL
Patriot 350
Sprayer
Part number 48149545
English
June 2018
© 2018 CNH industrial Latin America LTDA. All Rights Reserved.

2. SERVICE MANUAL
Patriot® 350 FPT NEF engine, Tier 3, 6 cylinder [PRCYP350AJPC02841 - - ]
48149545 12/06/2018
EN

3. Link Product / Engine
Product Market Product Engine
Patriot® 350 FPT NEF
engine, Tier 3, 6 cylinder
[PRCYP350AJPC02841 - -
]
Latin America F4HE9687T*J106
48149545 12/06/2018

4. Contents
INTRODUCTION
Engine....................................................................................... 10
[10.001] Engine and crankcase ............................................................. 10.1
[10.216] Fuel tanks .......................................................................... 10.2
[10.206] Fuel filters .......................................................................... 10.3
[10.202] Air cleaners and lines .............................................................. 10.4
[10.254] Intake and exhaust manifolds and muffler ......................................... 10.5
[10.400] Engine cooling system ............................................................. 10.6
[10.310] Aftercooler.......................................................................... 10.7
[10.304] Engine lubrication system.......................................................... 10.8
Power coupling........................................................................... 19
[19.121] Pump-drive assembly .............................................................. 19.1
Front axle system ....................................................................... 25
[25.100] Powered front axle ................................................................. 25.1
[25.108] Final drive hub, steering knuckles, and shafts ..................................... 25.2
[25.122] Axle suspension control............................................................ 25.3
Rear axle system........................................................................ 27
[27.100] Powered rear axle.................................................................. 27.1
[27.124] Final drive hub, steering knuckles, and shafts ..................................... 27.2
Hydrostatic drive......................................................................... 29
[29.218] Pump and motor components...................................................... 29.1
Brakes and controls .................................................................... 33
[33.202] Hydraulic service brakes ........................................................... 33.1
[33.110] Parking brake or parking lock ...................................................... 33.2
Hydraulic systems....................................................................... 35
[35.000] Hydraulic systems.................................................................. 35.1
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5. [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
[35.703] Stabilizer hydraulic system......................................................... 35.6
[35.735] Track frame widening system ...................................................... 35.7
[35.911] Sprayer hydraulic system .......................................................... 35.8
Frames and ballasting ................................................................. 39
[39.130] Sprayer boom ...................................................................... 39.1
Steering..................................................................................... 41
[41.101] Steering control .................................................................... 41.1
[41.206] Pump ............................................................................... 41.2
[41.216] Cylinders ........................................................................... 41.3
Wheels...................................................................................... 44
[44.511] Front wheels........................................................................ 44.1
[44.520] Rear wheels........................................................................ 44.2
Cab climate control ..................................................................... 50
[50.100] Heating ............................................................................. 50.1
[50.200] Air conditioning..................................................................... 50.2
[50.300] Cab pressurizing system ........................................................... 50.3
Electrical systems....................................................................... 55
[55.100] Harnesses and connectors......................................................... 55.1
[55.019] Hydrostatic drive control system ................................................... 55.2
[55.DTC] FAULT CODES.................................................................... 55.3
Chemical applicators................................................................... 63
[63.100] Liquid fertilizer system ............................................................. 63.1
Spraying.................................................................................... 78
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6. [78.110] Chemical spraying.................................................................. 78.1
Platform, cab, bodywork, and decals............................................. 90
[90.150] Cab................................................................................. 90.1
[90.151] Cab interior......................................................................... 90.2
[90.105] Machine shields and guards ....................................................... 90.3
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7. INTRODUCTION
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1

8. INTRODUCTION
Safety rules
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 death or injury.
Throughout this manual you will find the signal words DANGER, WARNING, and CAUTION followed by special in-
structions. 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 that, if not avoided, will result in death or serious injury.
WARNING indicates a hazardous situation that, if not avoided, could result in death or serious injury.
CAUTION indicates a hazardous situation that, 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.
Machine safety
NOTICE: Notice indicates a situation that, 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 that 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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9. INTRODUCTION
Safety rules
General safety rules
Use caution when operating the machine on slopes. Raised equipment, full tanks and other loads will change the
center of gravity of the machine. The machine can tip or roll over when near ditches and embankments or uneven
surfaces.
Never permit anyone other than the operator to ride on the machine.
Never operate the machine under the influence of alcohol, drugs, or while otherwise impaired.
When digging or using ground engaging attachments be aware of buried cables. Contact local utilities to determine
the locations of services.
Pay attention to overhead power lines and hanging obstacles. High voltage lines may require significant clearance
for safety.
Hydraulic oil or diesel fuel leaking under pressure can penetrate the skin, causing serious injury or infection.
• DO NOT use your hand to check for leaks. Use a piece of cardboard or paper.
• Stop engine, remove key and relieve the pressure before connecting or disconnecting fluid lines.
• Make sure all components are in good condition and tighten all connections before starting the engine or pressur-
izing the system.
• If hydraulic fluid or diesel fuel penetrates the skin, seek medical attention immediately.
• Continuous long term contact with hydraulic fluid may cause skin cancer. Avoid long term contact and wash the
skin promptly with soap and water.
Keep clear of moving parts. Loose clothing, jewelry, watches, long hair, and other loose or hanging items can become
entangled in moving parts.
Wear protective equipment when appropriate.
DO NOT attempt to remove material from any part of the machine while it is being operated or components are in
motion.
Make sure all guards and shields are in good condition and properly installed before operating the machine. Never
operate the machine with shields removed. Always close access doors or panels before operating the machine.
Dirty or slippery steps, ladders, walkways, and platforms can cause falls. Make sure these surfaces remain clean and
clear of debris.
A person or pet within the operating area of a machine can be struck or crushed by the machine or its equipment. DO
NOT allow anyone to enter the work area.
Raised equipment and/or loads can fall unexpectedly and crush persons underneath. Never allow anyone to enter
the area underneath raised equipment during operation.
Never operate engine in enclosed spaces as harmful exhaust gases may build up.
Before starting the machine, be sure that all controls are in neutral or park lock position.
Start the engine only from the operator’s seat. If the safety start switch is bypassed, the engine can start with the
transmission in gear. Do not connect or short across terminals on the starter solenoid. Attach jumper cables as
described in the manual. Starting in gear may cause death or serious injury.
Always keep windows, mirrors, all lighting, and Slow Moving Vehicle (SMV) emblem clean to provide the best possible
visibility while operating the machine.
Operate controls only when seated in the operator’s seat, except for those controls expressly intended for use from
other locations.
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10. INTRODUCTION
Before leaving the machine:
1. Park machine on a firm level surface.
2. Put all controls in neutral or park lock position.
3. Engage park brake. Use wheel chocks if required.
4. Lower all hydraulic equipment — Implements, header, etc.
5. Turn off engine and remove key.
When, due to exceptional circumstances, you would decide to keep the engine running after leaving the operator’s
station, then the following precautions must be followed:
1. Bring the engine to low idle speed.
2. Disengage all drive systems.
3. WARNING
Some components may continue to run down after you disengage drive systems.
Make sure all drive systems are fully disengaged.
Failure to comply could result in death or serious injury.
W0113A
Shift the transmission into neutral.
4. Apply the parking brake.
General maintenance safety
Keep area used for servicing the machine clean and dry. Clean up spilled fluids.
Service machine on a firm level surface.
Install guards and shields after servicing the machine.
Close all access doors and install all panels after servicing the machine.
Do not attempt to clean, lubricate, clear obstructions or make adjustments to the machine while it is in motion or while
the engine is running.
Always make sure working area is clear of tools, parts, other persons and pets before you start operating the machine.
Unsupported hydraulic cylinders can lose pressure and drop the equipment causing a crushing hazard. Do not leave
equipment in a raised position while parked or during service, unless securely supported.
Jack or lift the machine only at jack or lift points indicated in this manual.
Incorrect towing procedures can cause accidents. When towing a disabled machine follow the procedure in this man-
ual. Use only rigid tow bars.
Stop the engine, remove key and relieve pressure before disconnecting or connecting fluid lines.
Stop the engine and remove key before disconnecting or connecting electrical connections.
Scalding can result from incorrect removal of coolant caps. Cooling system operates under pressure. Hot coolant
can spray out if a cap is removed while the system is hot. Allow system to cool before removing cap. When removing
a cap turn it slowly to allow pressure to escape before completely removing the cap.
Replace damaged or worn tubes, hoses, electrical wiring, etc.
Engine, transmission, exhaust components, and hydraulic lines may become hot during operation. Take care when
servicing such components. Allow surfaces to cool before handling or disconnecting hot components. Wear protective
equipment when appropriate.
When welding, follow the instructions in the manual. Always disconnect the battery before welding on the machine.
Always wash your hands after handling battery components.
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11. SERVICE MANUAL
Engine
Patriot® 350 FPT NEF engine, Tier 3, 6 cylinder [PRCYP350AJPC02841 - - ]
48149545 12/06/2018
10

12. Engine - Engine and crankcase
Engine - Torque
SOIL17SP00450AA 1
Reference Description Torque Values
(1) Motor mount bolts 310 – 380 N·m (229 – 280 lb ft)
(2) Engine air tube clamps 16 – 18 N·m (12 – 13 lb ft)
(3) Fan bolts 9 – 11 N·m (80 – 97 lb in)
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13. Engine - Engine and crankcase
Engine - Remove
CAUTION
Heavy object!
The component is heavy. Use care not to drop the component when installing, removing, or handling.
Failure to comply could result in minor or moderate injury.
C0095A
DANGER
Heavy objects!
Lift and handle all heavy components using lifting 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 will result in death or serious injury.
D0076A
Prior operation:
Engine hood – Removal Engine hood - Remove (90.105)
Prior operation:
Oil reservoir – Removal Oil reservoir - Remove (35.300)
1. On the right-hand side of the machine, remove the
cover (1) from the battery compartment.
SOIL17SP00401AA 1
2. Disconnect both battery cables from the batteries. Start
with the negative cable.
SOIL17SP00403AA 2
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14. Engine - Engine and crankcase
3. Close the valve (1) to cut the fuel supply.
SOIL17SP00473AA 3
4. Disconnect the hoses (1) to (4) from the deaeration
tank.
NOTE: Label the position of these hoses to facilitate their
reconnection.
NOTICE: Cover the connection points to avoid the entry of
dirt.
SOIL17SP00452AA 4
5. Remove cap screws (1).
6. Remove the deaeration tank (2) together with the cra-
dle (3).
SOIL17SP00466AA 5
7. Disconnect the air filter restriction sensor (1).
SOIL16SP00049AA 6
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15. Engine - Engine and crankcase
8. Loosen the clamp that secures the air tube at the end
of the filter housing (1).
9. Loosen the fastening clamp at the turbocharger (2).
10. Remove the air duct (3).
NOTICE: Cover the connection points to avoid the entry of
dirt.
SOIL16SP00049AA 7
11. Remove the bolts that secure the air filter housing (1),
installed under the rails (2).
12. Remove the complete filter assembly. Unseat the duct
(3) from the support plate (4).
SOIL16SP00041AA 8
13. Loosen the clamp (1). Remove the tube (2) of the
muffler (3).
14. Loosen the nuts of the clamp that secures the muffler
(4). Remove the muffler (3).
SOIL17SP00456AA 9
15. Remove cap screws (1).
16. Remove the muffler cradle (2).
SOIL16SP00050AA 10
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16. Engine - Engine and crankcase
17. Remove the following ducts:
• Interconnection of the intercooler and the intake
manifold (1).
• Interconnection of the turbocharger and the inter-
cooler (2).
• Interconnection of the engine and the radiator (3).
• Interconnection of the turbocharger and the muffler
(4).
NOTICE: Cover the connection points to avoid the entry of
dirt.
SOIL16SP00039AA 11
18. Loosen the hose clamp at the engine (1). Loosen the
clamps that secure the hose to the cradle (2). Remove
the hose (3) from the cradle.
SOIL17SP00462AA 12
19. With a suitable lifting device, support the cradle as-
sembly (1).
NOTE: Also use the eye bolts (2) for lifting.
20. Remove the bolts (3) on both sides of the cradle (1).
21. Remove the cradle (1).
SOIL16SP00040AA 13
22. Remove cap screws (1).
23. Remove the radiator fan shield (2).
SOIL16SP00042AA 14
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17. Engine - Engine and crankcase
24. Loosen the bolts that secure the coolant overflow tank
cradle (1). Remove the cradle.
SOIL17SP00459AA 15
25. Remove the bolts (1) and washers (2) that secure the
fan shroud (3) on both sides. Move the fan shroud so
that you can access the bolts of the helix.
SOIL17SP00463AA 16
26. Remove the bolts (1) that secure the radiator fan.
SOIL17SP00464AA 17
27. Disconnect the heater hose (1).
NOTICE: Cover the connection points to avoid the entry of
dirt.
SOIL16SP00048AA 18
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18. Engine - Engine and crankcase
28. Disconnect the alternator cables, in this order:
• Ground (1).
• Positive (2).
• Exciter (3).
SOIL16SP00034AA 19
29. Disconnect the hoses (1), (2), and (3) secured on the
engine, at the bottom of the radiator.
NOTICE: Cover the connection points to avoid the entry of
dirt.
SOIL16SP00047AA 20
30. Disconnect the cable (1) and the wiring harness (2)
from the cold start relay (3).
SOIL16SP00036AA 21
31. Disconnect the starter motor cables, in this order:
• Negative (1).
• Ground (2).
• Positive (3).
SOIL16SP00035AA 22
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19. Engine - Engine and crankcase
32. Remove the radiator fan (1).
SOIL16SP00055AA 23
33. Disconnect the positive cable from the auxiliary cold
start device (1).
SOIL16SP00031AA 24
34. Remove the hardware that secures the hoses of the
air-conditioning compressor to the frame of the ma-
chine, to allow the removal of the compressor.
35. Remove cap screws (1) e (2).
36. Remove the screw (3).
37. Remove the compressor (4) and the belts (5). Pay
attention to the weight of the component.
NOTICE: Handle the compressor safely, so as to not dam-
age the refrigerant fluid hoses.
SOIL16SP00038AA 25
38. Disconnect the fuel hoses (1) and (2).
NOTICE: Cover the connection points to avoid the entry of
dirt.
39. Disconnect the connectors (3) to (6) from the main
wiring harness.
40. Remove the clamps (7) to detach the main wiring har-
ness from the engine.
SOIL16SP00037AA 26
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20. Engine - Engine and crankcase
41. Remove the handrail assembly (1) on the left-hand
side of the machine.
SOIL16SP00046AA 27
42. Mount a suitable lifting device on an overhead crane.
43. Connect the lift chains to the engine hoist eyelets (1).
SOIL16SP00043AA 28
44. Remove the bolts (1) from the front pads.
SOIL16SP00044AA 29
45. Remove the bolts (1) from the rear pads.
46. Lift the engine. Remove the engine through the left-
hand side of the machine.
SOIL16SP00045AA 30
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21. Engine - Engine and crankcase
Engine - Install
CAUTION
Heavy object!
The component is heavy. Use care not to drop the component when installing, removing, or handling.
Failure to comply could result in minor or moderate injury.
C0095A
DANGER
Heavy objects!
Lift and handle all heavy components using lifting 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 will result in death or serious injury.
D0076A
Prior operation:
Engine - Remove (10.001)
1. Position the engine on the cradle of the machine. Lift
and move through the left-hand side of the machine.
SOIL16SP00064AA 1
2. Install the handrail assembly (1) on the left-hand side
of the machine.
SOIL16SP00046AA 2
3. Install the bolts (1) of the rear pads. Tighten slightly.
SOIL16SP00045AA 3
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22. Engine - Engine and crankcase
4. Install the bolts (1) of the front pads. Tighten slightly.
5. Torque the bolts of the front and rear pads to 234 –
260 N·m (173 – 192 lb ft) to finalize the attachment.
SOIL16SP00044AA 4
6. Disconnect the lift device from the eyelets (1).
SOIL16SP00043AA 5
7. Install the clamps (1) at proper points to attach the main
wiring harness properly to the engine.
8. Connect the connectors (2) to (5) of the main wiring
harness.
9. Connect the fuel hoses (6) and (7).
SOIL16SP00037AA 6
10. Install the air-conditioning compressor (1) on the cra-
dle (2). Install the bolt and nut (3).
NOTE: Do not fully tighten the nut (3).
11. Install the belt (4).
12. Adjust the tilt of the compressor (1) to obtain the cor-
rect tension of the belt (4). Install and tighten the bolts
(5) and (6).
13. Fully tighten the nut (3).
NOTE: Check whether the belt (4) is correctly tensioned.
14. Secure the compressor hoses at the proper points on
the frame of the machine. Install the original fasten-
ers.
SOIL16SP00038AA 7
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23. Engine - Engine and crankcase
15. Apply LOCTITE® 7649™ PRIMER N and LOCTITE®
243™ to the threads of the radiator fan fastening bolts
(1).
16. Position the bolts (1) on the radiator fan.
17. Install the radiator fan on the engine. Tighten the bolts
(1) to a torque of 52 – 61 N·m (38 – 45 lb ft)
SOIL17SP00464AA 8
18. Position the fan shroud (1) in its housing. Install the
washers (2) and the fastening bolts (3) of the fan (1)
on both sides.
SOIL17SP00463AA 9
19. Position the coolant reservoir (1). Install the fastening
bolts (2)
SOIL17SP00459AA 10
20. Install the radiator fan shield (1) with the bolts (2).
SOIL16SP00042AA 11
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24. Engine - Engine and crankcase
21. Correctly route and then connect the positive cable
from the auxiliary cold start device (1).
SOIL16SP00031AA 12
22. Connect the starter motor cables, in this order:
• Ground (1).
• Negative (2).
• Positive (3).
SOIL16SP00035AA 13
23. Connect the cable (1) and the wiring harness (2) to
the cold start relay (3).
SOIL16SP00036AA 14
24. Connect the hoses (1), (2), and (3) to the engine, at
the bottom of the radiator.
SOIL16SP00047AA 15
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26. Engine - Engine and crankcase
25. Connect the alternator cables, in this order:
• Ground (1).
• Exciter (2).
• Positive (3).
SOIL16SP00034AA 16
26. Connect the heater hose (1).
SOIL16SP00048AA 17
27. Suspend the cradle assemble (1) over the engine.
NOTE: Use the eye bolts (2) for lifting.
28. Lower the cradle (1). Secure to the radiator frame.
Install the bolts (3) on both sides.
SOIL16SP00040AA 18
29. Install the following ducts:
• Interconnection of the intercooler and the intake
manifold (1).
• Interconnection of the turbocharger and the inter-
cooler (2).
• Interconnection of the engine and the radiator (3).
• Interconnection of the turbocharger and the muffler
(4).
SOIL16SP00039AA 19
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27. Engine - Engine and crankcase
30. Install the muffler cradle (1) with the bolts (2).
SOIL16SP00050AA 20
31. Position the entire air filter assembly (1) over the rails
(2). Fit the duct (3) on the support plate (4)
32. Attach the air filter compartment (1). Install the bolts
underneath the rails (2).
SOIL16SP00041AA 21
33. Install the air duct (1) to interconnect the filter com-
partment and the turbocharger.
34. Connect the air filter restriction sensor (2)
SOIL16SP00049AA 22
35. Position the muffler tube (1) in its housing. Position
the clamps (2) and their nuts (3) to attach the muffler.
36. Position the tube (4) at the end of the muffler. Secure
the tube with the tube clamp (5).
SOIL17SP00456AA 23
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28. Engine - Engine and crankcase
37. Install the deaeration tank (1) and the cradle (2). In-
stall the bolts (3) to assemble.
SOIL16SP00052AA 24
38. Connect the hoses (1) to (4) to the deaeration tank.
SOIL17SP00452AA 25
39. Open the fuel supply valve (1).
40. Install the casing that masks the fuel tank (2).
SOIL17SP00465AA 26
41. Connect both battery cables from the batteries. Start
with the positive cables.
SOIL17SP00403AA 27
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