New Holland H8040 Windrower Service Manual
1,487 pages · Publication 84211418
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- Models
- H8040
- Serial coverage
- PIN #Y8G661200 and above
- Manual type
- Service Manual
- Pages
- 1,487
- Publication
- 84211418
- Condition
- Brand new

What's inside
From the manual's own table of contents: 298 sections, 670 entries. See sample pages (PDF, 459 KB)
Show all 298 sections
Engine2 topics
- Removal
- Installation
Fuel System1 topic
- Injection System Bleeding
Fuel Tanks1 topic
- Install
Air Filter1 topic
- Inspection
Planetary Gearbox Drive2 topics
- Disassembly
- Assembly
Motors1 topic
- Variable Displacement Motor
Oil Flow2 topics
- Neutral
- Forward / Reverse
Solenoid Valve ( 2 - speed Drive Motor Only )2 topics
- Low - range Operation
- High - range Operation
Relief Valve1 topic
- Operation
Overheating Transmissions1 topic
- Loss Of Propulsion
Pressure Testing2 topics
- Port Locations
- Charge Pressure
Charge Pressure System Test2 topics
- Tandem Pump Charge Pressure Test
- Complete Charge System Test
High Pressure Relief Valve Test6 topics
- Gage Port and Relief Valve Locations
- Pressure Port Locations
- Case Pressure Test ( Pump )
- Case Pressure Test ( Motor )
- Suction Test
- Case Flow Test
Ground Speed Circuit2 topics
- Troubleshooting
- Ground Speed Display Does Not Function
Troubleshooting Charts4 topics
- Windrower Will Not Shift Into High Range
- Windrower Will Not Shift Into Low Range
- Charge Pump
- Hydrostatic System
Explanation Of Terms Used In Failure Analysis4 topics
- Lack Of Lubrication
- Operating At Excessive Temperature Levels
- Cavitation
- Overspeeding Of the Unit
Parts Worn Or Scored From Contamination2 topics
- Abrasive Contaminants
- Plates Scored From Water In Oil ( Non - particle Contaminants )
Tandem Pump13 topics
- Bottom View
- Rear Half Pump Breakdown
- Front Half Pump Breakdown
- Shaft Seal Replacement
- Seal Installer
- Charge Pump Removal
- Charge Pump Inspection
- Charge Pump Assembly
- O Ring Seals
- Trunnion Seal ( Control Shaft Side )
- Trunnion Cover ( Plain )
- Tandem Pump Removal
- Tandem Pump Installation
Ground Drive Motor1 topic
- Inspection / Parts Breakdown
Theory of Operation 0.0.01 topic
- TeSting . 0
Propulsion Rotary Position Sensor (R-23)2 topics
- TeStiNg . 2
- Removal
Rotating, Stationary, and Primary Disc Assembly1 topic
- Installation
Ground Drive1 topic
- Circuit Diagrams
Header Drive1 topic
- Circuit Diagrams
Theory of Operation2 topics
- Header Lift 2.0
- Circuit Diagrams
Header Tilt1 topic
- Circuit Diagrams
Auxiliary Engine mounted Hydraulic Pump (Optional)2 topics
- Service PartS 0.0
- Valve Identification Codes
Component Identification and Location5 topics
- Right-hand (RH) View
- Front VieW
- Rear ViOW 2
- Bottom View
- Back View (Hidden Against Mounting Plate)
Auxiliary Control Valve (Speed Control) Manifold2 topics
- Service PartS 0.0
- Valve Identification Codes
Auxiliary control manifold3 topics
- Component Identification and Location
- Right-Hand (RH) View
- Back View (Hidden Against Mounting Plate)
Header Control Valve Manifold4 topics
- Service PartS 0.0
- Valve Identification Codes
- Component Identification and Location
- Right-hand (RH) View
Main Control Manifold Valves6 topics
- Two-way Two-position (Normally Closed) Poppet Valves
- Three-way Two-position Spool Valve
- Two-way Two-position (Normally Open) Poppet Valve
- (Normally Open) Pressure Reducing/Relieving Valves
- (Normally Open) Solenoid-operated Relief Valves
- (Normally Closed) Solenoid-operated Proportional Flow Control
Main Manifold — Cartridge Torque Requirements2 topics
- Replacement
- Installation
Solenoid Coils2 topics
- Removal
- Installation 6.0.0
Cartridge Valves (Non-solenoid-operated)3 topics
- Direct-acting Flow Control Needle Valve
- Pilot-operated Relief Valve
- Differential-Pressure-Sensing Valve
Needle Valve (AD) and Piloted Relief Valves3 topics
- Replacement
- Adjustment 2.0.0.0
- Inspection 2.0
Header Drive Pump1 topic
- Removal
Splitter Gear Box (Below PIN 35065720)2 topics
- Disassembly
- ASSEMDIY 2
Splitter Gear Box (PIN 35065720 and later)4 topics
- Disassembly
- ASSEMDIY 2
- Assembly
- Installation
Auxiliary Engine Mounted Hydraulic Pump (optional)1 topic
- Installation
Maintenance1 topic
- Cooling Circuit Bypass Pressure
General 2.05 topics
- Reduced System Pressure
- Reduced Hydraulic Flow
- Excessive Noise
- Overheating
- Power LOSS
Parts Evaluation 2.0.0.04 topics
- Discoloration
- Scratches or GroOVeS
- Rework
- Repeat Failures 1.0.0
Service Techniques2 topics
- General
- Oil Level
Tilt Cylinder3 topics
- Removal
- Inspection 2.0
- ASSEMDIY 2
Lift Cylinders 2.0.02 topics
- Inspection
- Assembly
Zero-Leak PUGS1 topic
- Removal
Hydraulic Reservoir Replacement2 topics
- Removal
- Installation
Header Drive System1 topic
- Further Troubleshooting Tips
Axle Extension Position4 topics
- Installation 6.0
- Removal
- Inspection
- Installation 0.0
Rear Axle Extension3 topics
- Removal
- Inspection 0.2
- Installation 2.0.0
Axle Tube and Center Pivot Pin3 topics
- Removal
- Inspection 0.0
- Installation 2.0
Wheel, Axle Shaft and Hub1 topic
- Inspection
Axle Support Fork3 topics
- Removal
- Inspection
- Installation 0.0
Extension6 topics
- Removal
- Inspection
- Installation 0.0
- Removal
- Inspection 2.0
- Installation 0.0.0
Axle Tubes and Pivot Pins3 topics
- Removal 1.0
- Inspection
- Installation 0
Air Conditioning Filters1 topic
- Removal/Replacement
Recirculation Filter1 topic
- Cleaning With Air 2.0.0
Expansion Valve2 topics
- Valve ComponentS
- Operation
Cab Environment2 topics
- Standard Temperature Control
- Deluxe HVAC Control - Optional Factory Installed Only
Climate Control4 topics
- Automatic Temperature Control (ATC)
- Troubleshooting the Temperature Control System
- High-pressure Cutout Switch (S-40)
- Low-pressure Cutout Switch (S-39) 2.0
Preliminary Troubleshooting and Testing1 topic
- Operational Checks
Diagnosis Charts — Climate Control System1 topic
- Test Procedure: Stabilizing the System
Pressure/Temperature Relationships1 topic
- Preventing Mixing of Service Equipment
Refrigerant Extraction and Recycling Equipment3 topics
- Using Extraction Equipment
- Using Recycling Equipment
- Recycling Vs. Reclaiming
Containment of Air Conditioning Refrigerants6 topics
- Using a Manifold Gauge Set
- Checking Refrigerant for Excess Air
- Containers for Storing Recycled Refrigerant
- Disposal of Empty or Near-empty Disposable Containers
- Contaminants
- Pressure Diagnosis
Receiver/Drier5 topics
- Installation £00
- Installation
- Disassembly
- ASSEMbIY 2
- Installation 6.0.0
Expansion Valve2 topics
- Removal
- Installation
Inspection and Cleaning2 topics
- Removal
- Installation 0.0
Evaporator Core3 topics
- Removal
- Installation 0.0
- Installation 0.0.0
Temperature Sensor4 topics
- Removal
- Installation 0.0
- Removal
- Installation 0.0
Clutch and Seal Replacement1 topic
- Removal
Electrical Terms and Equipment1 topic
- Definitions
Rocker Switches1 topic
- Momentary Rocker Switches
Circuit Breakers 2.2.01 topic
- Location of Circuit Breakers
FUSES 21 topic
- Fuse Panel Identification Tables
Basic Circuitry/Component Testing4 topics
- Continuity Test for Open Circuits
- Continuity Test for Short to Ground
- Resistance Test for Electrical Components
- Measuring Voltage
Diodes1 topic
- Diode Test Procedure
Electro-hydraulic Solenoid Valve Coils3 topics
- Test Procedure
- Operational Check
- Test Procedure
Fuses, Relays, and Switches1 topic
- Switch and Relay Contacts
Wire Harness Identification1 topic
- Wire Color Codes
Function Monitoring, Machine Configuration, and Diagnostics Menus1 topic
- Selectable Functions Monitoring
Warning Mode5 topics
- Critical Warning Displays - Automatic Shutdown
- Warning Displays - No Shutdown
- Non-Critical Warning Displays
- Electronic Fault Codes
- System Monitoring
XCM Function and Configure Select Switches2 topics
- Operation
- Troubleshooting
Fault #19 - No Data from Control Module2 topics
- Testing Display Data Line
- Testing ATC Control Switch and Mode Control Switch
Compressor Magnetic Clutch1 topic
- Testing Clutch Circuit
Road Lights, Tail Lights and Console Light Circuits1 topic
- Troubleshooting
Work Lights Circuits 2.02 topics
- Operation
- Troubleshooting
Exit Lighting (Left Side Stubble Light)1 topic
- Operation
Console and Dome Lights Circuits4 topics
- Operation
- Troubleshooting
- Introduction
- Engine Functions for the XCM
Fuel Level Sender Circuit3 topics
- 4-Line Display - Engine Coolant Temperature Scale
- A-Pillar Display - Engine Coolant Temperature Scale
- Troubleshooting
Engine Fuel Solenoid Circuit1 topic
- Troubleshooting
Engine Oil Pressure Sensor Circuit1 topic
- Troubleshooting
Cold-Start Injection Advance Circuit (KSB)1 topic
- Fuel Injection Pump Harness Connections
Preheat Circuit (If Equipped)4 topics
- Size and Rating
- Application and Installation
- Service History
- Key Off? Current Drain
Charging the Battery5 topics
- Determining Battery Charge Procedure
- Slow Charge Procedure: For Batteries with Charges Below 11.0V
- Selecting Battery Charging Method
- Slow Charge Procedure
- Battery Charging Precautions
Battery Specifications 2.05 topics
- Charging System Excitation Circuit Operation
- Alternator and Voltage Regulator
- Maintaining the Alternator
- Alternator Connections
- Alternator and Voltage Regulator Precautions
Belts - Engine8 topics
- Belt Inspection (check every 1200 hours)
- Compressor Belt Replacement
- Drive Belt Replacement
- Welding On the Machine
- Troubleshooting
- Testing the Alternator 2.0
- Alternator Removal
- Troubleshooting
Hydraulic Charge Pressure Switch1 topic
- Troubleshooting
Seat Occupied Circuit 2.01 topic
- Troubleshooting
Master Hydraulic Solenoid Circuit4 topics
- Fuel InputS
- Header Inputs
- Preheat Inputs
- Header OutputS
SPN/FMI Code Charts4 topics
- Fault Code - 101-03 Oil Pressure Switch Shorted to High Source
- Fault Code - 101-04 Oil Pressure Switch Shorted to Low Source
- Fault Code - 102-03 Air Filter Restriction Switch Shorted to High Source
- Fault Code - 104-04 Engine Coolant Temp Sensor Shorted to Low Source
Hydraulic Fault Codes53 topics
- Fault Code - 001-03 Hydraulic Charge Pressure Switch Shorted to High Source
- Shorted to High Source
- Fault Code - 404-03 MFH Position Sensor Shorted to High Source
- Fault Code - 404-04 MFH Position Sensor Shorted to Low Source
- Fault Code - 404-14 MFH Position Sensor Special Instructions
- Fault Code - 405-03 Pintle Arm Position Sensor Shorted to High Source
- Fault Code - 405-04 Pintle Arm Position Sensor Shorted to Low Source
- Shorted to Low Source
- Shorted to High Source
- Shorted to Low Source
- Pot B Needs Calibration
- Fault Code — 408-03 MFH Neutral Switch Shorted to High Source
- Fault Code — 408-07 MFH Neutral Switch Mechanical Out Of Range
- Fault Code - 409-03 Park Brake Switch Shorted to High Source
- Fault Code - 411-13 Propulsion Cylinder Position Pot A Needs Calibration
- Fault Code - 412-13 Propulsion Cylinder Position Pot A Needs Calibration
- Fault Code - 413-13 Propulsion Cylinder Position Pot A Needs Calibration
- Fault Code - 414-13 Propulsion Cylinder Position Pot B Needs Calibration
- Fault Code - 415-13 Propulsion Cylinder Position Pot B Needs Calibration
- Fault Code - 416-13 Propulsion Cylinder Position Pot B Needs Calibration
- Fault Code - 418-03 MFH Position Sensor Shorted to High Source
- Fault Code - 418-04 MFH Position Sensor Shorted to Low Source
- Fault Code - 418-13 MFH Position Sensor Needs Calibration
- Fault Code - 419-03 MFH Position Sensor Shorted to High Source
- Fault Code - 419-04 MFH Position Sensor Shorted to Low Source
- Fault Code — 419-07 MFH Position Sensor Mechanical Out Of Range
- Fault Code - 419-13 MFH Position Sensor Needs Calibration
- Fault Code - 420-03 MFH Position Sensor Shorted to High Source
- Fault Code - 420-04 MFH Position Sensor Shorted to Low Source
- Fault Code — 420-07 MFH Position Sensor Mechanical Out Of Range
- Fault Code - 420-13 MFH Position Sensor Needs Calibration
- Fault Code - 421-03 MFH Position Sensor Shorted to High Source
- Fault Code - 421-04 MFH Position Sensor Shorted to Low Source
- Fault Code - 421-13 MFH Position Sensor Needs Calibration
- Shorted to High Source
- Shorted to Low Source
- Fault Code - 424-13 Propulsion Forward Coil Needs Calibration
- Shorted to High Source
- Shorted to Low Source
- Fault Code - 425-13 Propulsion Forward Coil Needs Calibration
- Shorted to High Source
- Shorted to Low Source
- Fault Code - 426-13 Propulsion Reverse Coil Needs Calibration
- Shorted to High Source
- Shorted to Low Source
- Fault Code - 427-13 Propulsion Reverse Coil Needs Calibration
- Shorted to High Source
- Fault Code - 431-03 MFH Position Sensor R-18 Shorted to High Source
- Fault Code - 432-03 MFH Position Sensor R-18 Shorted to High Source
- Fault Code - 433-03 Propulsion Cylinder Shorted to High Source
- Fault Code - 434-03 Propulsion Cylinder Shorted to High Source
- Fault Code — 435-03 Propulsion Enable Relay K-35 Shorted to High Source
- Fault Code — 435-04 Propulsion Enable Relay K-35 Shorted to Low Source
PTO Fault Codes9 topics
- Fault Code - 200-12 Header Speed Sensor Bad Intelligent Device
- FM Harness (Rear)
- FM Harness (Engine RH)
- LL and RL Harnesses (Lighting)
- CM Harness (Electrical Panel)
- CM Harness (Seat and Right Hand Console)
- RM Harness (Inside Roof)
- Harness (Steering Column)
- Troubleshooting
Cold Start (Thermostart)2 topics
- Circuit Description
- Switch Removal
Deluxe Mirrors 106 topics
- Circuit Description
- Switch Removal
- Switch Connectors and Circuitry .. 2.0.0.0
- Accessing the Outer Roof (OR) Harness
- Roof Panel Installation
- Wiring Harness Routing
Beacon Mount6 topics
- Switch Removal
- Connectors and Circuitry
- Accessing the Outer Roof (OR) Harness
- Roof Panel Installation
- Wiring Harness Routing and Connections
- Troubleshooting
Adjustable Windrow Shields3 topics
- Circuit Description
- Windrow Shields Narrow (Close)
- Position Sensor Potentiometer Test
Sickle Header Drive Adapter (2300 and HS Series)5 topics
- HarneSSES
- Standard Harnesses
- Optional Harnesses
- Wire Harness Routing
- Circuit Identification
Electrical System - Fuse and Relay2 topics
- Removal
- Inspection
Header to Machine Connector1 topic
- Theory of Operation
Diagnostic Charts 0.0.01 topic
- Removal
Fore/Aft Position 0.0.0.01 topic
- Cleaning the Seat Belt
Overhaul3 topics
- Replacing the Seat Belt
- Removing the Seat from the Seat Base
- Disassembling the Seat
CuShioNS 2.02 topics
- Removing Bottom Seat Cushion
- Disassembly of Seat Suspension
Rubber Bumpers1 topic
- Inspection of the Seat Suspension Components
Release Valve/Solenoid1 topic
- Inspection
Air COMpressor1 topic
- Inspection
Damping Shock Absorber1 topic
- Inspection 2.0
Scissors Suspension1 topic
- Inspection
Cab Door2 topics
- Removal
- Installation 0.0
Cab Door Handle1 topic
- Disassembly
Cab Floor Mat2 topics
- Removal 1
- Inspection
Cab Suspension4 topics
- Remove and Replace - Front Cab Mounts
- Remove and Replace - Rear Cab Suspension
- Removal
- Installation 0.0
Overhead Switches2 topics
- Removal/Installation
- Removal/Installation 2.0.0
Wiper Motor/Washer2 topics
- Removal
- Installation 6.0
Steering Column3 topics
- Cover Removal
- Column Removal
- Column Installation
Cab Roof2 topics
- Inspection
- Installation 2.0.0
Multi-Function Handle (MFH)2 topics
- Removal
- Installation 2.0.0
Inside this manual
Real pages from this service manual (1,487 pages). Open the sample pages (PDF, 459 KB)
- Color page, page 729
This is a service manual
Here's how it compares to the other manual types.
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 1,487 pages
Quantity one is the manual described above.
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Other editions and similar models
Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).