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Part of the New Holland Repair Manuals.
Ready to tear down the undercarriage or troubleshoot the mechatro control system on your hydraulic excavator? This 940-page New Holland E80MSR workshop manual PDF (OEM #604.13.421) gives you the exact factory teardown and rebuild procedures for the entire machine. Inside, you get detailed hydraulic schematics mapping out the boom raise conflux circuits, plus full electrical wiring diagrams to trace controller faults. Open to the troubleshooting section to find step-by-step diagnostic charts for the engine, travel system, and upper slewing body. Lock down the boom cylinder piston nut to exactly 3000 N·m (2210 lbf·ft) and verify your main relief valve set pressure is hitting 29.4 MPa at 28 L/min before sending the rig back out. Stop wasting shop hours guessing at diagnostic codes. Grab this bookmarked download, pull it up on your shop tablet, and get your excavator digging again.
What's Inside This New Holland E80MSR Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety Precautions | 5-10 | General Safety Information |
| Outline | 11-18 | Hydraulic Equipment, Electrical Equipment, Hydraulic Parts, Welding Repair, Environmental Measure, International Unit Conversion System |
| Specifications | 19-32 | Name of Components, Machine Dimensions, Weight of Components, Transportation Dimension and Weight, Specifications and Performance, Type of Crawler, Type of Bucket |
| Attachment Dimensions | 33-54 | Boom, Arm, Bucket, Dozer, Swing |
| Tools | 55-70 | Torque Specifications for Capscrews & Nuts, Screw and Tool Sizes, Torque Specifications for Joints and Hoses, Torque Specifications for Sleeve Type Tube Fittings, Plugs |
| Standard Maintenance Time Schedule | 71-88 | Standard Maintenance Time Schedule for Excavator, Standard Working Time Table for the Maintenance of Engine |
| Maintenance Standard and Test Procedure | 89-114 | How to Use Maintenance Standard and Precautions, Performance Inspection Standard Table, Measurement of Engine Speed, Measurement of Hydraulic Pressure |
| Mechatro Control System | 115-136 | Summary of Mechatro Control System, Boom Raise Conflux Mechatro Control System, Slewing Cut Valve Control Mechatro Control System, Arm in / Out Conflux Mechatro Control System |
| Hydraulic System | 137-196 | Summary, Hydraulic Circuits and Component Models |
| Electrical System | 197-236 | Electrical Circuit Diagram and Equipment List, Harness, Controller Assy, Instrument Panel Assy, Upper Electrical Assy, Engine Harness Assy |
| Components System | 237-354 | Hydraulic Components, Electric Equipment |
| Air-Conditioner System | 355-392 | Construction and Piping, Construction of Main Components, Function, Disassembly and Assembly, Charging Refrigerant, Electric Circuit, Troubleshooting |
| General Disassembly and Assembly | 393-396 | Attachment, Hydraulic Cylinder, Upper Slewing Structure, Hydraulic Pump, Control Valve, Pilot Valve (Att), Pilot Valve (Travel), Slewing Motor |
| Attachments | 397-438 | Attachment and Component, Bucket, Arm, Boom, Swing, Dozer, Cylinder |
| Upper Slewing Body | 439-550 | Cab, Operator Seat, Battery, Instrument Panel, Counterweight, Guard, Under Cover, Air Cleaner |
| Travel System | 551-646 | Crawler, Upper Roller, Lower Roller (Track Roller), Front Idler (Idler Adjuster Assy), Sprocket, Travel Motor, Slewing Bearing |
| Troubleshooting (Mechatro Control) | 647-656 | Outline, Table of Actuator for Troubleshooting : Mechatro Control, Troubleshooting Summarized : Mechatro Control, Check Point for Mechatro System |
| Troubleshooting (Hydraulic System) | 657-676 | Trouble Diagnosis : Hydraulic, Troubleshooting |
| Troubleshooting (Electric) | 677-700 | Trouble Diagnosis Table : Electric, Controller Error Code Display, Service Diagnosis |
| Troubleshooting (Engine) | 701-712 | Trouble Diagnosis : Engine, Troubleshooting |
| Engine | 713-940 | Cylinder Head Cover, Rocker Arm Shaft Bracket, Crankshaft Bearing Cap, Connecting Rod Bearing Cap, Crankshaft Damper Pulley, Flywheel, Oil Pan |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Boom cylinder Piston nut tightening torque | 3000 N·m (2210 lbf·ft) | p. 430 |
| Boom cylinder Setscrew tightening torque | 56.9 N·m (42 lbf·ft) | p. 430 |
| Suction port (B2) hose connection tightening torque | 4.4 N·m (3.3 lbf·ft) | p. 463 |
| Main relief valve set pressure | 29.4 MPa (4270 psi) at 28 L/min (7.4 gal/min) | p. 259 |
| Over load relief valve set pressure | 32.9 MPa (4760 psi) at 20 L/min (5.3 gal/min) | p. 259 |
| Main pump displacement capacity | 31.4 X 2 cm3/rev | p. 239 |
| Main pump max. pressure | 29.4 MPa (4270 psi) | p. 239 |
| O-ring sealing type piping joint tightening torque (PF 1/8) | 17±2 N•m (12±1 lbf•ft) | p. 60 |
| O-ring sealing type piping joint tightening torque (PF 1/4) | 36±2 N•m (27±1 lbf•ft) | p. 60 |
| Pilot pressure (MAX) | 3.5 MPa (508 psi) | p. 259 |
| Pilot relief valve pressure | about 3.43MPa (500psi) | p. 662 |
| Main relief valve pressure (P1,P2) | 29.4MPa (4270psi) | p. 662 |
New Holland E80MSR Common Problems This Manual Covers
New Holland E80MSR hydraulic pump failure with pressure relief valve destroyed and metal debris in the tank
Start at the hydraulic troubleshooting diagnosis on page 657 and drain the tank to check for metal shavings confirming pump failure. Inspect the suction hose O-ring at the pump inlet for cuts or hardening; a bad seal draws air into the supply line and aerates the oil, starving the pump. Torque the suction port (B2) hose connection to 4.4 N·m (3.3 lbf·ft) on reassembly and verify the main relief valve holds 29.4 MPa before restarting, per the spec on page 259.
Manual Section: Hydraulic System Troubleshooting p. 657Hydraulic pressure drops off or cylinders stick partway through a stroke under load
Check the pressure diagnosis chart on page 657 first. A relief valve that sticks open from trapped debris will bleed pressure to tank before the cylinder finishes its stroke. Pull the main relief valve and inspect the poppet and seat for scoring, then confirm set pressure returns to 29.4 MPa (4270 psi) at 28 L/min once cleaned and reseated. Adjust the lock nut to 19.6 N·m (14 lbf·ft) per the spec on page 98.
Manual Section: Hydraulic System Troubleshooting p. 657Hydraulic oil runs hot and the machine loses power in all functions after a couple hours of work
Verify oil temperature against the performance inspection standard on page 99; normal running range is 45 to 55°C (113 to 131°F). Anything higher points to aerated oil recirculating heat or a pump working harder to compensate for internal wear. Check the tank sight gauge against the 80 L capacity noted on page 459, drain and refill with clean fluid, and confirm no air is entering through the suction line fittings before returning to work.
Manual Section: Maintenance Standard and Test Procedure p. 99Milky or foamy hydraulic oil in the sight gauge with whining noise from the pump
Foamy oil means air is getting pulled into the suction side, usually through a hardened or split O-ring on the pump inlet hose. Remove the suction flange, torque the mounting socket bolts to 98 N·m (72 lbf·ft) per the spec on page 463, and replace the O-ring rather than reusing it. Fill through the tank to the 80 L capacity marked on page 459 and cycle all functions slowly to bleed trapped air before loading the machine.
Manual Section: Components System p. 463Boom or arm cylinder creeps down or drifts on its own with the joystick centered
Confirm the main relief valve holds 29.4 MPa (4270 psi) under load per the spec on page 259; if pressure checks out but the cylinder still creeps down, the leak is internal past the piston seal or rod cover. Pull the cylinder and inspect the rod cover and piston seals for wear, torquing the rod cover to 834 N·m (615 lbf·ft) and the piston nut to 3000 N·m (2210 lbf·ft) on reassembly per page 430.
Manual Section: Upper Slewing Body Troubleshooting (Control Valve)Frequently Asked Questions
How to reset error codes on New Holland E80MSR excavator?
To clear error code E01, which indicates a Mechatro controller maladjustment, first ensure the adjustment is completed normally. If the CPU lamp on the gauge cluster goes off, the adjustment is complete. If the CPU lamp is still flickering, press the starter switch once to turn the power OFF, then turn the starter switch ON and perform the adjustment again. This procedure is found on page 113. p. 113
What are the torque specs for the New Holland E80MSR boom connections?
For the boom top pin (F), the tightening torque is 59 N•m (43 lbf•ft). For the boom foot pin (A), the tightening torque is 65.7 N•m (48.5 lbf•ft). These torques are applied to the capscrews that secure the pins. p. 407
How to reset the hydraulic system on New Holland E80MSR after maintenance?
After hydraulic system maintenance, perform air bleeding by loosening the upper drain plug of the hydraulic pump and slewing motor, starting the engine, and keeping it in low idle condition until hydraulic oil seeps out. For the travel motor and hydraulic cylinders, run the engine for more than 5 minutes at low speed without load. Finally, perform air bleeding of the pilot line by operating digging, slewing, and travel functions. p. 14
What are the common error codes for New Holland E80MSR Midi Excavator?
Common error codes for the Mechatro Control System include E01 (EEPROM date error), E02 (Mechatro controller maladjustment), E03 (Boom raise pressure sensor error), E04 (Boom lower pressure sensor error), E05 (Arm in pressure sensor error), E06 (Arm out pressure sensor error), E07 (Bucket digging pressure sensor error), E08 (Bucket dump pressure sensor error), E09 (Swing pressure sensor error), E10 (P3 pump pressure sensor error), E11 (Travel right pressure sensor error), E12 (Travel left pressure sensor error), E13 (Accel dial error), E14 (Travel boost-up selector coil error), E15 (Swing parking selector coil error), E16 (Battery relay error), E17 (P1 by-pass cut valve coil error), E18 (P2 by-pass cut valve coil error), E19 (Travel straight valve coil error), E20 (Governor motor current error), E21 (Governor motor start point error), and E22 (Engine reverse rotation). p. 128
Is this New Holland E80MSR WORKSHOP MANUAL a digital download?
You get a 940-page searchable PDF that downloads instantly after checkout. Open it on your laptop, tablet, or phone, and bring it right to the shop floor.
Can I print this New Holland E80MSR manual?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
Are electrical wiring diagrams included in this New Holland E80MSR manual?
Yes, this New Holland E80MSR WORKSHOP MANUAL includes complete electrical wiring diagrams, wire routing, and connector pinouts.
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