Part of the New Holland Repair Manuals.
This 680-page New Holland E18SR, CX17B Repair Manual (OEM #87630256 NA) covers your Compact Crawler Excavator down to the last cotter pin, from the swing bearing to the Mitsubishi engine block. You get full hydraulic schematics with circuit operation and component models, wiring diagrams with harness connection details, and a troubleshooting section that walks through cylinder faults and performance inspection instead of leaving you guessing. Open to the torque tables and you'll find real numbers: tighten that relief valve capscrew to 7.8 N-m, the PR1 relief valve to 44 N-m, and confirm the PVD–00B–15P–5AG3–5055A pump assy spec before reassembly. Your multimeter and a hunch aren't a repair strategy. This PDF carries bookmarked navigation built in, so you jump straight from cover to hydraulic pump teardown to engine overhaul without hunting through 680 pages by hand. Download it, load it on your phone, and get the excavator back on the job site.
What's Inside This New Holland E18SR, CX17B Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 11-16 | General Safety Information, Safety Precautions, Manual Usage Notes |
| Outline | 17-24 | General Precautions for Repairs, Disassembling/Assembling Safety, Hydraulic/Electrical Parts, International Unit Conversion |
| Specifications | 25-36 | Components Name, Machine Dimensions, Performance Specs, Machine & Components Weight, Transportation, Engine Specifications |
| Attachment Dimensions | 37-60 | Boom Dimensional Drawing, Arm Dimensional Drawing, Bucket Dimensional Drawing, Dozer Dimensional Drawing, Swing Maintenance Standards |
| Tools | 61-70 | Standard Torque Specifications, Screw and Tool Sizes, Special Spanners, Screw Locking/Sealing Compounds, Counter Weight Lifting Jig |
| Standard Maintenance Timetable | 71-80 | Standard Working Time Table, Maintenance Time Calculation, Abbreviations, Work Code Classification |
| Maintenance Standard and Test Procedure | 81-100 | How to Use Maintenance Standards, Performance Inspection Table, Measuring Engine Speed, Hydraulic Pressure, Travel/Swing/Attachment Operating Performances, Crawler Tension |
| Hydraulic System | 101-112 | Hydraulic Circuit Summary, Component Models, Circuit Operation, Schematic Piping for Hydraulic System |
| Electrical System | 113-144 | How to Read Circuit Diagram/Harness Connection, Electrical Equipment List, Harness & Cable List, Arrangement Drawings |
| Components System | 145-216 | Hydraulic Components (Pump, Pilot Valve, Control Valve, Slewing Motor, Travel Motor, Swivel Joint, Cylinder), Electrical Equipment List, Electrical Equipment Specifications |
| General Disassembly and Assembly | 217-220 | Attachment Disassembly, Upper Slewing Structure Disassembly, Travel System Disassembly, Tightening Torque Specification |
| Attachments | 221-250 | Removing/Installing (Bucket, Arm, Boom, Swing, Dozer), Cylinder Disassembly/Assembly, Cylinder Maintenance Standards, Cylinder Troubleshooting |
| Upper Swing Structure | 251-372 | Removing/Installing (Canopy, Engine, Control Valve, Swing Motor, Swivel Joint), Hydraulic Pump Disassembly/Assembly, Control Valve Disassembly/Assembly, Maintenance Standards |
| Travel System | 373-430 | Removing/Installing (Crawler, Lower Roller, Front Idler, Sprocket, Travel Motor, Slewing Bearing), Travel Motor Disassembly/Assembly, Maintenance Standards, Cautions for Handling |
| Engine | 463-660 | Mitsubishi Engine Service Manual, Service Data, Basic and Special Tools, Overhaul Determination, Disassembling/Inspecting/Repairing/Reassembling Engine Main Parts |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| HYDRAULIC PUMP | 24-3 | p. 6 |
| Tightening torque for nut (2) | 19.6 N•m (14.5 lbf·ft) | p. 90 |
| Tightening Torque: Lock Nut (2) | 7.8 N•m (5.8 lbf·ft) | p. 91 |
| PUMP ASSY MODEL No. | PVD-00B-15P | p. 147 |
| FUEL SENSOR Part No. | PU52S00013F1 | p. 203 |
| E/G OIL PRESSURE SW. Part No. | E/G accessory (VA31A90-00600) | p. 203 |
| Hydraulic system pressure loss during operation | Check injection pump | p. 458 |
| Engine overheating with no coolant flow | Check radiator clogging | p. 459 |
| Thermostat valve starts opening temperature | 76.5 ± 1.5°C [167 to 172.4°F] | p. 601 |
| Engine Model | L3E-W231KBS | p. 29 |
| Rated Output | 11.3 kW / 2,200 min-1 (15.4 PS / 2,200 rpm) | p. 29 |
New Holland E18SR, CX17B Common Problems This Manual Covers
New Holland E18SR hydraulic pressure drops mid-cycle, bucket won't lift or hold attachment load
Check the main relief valve setting on page 158; it should hold 21.6 MPa (3130 psi) at P1 and P2. If pressure sags below spec, pull the valve and inspect the seat for wear, then torque the lock nut to 7.8 N·m (5.8 lbf·ft) per the page 91 spec before retesting under load.
Manual Section: Components System p. 158Boom drifts down or drops unexpectedly when the machine sits idle for a few minutes
Inspect the relief valve (PR1) for a worn seat or weak spring; it's torqued to 44 N·m (32 lbf·ft) per the page 91 spec and should hold steady with no bleed-down. Replace the valve cartridge if it won't hold pressure at idle, then bleed the circuit and cycle the boom fully before returning the machine to service.
Manual Section: Maintenance Standard and Test Procedure p. 91Hydraulic pump makes abnormal noise or vibration under load, worse at higher RPM
Verify pump inlet flow against the PVD-00B-15P-5AG3-5055A specification; replace the hydraulic pump if the abnormal noise or vibration persists under load.
p. 147Frequently Asked Questions
What are the torque specifications for hydraulic hose fittings on the New Holland E18SR mini excavator?
The tightening torque for hydraulic hose fittings (30° flare type) varies by nominal screw size. For a 1/8 PF size, the torque is 15±2.0 N•m (11±1 lbf•ft), while a 1/2 PF size requires 78±4.9 N•m (58±4 lbf•ft). Always ensure the application is under dry conditions. p. 65
What are the setting pressures for the main and overload relief valves in the hydraulic control valve?
The main relief valve for P1 and P2 ports is set to 21.6 MPa (3130 psi) at 16.3 L/min (4.3 gal/min), and for P3 port, it is 20.6 MPa (2990 psi) at 11.4 L/min (3.0 gal/min). Overload relief valves for A4, B4, A8, A9 ports are set to 24.5 MPa (3560 psi) at 5 L/min (1.3 gal/min), and for A2, B8 ports, they are 27.5 MPa (4000 psi) at 5 L/min (1.3 gal/min). p. 158
What is the engine oil volume for the New Holland E18SR mini excavator?
The engine oil volume for the New Holland E18SR mini excavator is 3.5 liters (0.92 gallons) for the high level and 2.2 liters (0.58 gallons) for the low level. p. 34
What is the cooling water capacity for the New Holland E18SR mini excavator?
The cooling water capacity for the New Holland E18SR mini excavator is 3.7 liters (0.98 gallons) maximum and 1.9 liters (0.50 gallons) for the engine. p. 34
How will I receive this New Holland E18SR, CX17B Repair Manual?
This is a 680-page searchable PDF ready for immediate download. Works on any device, so pull it up on your phone while you're under the hood. No shipping, no waiting.
Can I print this New Holland E18SR, CX17B manual?
Yes, print as many copies as you want, and there are no restrictions. Many mechanics print the section they need and bring it to the shop floor.
Can I find wiring schematics in this New Holland E18SR, CX17B manual?
Included. The New Holland E18SR, CX17B Repair Manual covers complete wiring harness diagrams, electrical circuits, and connector pinouts.
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