The Wacker Neuson EZ38 service manual PDF takes this track excavator apart on paper: 266 factory pages, OEM document 1000333445, running from track chain and final drive to the cabin roof harness. Full wiring harness diagrams cover both Yanmar engines fitted to the EZ38, the 3TNV88-BPNS and the Tier IV 3TNV88F-EPNS, with legends and cable color coding so you trace a dead circuit to one connector instead of the whole loom. Hydraulics run just as deep: exploded views of the PVD-1B-32 pump unit, the main valve block diagram with its pressure limiting valves, and pressure check procedures for both variable displacement pumps. Set track tension play at 20 to 25 mm, and pull cylinder-head bolts to 85.3 to 91.1 Nm in the printed tightening order. An excavator that sits all morning bills nothing. Bookmarked and text-searchable, the file jumps straight to the page you want; download it before the next fault does.
What's Inside This Wacker Neuson EZ38 Manual
| System | Pages | Key Topics |
|---|
| Operation | 9-24 | Information on This Service Manual, Identification of Warnings and Dangers, Explanation of Symbols and Abbreviations (Conversion Table) |
| Engine | 109-150 | Engine 3TNV88-Bpns, Fuel System, Removing the Cylinder-Head Cover, Checking and Adjusting Valve Clearance, Tightening Order for Cylinder Head Bolts |
| Hydraulic System | 151-182 | Hydraulic Pump Pvd-1B-32BP-11G5-4904A / Pvd-1B-32BCP-11G5-5596Z (Pump Unit: Exploded View, Diagram, Pilot Oil Supply Unit) |
| Electrical System | 183-214 | Ohm’s Law; Power, Measuring Equipment, Measuring Methods, Cable Color Coding, Relays (Use, Mode of Function), Socket, Alternator, Starter |
| Diagrams | 215-236 | Hydraulics Diagram, Main Valve Block, Electrical Diagrams, Electrical Diagram Tier Iv Eco |
| Options | 237-256 | Air Conditioning (Specific Safety Instructions, Technical Data, Components, Compressor, Filling Up the Air Conditioning System, Maintenance, Troubleshooting) |
| Special Tools | 257-266 | Infrared Thermometer, Hand-Held Infrared Tachometer, Wacker Neuson Measuring Kit, Proportional Controls Configuration Kit, Dial Gage, Vacuum Pump |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| Cylinder-head bolt | 85.3 – 91.1 Nm (62.9 – 67.2 ft.lbs.) | p. 32 |
| Connecting rod bearing screw | 44.1 – 49.0 Nm (32.5 – 36.1 ft.lbs.) | p. 32 |
| Check bearing play of tread rollers, track carrier rollers, front idlers | Every 500 operating hours | p. 55 |
| track tension play | 20 – 25 mm (0.8 – 1 in) | p. 103 |
| Switch operating point of valve pos. 6 | 180 bar (2610.68 psi) | p. 172 |
| Engine Oil Capacity | 7.1L | p. 45 |
| Hydraulic Oil Reservoir Capacity | 36.5L | p. 45 |
| Fuel Tank Capacity | 44L | p. 45 |
| Engine Cooling System Capacity | 5L | p. 45 |
| Engine Idling Speed (3TNV88-BPNS) | 1100 rpm | p. 26 |
| Engine Max Speed (3TNV88-BPNS) | 2500 rpm | p. 26 |
| Operating Pressure (Hydraulics) | 240 bar | p. 27 |
