Link Belt LS-138H II Crane Service Pdf Manual
Link-Belt LS-138H II Crane Service PDF Manual
The Link-Belt LS-138H II represents the evolution of one of Link-Belt's most respected hydraulic lattice boom crawler crane platforms. Built for contractors who demanded dependable lifting performance over years of continuous operation, the LS-138H II became a familiar sight on bridge construction, refinery expansions, power plant maintenance and large infrastructure projects. Its fully hydraulic operating system reduced operator effort while providing precise load control, making it a preferred machine for complex lifting applications where reliability mattered as much as capacity. More than three decades later, many of these cranes remain in active service because they were engineered to be rebuilt rather than replaced.
Keeping an LS-138H II operating at factory performance requires accurate workshop information—not generic repair advice. This OEM Factory Service Manual was developed for dealership technicians and experienced mechanics who perform complete inspections, troubleshooting, disassembly and component rebuilding. Every procedure follows the same logical sequence used in professional workshops, helping reduce downtime while ensuring assemblies are returned to factory specifications after repair.
Machine Overview
| Item | Details |
|---|---|
| Manufacturer | Link-Belt Cranes |
| Model | LS-138H II |
| Machine Type | Hydraulic Lattice Boom Crawler Crane |
| Generation | H II Series |
| Operating System | Full Hydraulic Crane System |
| Boom Configuration | Lattice Boom |
| Travel System | Crawler Undercarriage |
| Upper Structure | 360° Revolving Superstructure |
| Typical Applications | Bridge construction, industrial lifting, energy projects, marine work, heavy civil construction and infrastructure development |
Factory Workshop Coverage
Unlike simplified aftermarket repair books, the LS-138H II Service Manual is organized around complete machine systems, allowing technicians to diagnose faults efficiently and rebuild major assemblies using factory procedures.
- General service information, workshop safety procedures and machine terminology.
- Upper mechanism overhaul including swing machinery, hoist assemblies, revolving frame inspection and structural repair procedures.
- Lower mechanism servicing covering crawler frame components, travel assemblies, undercarriage inspection and drivetrain repairs.
- Complete control system diagnostics with hydraulic control adjustments and operational testing.
- Hydraulic system and hydraulic unit servicing, including pressure testing, component inspection and troubleshooting procedures.
- Gantry inspection, adjustment and structural service procedures.
- Crane assembly inspection, mechanical adjustments and functional testing.
- Electrical system diagnostics including wiring inspection, electrical troubleshooting and component testing.
- Factory torque tables for critical fasteners and major structural assemblies.
Why This Manual Is Valuable
The LS-138H II was designed as a long-service crawler crane capable of remaining productive through multiple rebuild cycles. Rather than replacing expensive assemblies unnecessarily, experienced mechanics use this manual to identify wear limits, verify component condition and rebuild systems to OEM standards. Whether servicing the hydraulic circuits, inspecting the crawler mechanism or repairing the upper machinery, the manual provides detailed procedures that reduce unnecessary downtime and improve repair accuracy.
Manual Technical Information
| Feature | Specification |
|---|---|
| Manual Type | OEM Factory Service Manual |
| Machine Covered | Link-Belt LS-138H II Crane |
| Language | English |
| Format | |
| Mechanical Repair Procedures | Included |
| Hydraulic Diagnostics | Included |
| Electrical Troubleshooting | Included |
| Control System Adjustments | Included |
| Upper & Lower Mechanism Repairs | Included |
| Torque Specifications | Included |
| Searchable PDF | Yes |
| Bookmarks | Yes |
| Printable | Yes |
| Compatible Devices | Windows, macOS, Android, iPhone & iPad |
| Delivery | Instant Digital Download |
Frequently Asked Questions
Is this an OEM workshop manual?
Yes. It is based on the original factory service documentation prepared for professional Link-Belt service technicians.
Does the manual include hydraulic troubleshooting?
Yes. Dedicated sections cover the hydraulic system, hydraulic unit, pressure testing and troubleshooting procedures.
Are electrical diagnostics included?
Yes. The manual contains electrical system service information together with diagnostic and inspection procedures.
Does it cover both the crawler and upper structure?
Yes. Separate sections are dedicated to the lower mechanism, upper mechanism, gantry, control systems and crane assemblies.
Who should use this manual?
This manual is intended for heavy equipment workshops, crane mechanics, fleet maintenance departments, equipment restoration specialists and experienced owner-technicians performing factory-standard repairs.