$77.95
Link Belt 120 RT Crane Service Pdf Manual
Link-Belt 120RT Crane Service PDF Manual
The Link-Belt 120RT is built for contractors tackling the heaviest lifts on challenging jobsites where stability, reach and precision are essential. Rated at 120 US tons (110 metric tons), this next-generation rough terrain crane features a six-section greaseless telescopic boom, Link-Belt Pulse 2.0 operating system, V-CALC outrigger technology and a heavy-duty four-wheel drive carrier. From wind turbine construction and petrochemical shutdowns to bridge erection and heavy industrial projects, the 120RT delivers exceptional lifting performance. This OEM Factory Service PDF Manual provides professional workshop procedures to inspect, diagnose, overhaul and calibrate every major system according to original Link-Belt factory standards.
Built for Maximum Reach and Productivity
The 120RT combines outstanding lifting capacity with excellent transportability. Its 38.3–164.1 ft (11.7–50 m) six-section pin-and-latch greaseless boom, optional 35–58 ft SmartFly lattice fly, available 16 ft lattice inserts and maximum tip height of approximately 261.7 ft (79.8 m) allow contractors to complete complex lifting operations with fewer crane relocations. Pulse 2.0 continuously monitors crane performance while V-CALC supports multiple outrigger configurations for improved flexibility on confined jobsites.
Workshop Repair Procedures Included
- Hydraulic pump inspection, pressure testing, flow testing and pump rebuilding.
- Power Shift transmission overhaul including clutch packs, torque converter and planetary gear assemblies.
- Six-section boom disassembly, telescope cylinder rebuilding, wear pad replacement and boom synchronization.
- Boom hoist cylinder repair, counterbalance valve servicing and hydraulic pressure adjustment.
- Swing gearbox rebuilding, swing brake adjustment, bearing preload inspection and backlash measurement.
- Main and auxiliary planetary winch servicing including brake packs, reduction gears and drum assemblies.
- Hydraulic outrigger cylinders, lock valves, stabilizer beams, manifolds and rotating joint repairs.
- Front and rear axle servicing including steering cylinders, differential assemblies, driveline and wheel hub inspection.
- Emergency steering diagnostics, hydraulic brake servicing and parking brake adjustment.
- Electrical troubleshooting using OEM wiring diagrams, controller diagnostics, sensors, relays and charging system testing.
- Hydraulic schematics, exploded illustrations, torque specifications, troubleshooting charts and calibration procedures.
Machine Information
| Specification | Details |
|---|---|
| Model | Link-Belt 120RT |
| Machine Type | Hydraulic Rough Terrain Crane |
| Rated Capacity | 120 US Tons (110 Metric Tons) |
| Boom Type | Six-Section Greaseless Pin-and-Latch Boom |
| Standard Boom Length | 38.3–164.1 ft (11.7–50 m) |
| Telescope System | Pin-and-Latch Hydraulic Extension |
| Optional Fly | 35–58 ft Bi-Fold SmartFly |
| Lattice Inserts | One or Two 16 ft Extensions |
| Maximum Tip Height | 261.7 ft (79.8 m) |
| Maximum Line Pull | 23,632 lb (105.1 kN) |
| Maximum Line Speed | 354 ft/min (107.9 m/min) |
| Swing Rotation | 360° Continuous |
| Drive Configuration | 4×4 Rough Terrain Carrier |
| Transmission | Power Shift |
| Hydraulic System | Load-Sensing Hydraulic Circuit |
| Steering Modes | Front, Rear, Crab and Coordinated |
| Control System | Link-Belt Pulse 2.0 |
| Outrigger Management | V-CALC Variable Configuration |
| Operator Cab | 0°–20° Tilting Enclosed Cab |
| Lighting Package | LED Vision Package |
| Suspension | Greaseless Four-Link Suspension |
| Transport Weight | Under 95,000 lb with Counterweights Removed |
| Main Applications | Wind Farms, Bridge Construction, Steel Erection, Refineries, Industrial Plants and Infrastructure Projects |
| Major Systems | Boom, Swing, Winches, Carrier, Hydraulics, Transmission, Axles, Steering, Brakes and Electronics |
Manual Specifications
| Manual Details | Description |
|---|---|
| Manual Type | OEM Factory Service Manual |
| Machine Covered | Link-Belt 120RT Crane |
| Document Format | |
| Language | English |
| Searchable PDF | Yes |
| Bookmarks | Yes |
| General Information | Workshop Instructions & Safety |
| Rubber Tire Lower | Complete Service Procedures |
| Upper Revolving Frame | Inspection & Repair |
| Front & Rear Axles | Removal & Reconditioning |
| Power Shift Transmission | Inspection & Overhaul |
| Steering System | Complete Service Coverage |
| Six-Section Boom | Removal & Reconditioning |
| Hydraulic Pumps | Testing & Rebuilding |
| Winch Assemblies | Repair Procedures |
| Swing System | Inspection & Adjustment |
| Outrigger System | Complete Hydraulic Service |
| Hydraulic Schematics | Complete OEM Diagrams |
| Electrical Wiring | Factory Schematics |
| Troubleshooting Charts | OEM Diagnostic Flowcharts |
| Calibration Procedures | Factory Adjustment Values |
| Torque Specifications | OEM Standards |
| Exploded Drawings | Detailed Assembly Illustrations |
| Workshop Coverage | Boom, Hydraulics, Swing, Transmission, Axles, Steering, Brakes and Electrical Systems |
| Delivery | Instant Digital Download |
| Compatible Devices | Windows, macOS, Android, iPhone and Tablet |
Frequently Asked Questions
Does this manual include complete six-section boom overhaul procedures?
Yes. It covers boom removal, telescope cylinder rebuilding, wear pad replacement, structural inspection and boom synchronization according to factory specifications.
Can I rebuild the Power Shift transmission with this manual?
Yes. The manual explains clutch inspection, planetary gear servicing, torque converter overhaul, hydraulic testing and complete transmission reassembly.
Are Pulse 2.0 and V-CALC related diagnostics included?
Yes. The manual includes service information for the crane's electronic control system together with calibration procedures and troubleshooting guidance.
Are hydraulic schematics and wiring diagrams included?
Yes. Complete OEM hydraulic circuits, electrical wiring diagrams, connector identification and diagnostic procedures are included.
Who should use this factory service manual?
This manual is intended for crane owners, fleet maintenance departments, rental companies and professional heavy equipment technicians servicing the Link-Belt 120RT.