The Link-Belt 2650Q, 2700Q shop manual PDF, book number WEL2710-0E, strips both Quantum series excavators down to the swing bearing across 782 pages of factory disassembly and servicing procedures. Hydraulic schematics map the control valve circuits, load holding valve, arm regeneration and travel priority included, and a wiring diagram closes out the book. Maintenance standards give you wear limits for rollers, idlers and the recoil spring, so you can measure a track component and call it serviceable or scrap on the spot. Torque the travel motor mounting bolts to 200-230 ft lbs, then set the pump relief valve assembly at 61 ft lbs, straight from the factory tables. Guesswork here costs a second teardown. This bookmarked, text-searchable PDF rides along on whatever screen is closest to the machine.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Shop Manual Explanation | 3-46 | Contents, Safety, Introduction, Symbols Used, Precautions, Standard Torque Specifications, Numerical Value Conversion Table |
| General | 47-78 | Lower Mechanism Specifications, Upper Mechanism Specifications, Engine Specifications, Hydraulic Equipment Specifications |
| Performance | 79-84 | Main Body Weight |
| Main Body Disassembly and Servicing Procedures | 85-174 | Lower Mechanism Disassembly, Upper Mechanism Disassembly, Attachment Disassembly, Maintenance Standards |
| Major Components Disassembly and Servicing Procedures | 175-232 | Tightening Torque for Major Parts, Take-Up Roller Disassembly, Upper Roller Disassembly, Lower Roller Disassembly, Recoil Spring Disassembly, Rotating Joint Disassembly |
| Hydraulic Pump Disassembly and Maintenance | 233-294 | Hydraulic Pump, Piston Pump, Gear Pump, Regulator, Relief Valve, Solenoid Proportional Control Valve |
| Travel Mechanism (2650/2700) | 295-350 | Travel Mechanism, Hydraulic Motor, Brake Valve, Parking Brake, 2-Speed Switch Mechanism |
| Travel Mechanism Disassembly and Maintenance | 351-412 | Travel Mechanism Disassembly, Reduction Gear, Hydraulic Motor Parts, Brake Valve Parts, Assembly Procedures |
| Cylinder Specifications and Structure | 413-476 | Cylinder Specifications, Boom Cylinder, Arm Cylinder, Bucket Cylinder, Cylinder Maintenance Standards |
| Swing Mechanism | 477-548 | Swing Motor Assembly, Reduction Gear, Mechanical Brake, Make-Up Valve, By-Pass Valve |
| Control Valve | 549-730 | Control Valve Actuation, Load Holding Valve, Logic Check Valve, Arm Regeneration Circuit, Travel Priority Circuit |
| Solenoid Valve (8-Spool) | 731-782 | 8-Spool Solenoid Valve, Hydraulic Circuit, Solenoid Valve Structure, Valve Disassembly, Valve Reassembly |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| 2650 | ||
| Boom cylinder mounting bolt tightening torque, 2650 | 29.4 ± 5.5 ft lbs (4.06 ± 0.76 kgf-m) | p. 647 |
| 2700 | ||
| Boom cylinder mounting bolt tightening torque, 2700 | 23.2 ± 4.3 ft lbs (3.21 ± 0.60 kgf-m) | p. 659 |
| All Models | ||
| Hydraulic pump mounting bolt tightening torque | 24 ft lbs (3.3 kgf-m) | p. 283 |
| Hydraulic pump relief valve assembly tightening torque | 61 ft lbs (8.5 kgf-m) | p. 283 |
| Travel motor mounting bolt tightening torque | 200-230 ft lbs (266.6-311.6 Nm) | p. 179 |
| Drive sprocket mounting bolt tightening torque | 200-230 ft lbs (266.6-311.6 Nm) | p. 179 |
| Travel motor oil seal tightening torque | 203 ft lbs (28.0 kgf-m) | p. 284 |
| Throttle motor mounting bolt tightening torque | 9.4 ft lbs (1.3 kgf-m) | p. 60 |
| Pilot signal pressure for travel mechanism | 569 psi (40 kgf/cm²) | p. 315 |
| Solenoid Valve Rated Voltage | 20-32 Volt | p. 736 |
| 2650Q | ||
| 2650 Lower Total Weight | 9020 lbs | p. 47 |
| 2650 Rated Horsepower | 88 Ps | p. 57 |
