Part of the Case Repair Manuals.
All 276 pages of this Case 5550 service manual PDF (OEM #S406249) point at one machine: the 5550 Cruz-Crane, from turntable bearing to steering orbitrol. You get factory wiring diagrams for the collector ring and outrigger relays, hydraulic schematics tracing every circuit from the main pump through the swing motor, and troubleshooting charts for the air system, transmission, winches, and electrical faults. Exploded views back up a full section of step-by-step procedures on your Braden and Gearmatic winches, torque converter, and hoist cylinders. Both main relief valves are set at 2750 psi (18 960 kPa), and pump section 1 feeds the main winch at 60 gpm (227 L/min). A crane that won't swing is just scrap iron in the way. This bookmarked PDF opens on any laptop, tablet, or phone; carry it out to the machine and get wrenching.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 5-11 | Machine Identification, Engine Identification, Direction References, Boom, Hoist Cylinders, Main Winch |
| Preventive Maintenance | 12-17 | Sound Reduction Insulation, Spark Arresting Mufflers, Hydraulic Oil Recommendations, Maintenance Chart, Grease Fittings |
| Mechanical System | 18-61 | Engine, Accelerator, Torque Converter, Transmission, Turntable Swing, Winches |
| Air System | 62-71 | Air Compressor, Air Reservoir, Brake Valve, Air Swivel, Relay Valve, Double Check Valve |
| Electrical System | 72-87 | Alternator, Voltage Regulator, Battery, Collector Ring, Circuit Breakers, Outrigger Relays |
| Hydraulic System | 88-132 | Main Hydraulic Pump, Auxiliary Hydraulic Pump, Hydraulic Swivel, Main Control Valves, Steering Orbitrol, Swing Motor |
| Disassembly and Repair | 133-210 | Torque Converter, Transmission, Swing Gearbox, Turntable Bearing, Braden C2H16 Winch, Braden PD10-D Winch, Gearmatic Gh-85 Winch |
| Governor | 211-249 | Drain, Automatic |
| Hoist | 250-254 | Hoist Cylinders, Counterbalance Valves, Main Winch, Brake Valve, Winch Motor |
| Oscillation, Axle Lockout | 255 | Oscillation Lockouts, Hydraulic Cylinders, Solenoid Valves, Axle Lockout Circuit |
| Steering | 255-273 | Steering Circuit, Steering Orbitrol, Flow Divider, Steering Selector Valve, Steering Lock Valve |
| Torque Charts | 274-276 | Jic Swivel Nuts, Grade 5 Capscrews, Grade 8 Capscrews, Axle Torque Specifications, Transmission Torque Specifications |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Main Pump Section 1 Rated Output | 60 gpm (227 L/min) | p. 13 |
| Main Pump Section 2 Rated Output | 50 gpm (189 L/min) | p. 13 |
| Circuit breaker rating | 10 AMP | p. 71 |
| Circuit breaker | 10 amp | p. 84 |
| Main relief valve pressure setting | 2750 psi (18 960 kPa) | p. 94 |
| Adjustment per quarter turn of adjusting screw | 200 psi (1 380 kPa) | p. 95 |
| Auxiliary pump output | 34 gpm (128 L/min) | p. 119 |
| Torque for 3/8 Grade 5 Fine Threads | 26-29 LB-FT | p. 145 |
| Torque for 3/8 Grade 5 Coarse Threads | 23-25 LB-FT | p. 145 |
| Detroit Diesel 6V-53 Governed Speed | 2400 RPM | p. 10 |
| Tire Pressure | 65 psi | p. 13 |
| Fuel Tank Capacity | 105 gal | p. 13 |
