Part of the Case Repair Manuals.
One download puts all 829 pages of the Case 550E service manual PDF, OEM ID Rac 7-44032, on your bench: enough factory coverage to carry a 550E crawler from an engine stall test to a final drive rebuild without a second reference. Hydraulic schematics trace oil from the equipment pump through the dozer control valve to the cylinders, while the electrical section pairs its full schematic with troubleshooting tables for the starter, alternator, and instrument panel. Undercarriage work fills a long stretch of the book, covering lubricated, sealed, and rubber track along with idlers, rollers, sprockets, and the recoil housing. Reseal a quarter inch flare fitting to 72 to 144 pound-inches; set the track adjuster valve at 45 to 55 pound-feet. Some jobs, it is just you, the machine, and nobody to ask. This bookmarked, text searchable PDF gives you the factory answer, so the spec goes in right the first time.
What's Inside This Case 550E Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 3-15 | Section Index - General (Standard Torque Specifications, Fluids and Lubricants, Loctite Product Chart) |
| Engine | 16-233 | Section Index - Engine (Engine Stall Tests, Engine Removal and Installation and Radiator, Removal and Installation, Specification Details, Cylinder Head and Valve Train, Cylinder Block, Lubrication System, Cooling System, Turbocharger, Turbocharger Failure Analysis) |
| Fuel System | 234-292 | Section Index - Fuel System (Fuel System and Filters, Fuel Injectors, Cav Injection Pump, Bosch Injection Pump) |
| Electrical | 293-369 | Removal and Installation of Electrical Components, Electrical Specifications, Troubleshooting and Schematic, Batteries, Instrument Panel and Gauges, Starter and Starter Solenoid |
| Track | 370-544 | Section Index - Track (Undercarriage Fundamentals, Track System Components, Case Lubricated Track, Sealed Track and Track Frame, RubberTrack, Idler, Track Adjuster and Recoil Housing, Sprocket, Carrier Roller, Track Roller) |
| Power Train | 545-675 | Specifications, Schematic and Troubleshooting, Torque Converter and Torque Converter Housing, Transmission Control Valve, Modulator Valve, Transmission, Final Drive |
| Brakes | 676-697 | Section Index - Brakes (Removal and Installation of Brake Valve, And Removing Air From the Brake System, Brake Valve) |
| Hydraulics | 698-778 | Removal and Installation of Hydraulic Components, Specifications, Troubleshooting and Schematics, Cleaning the Hydraulic System, Equipment Pump, Dozer Control Valve, Cylinders |
| Mounted Equipment | 779-829 | Section Index - Mounted Equipment (Pedals and Levers, AngleTilt Blade, Ripper, ROPS Cab and Canopy, Suspension Seat) |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| 37 Degree Flare Fittings Torque (1/4 in) | 72-144 Pound-Inches | p. 7 |
| 37 Degree Flare Fittings Torque (5/16 in) | 96-192 Pound-Inches | p. 7 |
| Track Adjuster valve torque | 45 to 55 pound-feet (61 to 74 Nm, 6 to 8 kg/m) | p. 488 |
| Valve tightening torque | 45 to 55 pound-feet (61 to 74 N m) | p. 504 |
| Carrier roller nut and bolt torque | 80 to 96 pound-feet (109 to 130 N m) | p. 509 |
| Drive ring to flywheel cap screws | 156 to 180 pound-inches (18 to 20 Nm) | p. 564 |
| Drive ring to torque converter cap screws | 456 to 504 pound-inches (52 to 57 Nm) | p. 564 |
| Equipment control valve mounting nuts torque | 204 to 252 pound-inches (23 to 28 Nm) | p. 704 |
| Equipment pump cap screws torque | 66 to 79 pound-feet (90 to 107 Nm) | p. 706 |
| Output of pump | 17 U.S. gpm at 2000 psi at 2000 rpm | p. 711 |
| Pump efficiency | 75% | p. 715 |
| Engine Oil Capacity with Filter Change | 11 U.S. quarts (10.4 litres) | p. 11 |
Case 550E Common Problems This Manual Covers
Case 550E loses drive to one track, steering side slips under load on grades
Check hydraulic pressure at the affected steering clutch, and inspect hoses and end cap seal rings for leaks. Follow the power train troubleshooting steps starting on page 545 to isolate a slipping clutch pack. When replacing leaking hoses, torque 37 degree flare fittings per the chart on page 7, then refill the transmission with 8 U.S. gallons (30.3 litres).
Manual Section: Power Train p. 545Track tightens and jams on sidehills, chain climbing up over the sprocket teeth
Measure track sag and adjust to 1-1/2 to 2 inch (38 to 50 mm) using the procedure on page 448. Inspect sprocket teeth and chain pitch for wear mismatch; worn teeth let the chain climb the rail and bind on side slopes. Replace the sprocket and chain as a matched set, then recheck sag after an hour of work.
Manual Section: Track p. 448Machine moves fine cold, then loses drive power after an hour of operation
Remove the transmission suction screen and clean it, then replace the transmission filter; a clogged screen starves the charging pump once the oil warms and thins. Run torque converter stall tests to separate a weak pump from a failing converter. Refill the transmission with 8 U.S. gallons (30.3 litres) of clean oil and retest under load.
Manual Section: Transmission TroubleshootingTrack adjuster will not hold tension, recoil spring bangs and track goes slack
Check track sag after bleeding grease from the adjuster valve; the track should hold 1-1/2 to 2 inch (38 to 50 mm) of sag. If the adjuster bleeds down or the recoil spring rattles, replace the adjuster and recoil spring assembly, then tighten the adjuster valve to 45 to 55 pound-feet (61 to 74 Nm) per page 504.
Manual Section: Track p. 504Dozer blade lifts slowly and all hydraulic circuits feel weak once oil warms up
Test equipment pump output against the spec of 17 U.S. gpm at 2000 psi at 2000 rpm listed on page 711. If output falls below the 75 percent efficiency minimum shown on page 715, rebuild or replace the pump. Check the reservoir first and fill to the 10.3 U.S. gallon (39 litre) capacity, and inspect the suction line for collapse.
Manual Section: Hydraulics p. 711Frequently Asked Questions
What are the standard torque specifications for Grade 8 bolts, nuts, and studs on a Case 550E crawler?
For Grade 8 fasteners, the torque specifications vary by size. For example, 1/4 inch bolts require 144-180 pound-inches (16-20 Newton-metres), 1/2 inch bolts require 110-132 pound-feet (149-179 Newton-metres), and 1 inch bolts require 900-1080 pound-feet (1220-1465 Newton-metres). p. 5
What is the engine oil capacity for the 550E Crawler?
The engine oil capacity with a filter change is 11 U.S. quarts (10.4 litres). p. 11
What is the correct procedure to bleed air from the fuel system on a 4-390 engine?
To bleed the fuel system, ensure there is fuel in the tank, loosen the bleed screw (1), and actuate the primer pump (2). Tighten the bleed screw once clear fuel without air bubbles flows from it. If the primer pump cannot be actuated, rotate the engine until it can. p. 237
What is the torque spec for the final drive mounting bolts on a Case 550E crawler?
The mounting bolts for the final drive to the main frame require 380 to 456 pound-feet (515 to 618 Nm). p. 658
What is the correct track sag adjustment for the 550E Crawler?
The correct track sag adjustment is 1-1/2 to 2 inches (38 to 51 mm). p. 501
Will this Case 550E Service Manual download right away?
Straight to your device: 829 pages of searchable Service Manual, downloadable the moment payment goes through.
Can I print just the pages I need from this Case 550E manual?
Yes, print as many copies as you want, and there are no restrictions. Many mechanics print the section they need and bring it to the shop floor.
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