Part of the Case Repair Manuals.
Looking for the Case 880C service manual PDF your dealer worked from? All 783 pages of this factory Service Manual (OEM #9-69762) cover the 880C excavator, from the 504BD engine down to the turntable bearing. You get wiring harness diagrams, equipment hydraulic schematics with diagnostic tests and checks, and troubleshooting charts for the drive motor circuit, swing motor, and track system. Inside: engine tune-up and rebuild procedures, fuel injection pump service, final drive transmission teardowns, plus hoist, crowd, and tool cylinder hydraulics. Set track sag between 1/2 and 1-1/2 inches, and torque those cylinder head bolts to 200 to 210 ft. lbs. on reassembly. No more chasing hydraulic faults on a 40-year-old machine with forum guesses. Bookmarked with a full text layer; type the spec you need, jump straight to it, and get back on the sticks.
What's Inside This Case 880C Manual
| System | Pages | Key Topics |
|---|---|---|
| Series - General | 4-35 | Torque Charts, Safety Rules, Specification Details - 504BD Engine |
| Series - Engine | 36-275 | Engine Tune-Up, Cylinder Head, Valve Train and Camshaft, Cylinder Block, Sleeves, Piston and Rods, Crankshaft, Main Bearings |
| Series - Fuel System | 276-321 | Fuel System and Filters, Fuel Injection Pump, Fuel Tank, Fuel Lines and Fuel Storage, Fuel Injectors |
| Series - Electrical | 322-461 | Maintenance Service, Diagnostic Tests and Checks, Wiring Harness, Starter and Starter Solenoid, Alternator |
| Series - Track and Suspension | 462-509 | Maintenance Service, Troubleshooting, Track Chain and Shoes, Track Rollers, Carrier Rollers, Idlers and Sprockets |
| Series - Power Train | 510-549 | Maintenance Service, Troubleshooting, Drive Motor Circuit and Lines, Drive Motor, Final Drive Transmission |
| Series - Brake System | 550-561 | Maintenance Service, House Brake, Track Digging Brake |
| Series - Equipment Hydraulics | 562-703 | Maintenance Service, Diagnostic Tests and Checks, Equipment Hydraulic Pump, Excavator Control Valves, Swing Motor Hydraulics, Swing Motor and Crossover Relief Valve |
| Series - Mounted Equipment | 704-783 | Maintenance Service, Troubleshooting, Control Levers and Linkage, Swing Reducer Gear Box, E Boom, Y Boom, Attachments, Turntable Leveler Assembly |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Cylinder Head Bolts | 200 to 210 Ft. Lbs. | p. 33 |
| cylinder head bolts torque | 210 ft. lbs. (285 Nm) | p. 89 |
| cover retaining nuts | 8 to 10 ft. lbs. (11 to 14 Nm) | p. 123 |
| Track Sag | 1/2 in to 1 1/2 in (12 mm to 38 mm) | p. 466 |
| Standard pin diameter | 1.4390 in (36.550 mm) | p. 476 |
| Master pin diameter | 1.3874 in (35.240 mm) | p. 476 |
| Track adjustment cylinder adapter torque | 25-40 lb-ft (33-54 Nm) | p. 507 |
| Idler shaft axial play | 1/16 inch (1.58 mm) | p. 505 |
| Idler bearing preload torque (torque wrench method) | 110 to 140 inch pounds (12-15 Nm) | p. 506 |
| Torque for capscrews around the gearbox cover | 42 lb-ft (57 Nm) | p. 741 |
| Torque for six capscrews on output shaft and retainer assembly | 200 lb-ft (270 Nm) | p. 740 |
| Turntable bearing capscrew - with 15/16 inch socket and 36 inch (915 mm) torque wrench | 200 lb-ft (270 Nm) | p. 768 |
Case 880C Common Problems This Manual Covers
Front idler wobbles or runs hot, idler shaft has noticeable side play
Jack the track and check idler shaft axial play; anything over 1/16 inch (1.58 mm), the spec on page 505, means the bearings need adjustment or replacement. Set bearing preload to 110 to 140 inch pounds (12-15 Nm) using the torque wrench method on page 506, then recheck play before reassembly.
Manual Section: Series - Track and Suspension p. 505Engine hard to start cold, runs rough and lacks power under digging load
Verify low idle sits at 725 to 775 RPM, spec on page 4, and confirm injection pump timing at 27 degrees before top center per page 5. Replace fuel filters and bleed the system. Work through the engine troubleshooting procedures starting to isolate compression, fuel delivery, or timing faults.
Manual Section: Engine Troubleshooting p. 4Frequently Asked Questions
How do I adjust track tension on a Case 880C excavator?
The track tension is adjusted by applying grease to the track adjusting cylinder until proper tension is attained. To decrease tension, loosen the fitting adapter. Tracks should have approximately 1/2 inch (12 mm) to 1 1/2 inch (38 mm) of sag. p. 466
How do you fix case 880C swing gear case bolts keep loosening, swing pinions break, gearbox shifts under load?
Torque the turntable bearing capscrews to 200 lb-ft (270 Nm) with a 15/16 inch socket per page 768, working in a cross pattern. Then measure backlash between the turntable bearing gear and swing reducer pinion; set it to 0.013 to 0.023 inch (0.330 to 0.585 mm) as shown on page 781. Loose mounts eat pinions fast. p. 768
How do you fix track climbs sprocket teeth or jumps off during turns, pins and bushings wearing fast?
Measure track sag at the carrier roller; the spec on page 466 is 1/2 to 1 1/2 inches (12 to 38 mm). Adjust through the grease fitting and torque the adjuster adapter to 25-40 lb-ft (33-54 Nm). If wear passes 0.120 inch (3.048 mm) on pins or external bushings per page 476, turn or replace them. p. 466
How do you fix swing is slow or drifts under load, swing gearbox noisy during rotation?
Check the swing gearbox oil level first; it holds 9 pints, spec on page 732. Drain, inspect the magnet for metal, and refill with fresh gear oil. Reinstall the gearbox cover and torque the capscrews to 42 lb-ft (57 Nm) per page 741. If swing still drags after servicing, test the swing motor and crossover relief valve. p. 732
What do I get after purchasing this Case 880C manual?
Instant PDF download. You get the full 783-page searchable Service Manual immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Does this Case 880C manual allow printing?
Print away. There is no DRM and no page limit. Many buyers print one chapter at a time and leave the rest on a tablet.
Does this Case 880C Service Manual include the hydraulic layout?
Full hydraulic system diagrams are included, covering circuits, valve locations, and hydraulic component specs for the Case 880C. See page 517 for an example.
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