Part of the Case Repair Manuals.
Looking for a Case 880R service manual PDF you can trust? This 771-page factory service manual (OEM #9-67074) walks you through the entire 880R excavator, from engine tune-up to the swing gearbox and outriggers. Inside: wiring harness diagrams, hydraulic schematics for the pump, control valves, swivel, and swing motor, and a full troubleshooting section for engine diagnosis. You also get step-by-step rebuild procedures for the torque converter, drop box transmission, axle planetaries, and the air brake system, right down to the compressor and brake valve. Replace the fuel filters every 500 hours, and torque the pump housing retaining bolts to 35 to 42 ft. lbs. Your machine is down; forum guesses will not restart it. Bookmarked for quick section jumps: download it, load your tablet, and take the factory numbers straight to the machine.
What's Inside This Case 880R Manual
| System | Pages | Key Topics |
|---|---|---|
| Series - General | 3-38 | Run-In Instructions |
| Series - Engine | 39-238 | Engine Diagnosis, Engine Tune-Up, Cylinder Head, Crankshaft, Lubricating System, Turbocharger System |
| Series - Fuel System | 239-288 | Fuel Filters, Fuel Injection Pumps, Fuel Injectors, Fuel Tank, Fuel Lines |
| Series - Hydraulic | 289-428 | Hydraulic Pump, Control Valves, Hydraulic Swivel, Hydraulic Cylinders, Swing Motor, Hoist Cylinder |
| Series - Track and Suspension | 429-454 | Power Steering System, Steering Control Valve, Steering Reversal Valve, Steering Cylinder, Steering Orbitrol |
| Series - Power Train | 455-572 | Torque Converter, Drop Box Transmission, Drive Shafts, Axle Differential, Axle Planetaries, Charging Pump |
| Series - Brakes | 573-644 | Air Compressor, Brake Valve, Brake Actuator, Parking Brake, Brake Shoes, Air Reservoir |
| Series - Electrical | 645-702 | Wiring Harnesses, Batteries, Starter, Starter Solenoid, Alternator, Voltage Regulator |
| Series - Mounted Equipment | 703-770 | Control Levers, Outriggers, Swing Gearbox, Boom, Turntable Swing, Cab Heater |
| Blank Page | 771 | - |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Fuel filter replacement interval | Every 500 hours | p. 19 |
| Fuel filter bleeder screws torque | 12 to 18 in. lbs. | p. 20 |
| Hydraulic Fittings (Steel) 4 Dash Size 37° Flare Torque | 6-12 ft-lbs | p. 34 |
| Hydraulic Fittings (Steel) 4 Dash Size Straight Thread O-ring Torque | 12-19 ft-lbs | p. 34 |
| Retaining bolts for pump housing | 35 to 42 ft. lbs. | p. 225 |
| Retaining nuts for water pump | 35 to 42 ft. lbs. | p. 225 |
| torque for four nuts | 200 lb-ft (27 Nm) | p. 349 |
| main relief pressure for Pump No. 1 and No. 2 circuits | 2250 psi | p. 350 |
| Belt deflection (in use over 20 hours) | 1/2 inch | p. 581 |
| Belt tension (in use over 20 hours) | 90 pounds | p. 581 |
| Current output | 62 amps | p. 659 |
| Voltage output | 14 volts | p. 659 |
Case 880R Common Problems This Manual Covers
Battery keeps going dead, ammeter shows discharge, charging light stays on at working rpm
Clean and tighten the ground connections and wiring harness plugs before condemning the alternator; a corroded ground fakes alternator failure. Then run the output test on page 659: set the engine at 1800 rpm, load with a carbon pile, and look for 62 amps at approximately 14 volts. Anything short means the alternator or regulator needs bench work.
Manual Section: Electrical System Troubleshooting p. 659Starter clicks but won't crank, or cranks slowly even with a fully charged battery
Test battery voltage and clean both cable ends before touching the starter; slow cranking usually lives in the connections. If the solenoid clicks without engaging, bench-test the pull-in winding per page 699: it should draw 10 to 11.5 amps at 5 volts. Readings outside that range mean a bad solenoid, so replace it rather than the whole starter.
Manual Section: Electrical System Troubleshooting p. 699Frequently Asked Questions
How do I check the torque specifications for the engine?
Torque specifications for the engine are found in the 'Special Torques' section. For example, the cylinder head bolts should be torqued to 200 to 210 ft. lbs. (271 to 285 Nm). p. 16
How do you fix case 880R engine loses power under load, drops rpm, stalls halfway through a dig cycle?
Replace both fuel filter stages every 500 hours or sooner when horsepower drops, per the interval on page 240. Bleed the system and torque the filter bleeder screws to 12 to 18 in. lbs. so they seal without cracking. If it still starves, work the engine diagnosis procedures starting for intake air leaks. p. 240
How do you fix hydraulics feel weak and noisy, boom slow to lift, oil running hot after an hour?
Check hydraulic oil level and filter condition first; contaminated oil or a plugged filter mimics pump wear. Then test main relief pressures per page 350: 2250 psi for Pump No. 1 and No. 2 circuits, 1600 psi for Pump No. 3. Low readings with clean oil point to internal pump wear; cut the filter open and look for copper powder. p. 350
How do you fix engine runs hot in warm weather, coolant temperature climbs during steady digging?
Check fan belt tension first: 1/2 inch deflection or 90 pounds on a tension gauge for belts with over 20 hours, per page 581. Inspect the fan for cracked or loose blades, replace if damaged, then torque the fan retaining bolts to 35 to 42 ft. lbs. Clean packed debris out of the radiator cores while you are in there.
How is this Case 880R Service Manual delivered?
A 771-page Service Manual in scanned PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Is this Case 880R manual print-friendly?
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.
Are hydraulic system diagrams in this Case 880R Service Manual?
Yes, this Case 880R Service Manual includes hydraulic system diagrams, circuit schematics, and component specifications. Page 301 carries one of them.
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