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Part of the Case Repair Manuals.
All 749 pages of this J I Case 480C Loader Backhoe Service Manual stay focused on one machine: the 188D and 207 diesel engines, the hydraulic system, and everything bolted to that Loader Backhoe chassis. You get full wiring diagrams for chasing electrical faults, hydraulic schematics covering the loader control valve, backhoe control valve, and three-point hitch circuits, plus a dedicated troubleshooting section for pressure checks before you start pulling cylinders apart. Open to the axle work and you'll find real numbers: press the new oil seal lip-up over the sleeve, coat it with number 2 lithium gun grease, and lubricate the axle housing O-ring with SAE 90EP oil. Brake pedal free travel runs 1/16 to 3/16 inch (1.6 to 4.7 mm), so you can check it against spec instead of guessing. Your machine won't wait for a forum reply. This PDF is bookmarked by system, so you jump straight from engine to steering to backhoe without scrolling past 700 pages.
What's Inside This J I Case 480C Manual
| System | Pages | Key Topics |
|---|---|---|
| Series - General | 6-28 | 1010 - General Engine Specifications -188D Engine, 1027 - Detailed Specifications -188D Engine, 1050 - Maintenance & Lubrication, 1051 - Torque Specifications, 1052 - Noise Control |
| Series - Engine | 29-221 | 2001 - Engine Dianosis - 188 & 207 Diesel Engines, 2002 - Engine Tune-Up - 188 & 207 Diesel Engines, 2015 - Cylinder Head, Valve Train & Camshaft - 188 & 207 Diesel Engines |
| Series - Fuel System | 222-281 | 3010 - Fuel System & Filters - 188 & 207 Diesel Engines, 3012 - Roosa Master Model Db Fuel Injection Pumps & Pump Drive Gear - 188 & 207 |
| Series - Hydraulic System | 282-441 | Hydraulic Diagrams, Maintenance, Trouble Shooting & Pressure Checks, Hydraulic Pump, Loader Control Valve, Three Point Hitch Control Valve, Loader, Backhoe & Three Hitch Cylinders |
| Series - Steering System | 442-476 | 5002 - Hydraulic Diagram, Trouble Shooting & Pressure Check, 5005 - Steering Pump, 5007 - Steering Control Valve, 5010 - Steering Cylinders, 5021 - Front Axle |
| Series - Power Train | 477-594 | 6211- Shuttle Controls, 6212 - Transaxle Removal & Installation, 6214 - Transaxle & Differential Lock, 6222 - Drive Shaft, 6229 - Wheels & Tires, 6406 - Clutch & Pressure Plate |
| Series - Brakes | 595-621 | 7106 - Brakes (Pedals to Transaxle), 7122 - Self Adjusting Differential Brakes |
| Series - Electrical | 622-698 | 8002 Trouble Shooting, 8003 - Wiring Diagrams, 8004 - Instrument Panel & Instrument Cluster, 8005 - Battery, 8006 - Starter & Starter Solenoid, 8007 - Alternator |
| Series - Mounted Equipment | 699-749 | 9010 - Loader, 9033 - Three Point Hitch, 9061 - Robs Cab & Canopy, 9100 - Backhoe |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Brake Pedal Free Travel | 1/16 - 3/16 inch (1.6 - 4.7 mm) | p. 598 |
| Engine Oil Capacity (Without Filter) | 6 quarts | p. 20 |
| Engine Oil Capacity (With Filter Change) | 7 quarts | p. 20 |
| Engine Oil Pressure (Warm, Rated Speed) | 50 to 70 Pounds | p. 6 |
| Fuel Tank Capacity | 22 gallons | p. 20 |
J I Case 480C Common Problems This Manual Covers
Case 480C loses drive in reverse but pulls fine forward on power-shuttle transmission
Pull the shuttle valve and inspect the reverse clutch pack for burned friction discs; charred material sheds into the sump and clogs the suction strainer. Pull and clean the strainer before refilling. Fill the transaxle with 20 quarts per the capacity spec on page 20, then bleed the shuttle circuit before road testing.
Manual Section: Series - Power Train p. 477Brake pedal travels to the floor before any braking pressure builds
Check brake pedal free travel first; it should read 1/16 to 3/16 inch (1.6 to 4.7 mm) per page 598. If travel is correct but the pedal still sinks, pull the master cylinder and inspect the bore for scoring and the cup seals for swelling or weeping. Replace the seal kit rather than honing an old bore, and bleed the system fully before returning to service.
Manual Section: Series - Brakes p. 598Rear brakes locked solid after the machine sat unused over winter
Remove the brake drum and check the ball-and-ramp expander for surface rust binding the balls in their pockets. Work the expander free, clean both ramp faces, and coat with a light film of anti-seize before reassembly. If oil is present in the drum, pull the axle seal per page 536 and press a new lip-up seal onto the shaft with #2 lithium gun grease before closing it up.
Manual Section: Series - Brakes p. 536Hard starting requiring ether, white smoke at idle, then stalls 15 to 20 minutes after warm-up
Check the injection pump drive shaft seals first per page 237; weeping seals let fuel and air mix and upset delivery once the pump warms up. Replace both seals with lubriplate, lips outward and back-to-back. While it's apart, check the pilot tube O-ring on page 232 and replace it, and inspect the vane-type transfer pump built into the pump housing (page 227) for a torn diaphragm causing the stall after warm-up.
Manual Section: Series - Fuel System p. 237Weak power under load with engine running rough across the full RPM range
Start with the engine troubleshooting procedures to rule out valve clearance and compression before touching the pump. Check intake valve tappet clearance cold at .012 inch per page 8 and adjust as needed. If clearances check out, suspect worn hydraulic head clearance in the Roosa Master pump or a sticking delivery valve, both of which cause the power loss described.
Manual Section: Series - EngineOil weeping into the brake drum causing hydraulic retarding or a wet brake housing
Pull the axle shaft and press a new lip-up seal per page 536, coating the lip with #2 lithium gun grease before installation. Reinstall the axle housing with a new O-ring in the housing groove per page 537, lubricated with SAE 90EP oil. Clean all old oil out of the brake drum before reassembly so contamination doesn't glaze the new friction surfaces.
Manual Section: Series - Brakes p. 536Frequently Asked Questions
What are the torque specs for the wheel lug nuts on a Case 480C?
The torque specifications for the wheel lug nuts on a Case 480C are 115-130 foot-pounds (155-176 N m). This applies to both front and rear wheels, and it is recommended to check the bolt torque every two hours until it stabilizes after a wheel has been removed and installed. p. 549
Why does a Case 480C start then die?
A Case 480C starting then dying, or failing to run, can be caused by several issues including a fuel shut-off not completely open, a plugged final air filter, air in the fuel system, or low fuel supply. Other potential causes include wrong or contaminated fuel, a clogged fuel filter, or malfunctioning fuel injection nozzles. p. 35
What are the common hydraulic problems with a Case 480C backhoe?
Common hydraulic problems for a Case 480C backhoe include the boom dropping too fast due to a missing or improperly installed restrictor in the B port of the boom section. A noisy pump can indicate loose mounting bolts, while sluggish movement in cylinders may be caused by worn piston packing. These issues are detailed in the troubleshooting charts. p. 298
How to troubleshoot Case 480C hydraulic leak
To troubleshoot a hydraulic leak in a Case 480C, check for external oil leakage from a worn seal or pump shaft, and replace the pump and seal if necessary. For spool leaks, a defective spool seal is the likely cause, and replacing the spool seal is the recommended remedy. p. 301
How will I receive this J I Case 480C, 480C Loader Backhoe Service Manual?
Instant PDF download. You get the full 749-page searchable Service Manual immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Are there any print restrictions on this J I Case 480C, 480C Loader Backhoe?
Yes. The PDF has no DRM restrictions, so print any page or section you need for your shop. Works with any standard printer.
Does this J I Case 480C, 480C Loader Backhoe manual cover the hydraulic system?
Full hydraulic system diagrams are included, covering circuits, valve locations, and hydraulic component specs for the J I Case 480C, 480C Loader Backhoe.
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