Part of the Case Repair Manuals.
Looking for the factory procedures to rebuild your Case skid steer? This massive 884-page Case 1835 Uni-Loader, 188 Diesel Engine, 148G Spark Ignition, G188D service manual PDF (OEM #9-68700) covers every inch of your machine. Inside, you get complete hydraulic schematics for the hydrostatic drive, full wiring diagrams to trace electrical faults, and extensive troubleshooting charts for both power plants. Open to page after page of step-by-step rebuild procedures for the dual gear pump, cylinders, and control valves. Verify your engine tolerances by checking the cylinder sleeve inside diameter against the factory 3.8125 to 3.8115-inch limit, and confirm your dual gear pump pushes exactly 11 U.S. gpm at 2250 psi. Wasted time in the shop burns cash. Grab this bookmarked download, pull it up on your shop tablet, and start turning wrenches.
What's Inside This Case 1835, 188 Diesel Engine, 148G Spark Ignition, G188D Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 7-50 | Decals and Painting |
| Engine – 188D Diesel | 51-256 | Engine Diagnosis, Engine Tune-Up, Cylinder Head, Valve Train and Camshaft, Cylinder Block, Sleeves, Pistons and Rods, Crankshaft, Bearings and Oil Seals, Oil Pump, Air Cleaner and Muffler, Ether Injection, Cooling System |
| Engine – 148G Spark Ignition | 257-438 | Engine Tune-Up, Cylinder Head, Valve Train and Camshaft, Cylinder Block, Sleeves, Pistons and Rods, Crankshaft, Bearings and Oil Seals, Oil Pump, Cooling System |
| Engine Lubrication | 439-444 | Engine Lubricating Oil and Coolant System, Oil Pump Flow |
| Fuel System | 445-530 | Fuel Filters 188D Diesel, Fuel Injection Pump, Fuel Injectors, Engine Controls, Fuel Lines, And Fuel Tank, Carburetor |
| Electrical System | 531-656 | Electrical System Specifications and Troubleshooting, Wiring Diagram, Gauges, Battery, Starter and Solenoid, Alternator, Spark Ignition System, Electrical Accessories |
| Power Train | 657-766 | Hydrostatic Troubleshooting, Testing, And Adjustments, Hydrostatic System Diagrams and Operation, Piston Pumps, Hydrostatic Motor, Hydrostatic Controls, Drive Sprockets and Chains |
| Brakes | 767-770 | Parking Latch |
| Hydraulic System | 771-864 | Hydraulic Diagrams, Maintenance and Troubleshooting, Dual Gear Pump, Equipment Control Valve, Auxiliary Control Valve, Cylinders |
| Mounted Equipment | 865-884 | Loader, Auxiliary Hydraulic Installations, ROPS Canopy |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Dual Gear Pump Rated Output | 11 U.S. gpm at 2250 psi at 2200 rpm (41.6 L/min at 15 513 kPa) | p. 805 |
| Dual Gear Pump Bushing I.D. (max) | .691 Inch (17.5 mm) | p. 813 |
| Cylinder Sleeve I.D. | 3.8125 to 3.8115" | p. 21 |
| Piston Rings No. 1 Compression End Gap | .015 to .025" | p. 21 |
| Fuel Injector Clamp Capscrews Torque | 18 to 22 ft. lbs. | p. 480 |
| Fuel Injection Pump Idler Gear to Fuel Pump Gear Backlash | .0005 to .007" | p. 451 |
| Timing Gear Cover Sealant | RTV108 (Case Part Number M20704) | p. 278 |
| Oil Pan Gasket Sealant | No. 2 Permatex | p. 205 |
| Hydraulic Oil Operating Temperature Range | 130 - 150°F (54 - 66°C) | p. 787 |
