The hydrostatic drive is where an 85XT, 90XT or 95XT gets expensive. This manual covers it in detail: charge pressure tests, drive loop flow loss limits and the servo valve neutral adjustment, with real numbers.
The rest of the machine is covered too. That means the engine and turbocharger, the Bosch VE injection pump, the loader valve and bucket cylinders, brakes, the chain case, ROPS, and the backhoe, trencher and track options. Guessing at a weak drive or a drifting bucket can cost you a weekend and a pump you didn't need.
The book is split by system, so you go straight to Power Train or Hydraulics. The hydraulic schematic foldout is at the back on pages 1434-1435. The electrical schematic, with wire circuits and fuses, is on page 1436.
Complete the set for your 85XT, 90XT, 95XT
What's Inside This Case 85XT, 90XT, 95XT Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 6-25 | Standard Torque Specifications, Fluids and Lubricants, Metric Conversion Chart, Loctite Product Chart |
| Engines | 26-229 | Engine and Radiator Removal and Installation, Aftercooler, Cylinder Head and Valve Train, Cylinder Block, Lubrication System, Turbocharger |
| Fuel System | 230-273 | Fuel System and Filters, Fuel Injectors, Bosch Model VE Fuel Injection Pump |
| Electrical | 274-479 | Electrical How It Works, Removal and Installation of Electrical Components, Electrical Specifications and Troubleshooting, Battery, Starter, Alternator |
| Power Train | 480-793 | Hydrostatic How It Works, Removal and Installation of Power Train Components, Hydrostatic Troubleshooting, Drive Motors, Gear Box, Sprockets, Chains, And Axle Assemblies, Brakes, Brake Pump |
| Hydraulics | 794-1227 | Hydraulic System How It Works, Hydraulic System Troubleshooting, Loader Control Valve, Cylinders, High Flow Pump, Solenoid Valve for Hydraulic Coupler |
| Mounted Equipment | 1228-1433 | ROPS Canopy, Seat, And Operators Compartment, Heater, Backhoe (D125), Trencher, Steel and Rubber Track, Air Conditioning |
| Hydraulic and Electrical Schematic Foldout | 1434-1436 | Hydraulic Schematic (85, 90, 95XT), Electrical Schematic with Wire Circuits and Fuses |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Fuel tank capacity | 76.4 litres (20.2 U.S. gallons) (95XT) / 78.3 litres (20.7 U.S. gallons) (90XT) / 65.5 litres (17.3 U.S. gallons) (85XT) | p. 18 |
| Cooling system capacity | 16.5 litres (17.5 quarts) | p. 18 |
| Hydraulic system capacity | 66.2 litres (17.5 gallons) (95XT) / 64.4 litres (17.0 gallons) (90XT) / 62.4 litres (16.5 gallons) (85XT) | p. 18 |
| Chain compartment capacity, each side | 7.6 litres (8.0 quarts) | p. 18 |
| Engine crankcase oil capacity with filter change | 10.4 litres (11.0 quarts) | p. 18 |
| Drive chain size | 120 size (90XT, 95XT); 100 size (85XT) | p. 519 |
| Hydrostatic charge pressure | 22 to 26 bar (320 to 380 psi) at high idle, oil at least 49°C (120°F) | p. 556 |
| Maximum drive loop flow loss | 7.57 litre/min (2gpm) | p. 561 |
| Axle housing mounting nut torque | 223 to 265 Nm (165 to 190 pound-feet) | p. 563 |
| Loader control valve main relief pressure | 203 to 210 bar (2950 to 3050 psi) | p. 906 |
| D-125 backhoe control valve main relief pressure | 166 to 172 bar (2400 to 2500 psi) | p. 906 |
| Loader control linkage adjustment | 218 mm (8.58 inches) | p. 1234 |
| Fuse, interlock system/alternator | 10 amperes | p. 1436 |









