All 660 pages of this New Holland TC33D service manual pdf focus on one thing: getting your 1530, 1630, 1725, 1925, and TC-series compact tractors back to factory condition. Open the electrical section to find complete wiring diagrams and individual circuit schematics for rapid fault tracing. You also get deep hydraulic system breakdowns, exploded views of the hydrostatic transmission, and extensive troubleshooting charts covering everything from the engine governor to the power steering assembly. Verify the system relief valve is set exactly to 147 bar and torque the hydraulic pump retainers to 28 N-m before testing the remote valves. Your machine is down. Get the right numbers directly from the factory source instead of relying on forum guesses. Download this bookmarked file right to your tablet and bring it straight to the shop floor.
Complete the set for your 1530, 1630, 1725…
- Parts Catalog: New Holland 1725 Compact Tractor Parts Catalog
- Operator Manual: New Holland 1530, 1630 Operator Manual — Wiring Diagrams
Other edition of this manual
What's Inside This New Holland 1530, 1630, 1725, 1925, TC25, TC29, TC33 Manual
| System | Pages | Key Topics |
|---|---|---|
| Engine Systems | 9-92 | Engine Overhaul, Disassembly, Inspection, Fits, Clearances, And Assembly of Component Assemblies, Engine Reassembly, Engine Lubrication System |
| Fuel System | 93-132 | Injection Pump, Timing and Governor Adjustment, Governor, Troubleshooting - Governor System, Injectors, Troubleshooting - General, Troubleshooting - Fuel Injectors |
| Electrical System | 133-309 | Battery and Fuses, Electrical System Components - Description and Testing, Individual Circuit Schematics, Individual Electrical Circuits |
| Clutches | 310-331 | Single Clutch, Adjustment, Double Clutch, Servicing Clutch-Related Components, Overhaul, Special Tools, Troubleshooting, Specifications |
| Transmission Systems | 332-403 | 9×3 Gear Transmission, Pressure Tests, Hydrostatic Transmission Gearbox, Hydrostatic Transmission, Bolt Torque Specifications, Special Tools, Troubleshooting, Specifications |
| Power Take-Off Systems | 404-423 | Description and Operation, Power Take-Off Overhaul, Mid-Mount Power Take-Off, Specifications |
| Differential, Rear Axle, and Brakes | 424-448 | Differential Overhaul, Rear Axle Overhaul, Brakes and Final Pinion Overhaul, Introduction, Bolt Torque Specifications, Specifications |
| Hydraulic System | 449-500 | Adjustments, Hydraulic Pump and Filter, Remote Valves, Introduction, Pressure Testing, Overhaul, Bolt Torque Specifications, Special Tools |
| Steering Systems Power Steering | 501-543 | Power Steering System, Power Steering System Overhaul, Pressure Testing, Special Tools, Troubleshooting, Specifications |
| Front Axle and Related Parts | 544-571 | Two-Wheel Drive, Front-Wheel Drive, Overhaul, Bolt Torque Specifications, Troubleshooting, Specifications |
| Super Steer, Front Axle, and Sensi Track | 572-633 | Supersteer, Front Axle, And Sensitrack, General Information, Pressure Testing, Overhaul, Troubleshooting |
| Wheels and Tires | 634-639 | |
| Separating the Tractor | 640-660 | Separating the Tractor Between the Front Axle and Axle Support, Separating the Tractor Between the Front Axle Support and Engine |
Every system also includes contents.
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hydraulic Pump Retainers torque | 22 - 28 N⋅m (16 - 20 ft lbs) | p. 499 |
| Clutch disc lining wear limit (from rivet head) | 0.3 mm (0.012″) | p. 316 |
| Clutch Mounting Bolts torque | 22.6 - 28.4 N⋅m (16.6 - 21 ft lbs) | p. 330 |
| Oil filter replacement interval | every 100 hours of operation | p. 56 |
| System Relief Valve Setting | 147 +/- 5 bar (2130 +/- 70 psi) | p. 498 |
| Double-Spool Remote Control Relief Valve Setting | 121 bar (1750 psi) | p. 498 |
| Engine Head Bolts Torque | 88 - 94 N⋅m (65.1 - 68.7 ft lbs) | p. 90 |
| Rear Wheel Bolts Torque | 169 N⋅m (125 ft lbs) | p. 639 |
| Cooling System Capacity | 5.6 Liters (5.9 Qts.) | p. 90 |
| Hydraulic System Reservoir Capacity | 32.5 L (8.6 gal) | p. 498 |
| Valve Lash | 0.2 mm (0.008 in.) | p. 84 |
| Piston Ring End Gap (1st Compression Standard) | 0.2 - 0.35 mm (0.008 - 0.014 in.) | p. 80 |
