Part of the New Holland Repair Manuals.
Need the factory specs for your New Holland compact tractor? All 734 pages of this New Holland TC18, TC21D, TC24D repair manual PDF (OEM #87032528) focus on getting your machine out of the shop and back in the dirt. Open to full wiring diagrams, hydraulic circuit schematics, and a massive troubleshooting section covering hydrostatic transmission faults. You get step-by-step disassembly instructions for the 6 x 2 gear transmission, mid-mount PTO overhauls, and front axle backlash adjustments. Confirm your 3-cylinder S753 engine has a 75 x 72 mm bore and stroke before tearing into the single dry disc clutch assembly. Stop guessing at pump pressure test values and hardware torques. Download this bookmarked file right now, pull it up on your shop tablet, and fix the problem on the first try.
What's Inside This Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 13-46 | Introduction, Precautionary Statements, Safety, Tractor, Servicing the Tractor, Operating the Tractor, Driving the Tractor, Operating the PTO |
| Engine Systems | 47-152 | Engine Overhaul, Disassembly, Inspection, And Assembly of Component Assemblies, Engine Reassembly, Engine Lubrication System, Cooling System, Cooling System Overhaul |
| Single Clutch | 153-186 | Single Clutch Overhaul, Separating the Tractor - Between the Engine and Clutch Housing - 6 X 2 and 9 X 3 Transmissions, Servicing Clutch-Related Components, Troubleshooting |
| Transmission Systems | 187-280 | Introduction, X 2 Gear Transmission Description and Operation, X 2 Gear Transmission Overhaul |
| Front Axle - Front Wheel Drive | 281-296 | Front-Wheel Drive Front Axle Removal, Front-Wheel Drive Front Axle Installation, Backlash Adjustment, Troubleshooting - Front Axle, Specifications |
| Differential and Rear Axle | 297-318 | General Information, Overhaul, Specifications |
| Hydrostatic Transmission | 319-412 | Hydrostatic Transmission Description and Operation, Hydrostatic Transmission Overhaul, Hydrostatic Transmission Pressure Tests |
| Power Take-Off Systems | 413-430 | Standard Power Take-Off, Standard Power Take-Off Overhaul, Mid-Mount Power Take-Off, Mid-Mount Power Take-Off Overhaul, Specifications, Metric Bolt Torque Specifications |
| Brakes | 431-436 | Brakes and Final Pinion, Specifications, Brake Discs, Stators, Actuator Assembly, Brake Adjustment |
| Hydraulic System | 437-496 | Hydraulic System Circuits, Hydraulic System Circuits Overhaul, Hydraulic System Circuits Adjustments, Hydraulic Pump and Filter, Remote Control Valves |
| Steering System | 497-552 | Manual Steering System, Manual Steering System Overhaul, Power Steering System, Power Steering System Overhaul, Troubleshooting, Pressure Testing |
| Front Axle and Related Parts | 553-570 | Front Axle - Two-Wheel Drive, Front Axle - Two-Wheel Drive - Overhaul, Tread Settings, Weights, Wheels and Tires - Weight Limitation, Tire Inflation vs. Permissible Load |
| Electrical System | 571-708 | General Information and Components, Control and Safety Switches, Relays, Diodes, And Engine Electrics, Lighting and Instrument Panel, Starting and Charging Systems |
| Platform | 709-734 | General Platform Components, Operator Controls and Display, Seating and Safety Structure, Fuel System Component, Body Panels |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Specifications | 90 | p. 6 |
| Engine Model | S753 | p. 115 |
| Number of Cylinders | 3 | p. 115 |
| Clutch Type | Dry Disc | p. 185 |
| Number of Plates | One (1) | p. 185 |
| Clearance between differential pinion and pinion shaft | 0.1 - 0.3 mm (0.004 - 0.012 in.) | p. 296 |
| Wear Limit (differential pinion and pinion shaft) | 0.5 mm (0.020 in.) | p. 296 |
| cover retaining screws torque | 1.97 - 2.55 N·m (1.45 - 1.88 ft lbs) | p. 345 |
| retaining bolts torque | 16-19 N·m (12-14 ft lbs) | p. 346 |
| Hydrostatic Transmission Cover Screws | 2-2.5 N·m (1.4 - 1.9 ft lbs) | p. 408 |
| Shaft end play | 0.05-0.18 mm (0.002 - 0.007") | p. 417 |
| Coolant Temperature Sender Resistance at 35°C (95°F) | 670 ± 80 ohms | p. 611 |




















