Part of the New Holland Operator Manuals.
Which oil goes in each sump of the TD3.50, and when it comes back due, is settled by one document: the 216-page New Holland TD3.50 operator manual PDF, factory publication 48153455 for this tractor. Maintenance fills roughly a quarter of the book, organized by hour interval from the daily engine oil check to the 3600 hour coolant change, with capacities and consumables listed for every reservoir. Troubleshooting tables trace the engine, electrical system, rear three-point hitch and hydraulic service brakes from symptom to probable cause, while separate chapters handle the PTO, remote valves, ballasting and road transport. Fill the rear transmission, hydraulic lift and PTO housing with 23.0 L, then pull your wheel disc lock nuts to 220 N·m. Guessing an interval is free until it costs a component. Print the pages you need, let them get greasy on the bench, and keep the tractor ready when the weather opens.
What's Inside This Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 9-20 | Note to the Owner, Advice, Abbreviation, Product Identification, Foreword, International Symbols, Noise Level |
| Safety Information | 21-60 | Personal Safety, Foreword, Safety Rules, Warning Indicators, Alarms, And Instruments - Personal Safety, Frame - Safety Rules, Note to the Owner |
| Controls and Instruments | 61-88 | Operator's Seat (Pneumatically-Adjusted Operator Seat - Store, Pneumatically-Adjusted Operator Seat - Adjust, Seat Restraints - Adjust) |
| Operating Instructions | 89-92 | Starting the Unit (Engine - Operating), Stopping the Unit (Brakes and Controls - Operating, Engine - Operating) |
| Transport Operations | 93-94 | Preparing for Road Transport (Brakes and Controls - Secure), Recovery Transport (Brakes and Controls - Tow) |
| Working Operations | 95-126 | One-Speed Rear Power Take-Off (Personal Safety, Operating, General Specification), Rear Hitch (Main Lift System - Control, Three-Point Hitch Control Valve - Operating) |
| Maintenance | 127-188 | Flexible Maintenance (Clutch - Check Clutch Adjustment, Brake Pedals - Check Adjusting Height of Service Brake Pedals, Alternator Drive System Belt - Check Alternator Belt Inspection, Air Cleaner - Check Air Filter Valve, External Lighting - Check Tractor Light, Hand Brake Lever - Adjust Handbrake, Engine Cooling System - Check Radiator Fluid Level, Radiator - Cleaning Clean the Radiator, Wheels - Check Tyre Pressure, Wheels - Check Wheel Disks Nut Torque) |
| Troubleshooting | 189-194 | Alarm (Remote Control Valve Closed Center Mechanical Remote Valve - Troubleshooting, Engine - Troubleshooting, Electrical System - Troubleshooting, Electrical Systems - Troubleshooting, Rear Three-Point Hitch - Troubleshooting, Hydraulic Service Brakes - Troubleshooting) |
| Specifications | 195-202 | Frame - Dimension, Frames and Ballasting - Weight, Frame - Weight, Wheels - General Specification, Electrical Systems - General Specification |
| Accessories | 203-208 | Beacon - Localization Overview, Fender - Localization Overview, Drawbars and Towing Hitches - Operating, Hitches, Drawbars, And Implement Couplings - General Specification |
| Forms and Declarations | 209-216 | Service Record 1st 50 Hour, Owner Copy, Dealer's Copy |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Battery Capacity | 80 Ah | p. 5 |
| Front tyre hub disc lock-nut torque | 220 N·m (162.26 lb ft) | p. 117 |
| Rear tyre hub disc lock-nut torque | 220 N·m (162.26 lb ft) | p. 117 |
| Hydrostatic steering fluid capacity | 2.0 L (0.5 US gal) | p. 135 |
| Rear transmission (bevel drive and brakes), gearbox, hydraulic lift and PTO capacity (without filter) | 23.0 L (6.1 US gal) | p. 135 |
| Transmission and hydraulic lift oil filter tightening | 3/4 of a turn by hand | p. 155 |
| Engine oil filter tightening | 3/4 of a turn, or a full turn at most | p. 165 |
| Fuel filter cartridge tightening | 3/4 of a turn (15 N·m) | p. 166 |
| Air filter cleaning compressed air pressure | less than 72.5 psi (5 bar) | p. 168 |
| Fuel tank capacity | 52 L | p. 131 |
| Engine oil capacity (with filter) | 6.0 L | p. 135 |
| Hydrostatic steering oil capacity | 2.0 L | p. 135 |















