From engine overhaul through hydrostatic transmission, PTO, and hydraulic circuits, this Ford 1320, 1520, 1720 repair manual PDF walks all three compact tractors end to end across 519 pages under OEM ID 40132030. Wiring diagrams trace the charging, starting, and glow plug circuits, so an electrical fault leads back to a switch or connector instead of a guess. The Hydraulic System and Power Steering chapters cover the lift, remote valve, and power steering circuits, while troubleshooting charts pair each symptom with the test that rules it in or out. Set cold valve clearance to 0.008 in. (0.2 mm), and verify the relief valve opens at 2130 ± 70 psi before you condemn the pump. Nobody splits a tractor twice on purpose. Bookmarked and keyword-searchable, the PDF lands you on the clutch section in two clicks, leaving the weather window for the work itself.
What's Inside This Ford 1320, 1520, 1720 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Engine Systems | 8-40 | Engine and Lubrication System |
| Cooling System | 41-61 | Cooling System - Overhaul, Trouble Shooting, Specifications and Special Tools |
| Fuel System | 62-72 | Injection Pump |
| Injectors | 73-81 | Description and Operation, Removal and Installation, Overhaul, Assembly and Adjustment |
| Electrical System | 82-138 | Wiring, Switches, Glow Plugs and Instrumentation, Battery, Starting Systems, Charging System, Alternator, Trouble Shooting and Specifications |
| Clutches | 139-161 | Servicing Clutch Related Components |
| Transmission Systems | 162-249 | 9 X 3 Gear Transmission - Model 1320-1520, Hydrostatic Transmission - Model 1320-1520, Hydrostatic Transmission Gearbox - Model 1320-1520 |
| Power Take-Off Systems | 250-268 | Power Take-Off Systems Model 1320-1520, Mid-Mount Power Take-Off Model 1320-1520, Power Take-Off System Overhaul |
| Differential, Rear Axle and Brakes | 269-290 | Differential Assembly, Rear Axle and Brakes, Differential Lock |
| Hydraulic System | 291-335 | Hydraulic System Circuits, Hydraulic Pump and Filter, Remote Valve |
| Steering Systems | 336-357 | Power Steering System, Trouble Shooting, Testing and Specifications |
| Front Axle and Related Parts | 358-381 | Front Axle and Related Parts - Two Wheel Drive |
| Wheels and Tires | 382-392 | Tread Setting, Weight Limitations |
| Separating the Tractor | 393-519 | Transmission Removal and Installation, Rear Axle Center Housing Removal and Installation |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Cylinder Head Warpage Limit | 0.005 in. (0.12 mm) | p. 15 |
| Valve Clearance (Cold) | 0.008 in. (0.2 mm) | p. 20 |
| Cylinder Head Bolt Torque | 65-69 lbs. ft. (88-94 Nm) | p. 19 |
| Compression Pressure | 427 ± 50 lbs. | p. 61 |
| Hydraulic System Relief Valve Setting | 2130 ± 70 psi | p. 335 |
| Steering Cylinder Stroke (2WD) | 7.29 in. ± 1/16 | p. 356 |
Ford 1320, 1520, 1720 Common Problems This Manual Covers
Ford 1520 overheats brush hogging or heavy mowing, temperature gauge in the red, coolant boiling over
Clean the radiator screen and blow chaff out of the fins from the engine side, then check fan belt tension and the thermostat using the cooling troubleshooting steps on page 49. After a hard overheat, pull the cylinder head and check warpage; resurface or replace the head if it exceeds 0.005 in. (0.12 mm).
Manual Section: Cooling System p. 49Three-point hitch won't lift or raises too slow with implement attached, lift arms drop under load
Check hydraulic oil level and replace a plugged filter before condemning the pump. Tee a gauge into the system and test relief pressure; you want 2130 ± 70 psi against the spec on page 335. If pressure stays low with a clean filter, work through the pump checks in the Hydraulic System section starting on page 291.
Manual Section: Hydraulic System p. 335Engine cranks but won't start, or fires briefly and dies as soon as key releases
Check the fuse and power feed to the fuel cutoff solenoid first; a dead solenoid cuts fuel at the injection pump. Verify fuel reaches the pump using the Fuel System procedures starting on page 62. If fuel and glow plugs check good, run a compression test; the gauge should read 427 ± 50 lbs. per page 61.
Manual Section: Fuel System p. 62Engine down on power under load, rough idle and more exhaust smoke than normal
Check the air filter and both fuel filters first, then set valve clearance cold to 0.008 in. (0.2 mm) with the adjustment procedure on page 20. Recheck cylinder head bolt torque at 65-69 lbs. ft. (88-94 Nm) per page 19 if the head has been off, then follow the Engine Systems service procedures on page 10.
Manual Section: Engine Systems p. 20Frequently Asked Questions
What is the torque specification for the cylinder head bolts on the Ford 1320, 1520, and 1720 tractors?
The cylinder head bolts for the Ford 1320, 1520, and 1720 tractors should be tightened in steps to a final torque specification of 65-69 lbs. ft. (88-94 Nm). p. 19
What is the correct valve clearance for the Ford 1320, 1520, and 1720 tractors?
The valve clearance for these models should be adjusted to 0.008 inches (0.2 mm) when the engine is cold. p. 20
What is the recommended coolant mixture for the Ford 1320, 1520, 1720 cooling system?
The cooling system should be filled with a 50/50 mixture of ethylene-glycol antifreeze and pure water to provide maximum cooling efficiency and freezing protection down to -33°F. p. 41
What is the specified alternator belt deflection on the Ford 1320, 1520, 1720?
The alternator drive belt should be adjusted to obtain a belt deflection of 0.200 inches (5 mm) when a force of 2.2 lbs (1 kg) is applied midway between the pulleys. p. 47
What is the compression pressure for the Ford 1320, 1520, 1720 engine cylinders?
The compression pressure for the engine cylinders should be 427 ± 50 lbs. There should not be more than 50 lbs. variation between cylinders. p. 61
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