Part of the Kubota Repair Manuals.
This Kubota Shop Manual covers the Z442-B (E), Z482-B (E), D662-B (E), and D722-B (E) diesel engines, the compact powerplants used in Kubota zero-turn mowers and other equipment. It is the factory service reference for owners and independent mechanics who want to diagnose and repair these engines themselves.
Across 100 pages you get specifications, performance curves, dimensions, and a full breakdown of the engine mechanism: lubricating, cooling, fuel, and electrical systems. The disassembling and servicing chapters walk through tightening torques, troubleshooting, servicing specifications, and step-by-step teardown of the engine body, injection pump, and nozzles.
With this manual you can set valve clearance, check compression, torque head and connecting rod screws, service the fuel and cooling systems, and rebuild the engine to factory limits. Delivered as a downloadable PDF you can read on any device or print.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Specifications | Combustion Chamber, Fuel Injection Pump, Governor, Injection Nozzle, Lubricating System, Lubricating Filter, Cooling System, Starting System | |
| Performance Curves | Brake Horsepower, Torque Curves, Fuel Consumption (B.S.F.C.), Sae and Din Ratings | |
| Dimensions | Overall Length, Width and Height, Flywheel Housing, Mounting Holes | |
| Mechanism | Engine Body, Lubricating System, Cooling System, Fuel System, Electrical System | |
| Disassembling and Servicing | Engine Body, Lubricating System, Cooling System, Fuel System, Electrical System |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Cylinder head screw tightening torque | 37.3 to 42.2 N-m | p. 37 |
| Nozzle holder assembly tightening torque | 49.0 to 68.6 N-m | p. 37 |
| Changing fuel filter cartridge interval | Every 400 hours | p. 46 |
| Cleaning air filter element compressed air pressure | under 205kPa (2.1 kgf/cm², 30psi) | p. 49 |
| Changing oil filter cartridge interval | Every 200 hours | p. 46 |
| Lubricating Oil Capacity (D662-B E, 101 mm pan) | 3.2 L (3.4 U.S.qts.) | p. 7 |
| Stroke | 68 mm | p. 9 |
| Radiator cap tightness (pressure falling time) | More than 10 seconds for pressure fall from 88 to 59 kPa | p. 88 |
| Fan belt tension (deflection) | 7.0 to 9.0 mm / 98N | p. 49 |
| Battery | 12 V, 35 AH, equivalent | p. 7 |
| Glow plug resistance | Approx. 0.9 Ω | p. 45 |
| Cylinder Head Screw Torque | 37.3 to 42.2 N-m | p. 37 |
| Connecting Rod Screw Torque | 26.5 to 30.4 N-m | p. 37 |
