Part of the Kubota Repair Manuals.
This is the Kubota Workshop Manual for the W821SC-AU, W821S-AU, and W819P-AU walk behind mowers. It covers the Honda GXV160 and Kohler XT-7 engines fitted to these machines and runs 98 pages with a searchable text layer.
The book is organized into information and safety, general identification and torque data, maintenance, the reaping portion with the mower blade and clutch, and a full engine section. You get specifications for each model, maintenance check lists, tightening torques, blade and clutch service, and engine troubleshooting for the fuel, governor, and lubrication systems.
Use it to keep a W821 or W819 running right: adjust the drive and blade clutch, service the engine, set correct blade bolt torque, and follow the maintenance schedule for your exact model instead of guessing at intervals and settings.
Complete the set for your W821SC-AU, W821S-AU, W819P-AU
- Operator Manual: Kubota W821S-AU, W821SC-AU Lawn Mower Operator Manual
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Information | 3-12 | Safety First, Safety Decals (W821Sc-Au, W821S-Au, W819P-Au), Specifications (W821Sc-Au, Accesories (Items in the Package) |
| General | 13-20 | Identification, Lubricants and Fuel, Tightening Torques (Stud Bolts), Special Tools |
| Maintenance | 21-29 | Inspection and Adjustments, Check and Maintenance |
| Reaping Portion | 30-40 | Mechanism (Mower Blade Clutch W821SC-Au, W821S-Au, Braking, Mowing, Mower Blade W819) |
| Engine | 41-98 | Safety, Specifications, Tools and Aids, Troubleshooting, Air Cleaner/Intake, Fuel System, Governor System, Lubrication System |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| General Use Screws, Bolts and Nuts (M6, No-grade or 4T) | 7.9 to 9.3 N·m | p. 19 |
| General Use Screws, Bolts and Nuts (M8, No-grade or 4T) | 18 to 20 N·m | p. 19 |
| Engine Oil Capacity (mower) | 0.65 L | p. 10 |
| Blade Setting Bolt Torque | 29 to 39 N·m | p. 25 |
| W821SC-AU, W821S-AU, W819P-AU | ||
| Engine Oil Capacity | 0.65 L | p. 18 |
| W821SC-AU, W821S-AU | ||
| Fuel Tank Capacity (W821SC-AU, W821S-AU) | 1.8 L | p. 18 |
| Engine oil check (W821SC-AU, W821S-AU) | Every time | p. 23 |
| Engine oil replace (W821SC-AU, W821S-AU) | Every 50 hours (first time 25 hours) | p. 23 |
| Mowing Width (W821SC-AU, W821S-AU) | 530 mm | p. 10 |
| Gearshift Lever Play | 1 to 3 mm | p. 28 |
| W819P-AU | ||
| Fuel Tank Capacity, W819P-AU | 1.4 L | p. 10 |
| Mowing Width, W819P-AU | 480 mm | p. 11 |



















