All 196 pages of this Case 800B, 800, 801, and 803 Operator Manual (OEM #9-423) are written for one purpose: running and maintaining your diesel tractor the way the factory intended. You get the complete operating sequence from initial run-in through Case-O-Matic Drive procedures, a full lubrication section listing recommended lubricants with approximate capacities for every system, and wiring diagrams covering the complete electrical circuit. The troubleshooting section walks through engine starting problems, misfiring, power loss, stalling, and overheating, each broken down to probable causes and service suggestions. Fuel specs call out No. 2 Diesel for standard operation and detail cold-weather grade changes so your engine fires when the temperature drops. No more digging through a paper manual in a dirty cab. Bookmarked and keyword-searchable, jump straight to the Case-O-Matic section or pull up the wiring diagrams before you touch the machine.
Complete the set for your 800B, 800, 801…
What's Inside This Case 800B, 800, 801, 803 Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Serial Number | 6-8 | Number Plate, Instrument Panel, Engine Block, Model, Serial No. |
| General Specifications | 9-22 | Engine, Fuel Injection System, Cooling System, Electrical System, Case-O-Matic Drive, Hydraulic Control System |
| Diesel Engine Fuel | 23-34 | Fuel Specifications for a Suitable Number 2 Diesel Fuel, Fuel Recommendations for Cold Weather Operation, Fuel Handling and Storage |
| Lubrication | 35-58 | Recommended Lubricants and Approximate Capacities |
| Operating Instructions | 59-128 | Run-In Procedure, Operating Controls, Diesel Engine Starting, Stopping Engine, Cold Weather Operation, Case-O-Matic Drive |
| Important Checks During Operation | 129-132 | Fuel System Checks, Lubrication Points, Fluid Levels, Gauges and Indicators, Breathers, Brake Pedal Travel |
| Service Suggestions | 133-144 | Engine Starting Issues, Engine Misfiring, Engine Power Loss, Engine Stalling, Engine Overheating, Low Oil Pressure |
| Preventive Maintenance | 145-190 | Fuel System, Air Cleaner, Cooling System, Lubrication, Electrical System, Brake Adjustment |







