Wrenching on a 1990-1995 Ford commercial mower? This 281-page Ford CM224, CM274 service manual PDF (OEM #40022420 590) walks you through the diesel engine, injection pump, hydrostatic drive, transaxle, power steering, and 60-inch deck from teardown to final adjustment. Inside: factory wiring diagrams for switches, glow plugs, instrumentation, and both charging system variants, plus hydraulic schematics for the drive and lift circuits. You also get troubleshooting charts, injection pump timing procedures, and pressure check specs for the hydrostatic system. Torque the blade bolts to 97-108 lb-ft (132-145 Nm), set new blade tip clearance at 1/16 inch, and swap blades at the 3/8-inch wear limit. Thirty-year-old iron deserves better than forum guesswork. Bookmarked by system and searchable by keyword; pull it up on your phone in the shop and get back to mowing.
What's Inside This Ford CM224, CM274, FM 60 Manual
| System | Pages | Key Topics |
|---|
| Engines Systems Models CM224 & CM274 | 13-70 | Engine and Lubrication System, Description and Operation, Engine Overhaul, Cooling System, Overhaul, Trouble Shooting, Specifications and Special Tools |
| Fuel System | 71-92 | Injection Pump, Description and Operation, Removal and Installation, Timing, Fuel Pump and Governor Overhaul, Injectors, Overhaul |
| Electrical Systems | 93-152 | Wiring, Switches, Glow Plugs and Instrumentation, Description and Operation, Overhaul, Battery, Maintenance and Tests, Starting System |
| Hydrostatic Drive System | 153-180 | Hydrostatic Drive, Description and Operation, Overhaul, Hydrostatic Drive Control Linkage, Adjustments, Pressure Checks, Trouble Shooting and Specifications, Trouble Shooting |
| Transaxle and Brake | 181-204 | Transaxle, Brake, Differential Lock, PTO Output Shaft, Range Gearbox, Pinion |
| Steering and Rear Axle | 205-242 | Power Steering System, Description and Operation, Overhaul, Pressure Test, Rear Wheel Drive Axle, Trouble Shooting and Specifications, Trouble Shooting, Specifications |
| Implement Drive | 243-248 | PTO Lever, PTO Output Shaft, Center Gearbox, Belt Pulley, Idler, Blade Carriers |
| Hydraulic Lift System | 249-264 | Hydraulic Pump, Control Valve, Weight Transfer Valve, Lift Cylinder, Relief Valve |
| Wheels and Tires | 265-268 | Wheels, Tires, Rims, Weights |
| Mower | 269-281 | Inch Mower, Description and Operation, Overhaul, Specifications |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| Used motor oil | may cause skin cancer | p. 5 |
| Oil Pump Volume | .8 gal (3.2L) | p. 64 |
| Blade Tip Clearance New | 1/16″ (1.61 mm) | p. 277 |
| Blade Tip Clearance Wear Limit | 3/8" (10.0 mm) | p. 277 |
| Blade bolt torque | 97-108 lbs. ft. (132-145 Nm) | p. 280 |
| Engine Number of Cylinders | 3 | p. 57 |
| Engine Rated Speed | 2500 rpm | p. 57 |
| Engine Idle Speed | 800-900 rpm | p. 57 |
| Engine Compression Pressure @ 200 rpm | 427 ± 50 psi | p. 57 |
| Oil Pump Pressure Relief Valve Opening Pressure | 42.66-49.7 psi | p. 64 |
| Cooling System Drive Belt Deflection | 3/16 inch (5 mm) | p. 64 |
| Radiator Cap Pressure Rating | 13 psi (.9 bar) | p. 64 |
