Spanning 947 pages, this New Holland Boomer 8N service manual PDF (OEM #84307374) breaks down the complete engine, CVT transmission, and PTO systems for your tractor. You get access to complete hydraulic schematics outlining the mechanical lift assembly, full electrical wiring diagrams, and a detailed troubleshooting section covering every fault code. Open to the transmission chapter to find step-by-step rebuild procedures for the forward/reverse shuttle clutch and variator assembly. Verify your PTO clutch disc thickness is exactly 2.2 mm before you lock down the M12 variator assembly bolts to 90-100 N-m. Stop hunting down transmission calibration steps on internet forums. Download this bookmarked file directly to your shop tablet, search for your specific New Holland Boomer 8N spec, and get back to turning wrenches.
Complete the set for your Boomer 8N, New Holland Boomer 8N
- Operator Manual: New Holland Boomer 8N Operator Manual
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 2-37 | Precautionary Statements, Technical Information, Hardware, Safety Decals, Universal Symbols, Specifications |
| Engine | 38-171 | Specifications, Cylinder Block, Cylinder Head, Piston, Crankshaft, Lubrication System |
| Transmission | 172-259 | Front Transmission Box, Forward/Reverse Shuttle Clutch, Variator, Hydraulic Pump, Park Lock Control, CVT Transmission Sensors, Valves and Switches |
| FWD Front Axle | 260-291 | Specifications, Front to Rear Axle Ratio, Gear Reduction Drop Box, Differential, 4WD Engage/Disengage Theory of Operation |
| Differential and Rear Axle | 292-341 | Specifications, Differential, Differential Lock, Drive Pinion, Secondary Pulley Output Shaft, Rear Axle |
| Power Take-Off (PTO) Systems | 342-399 | Specifications, PTO Hydraulic System, PTO Clutch, Rear PTO, PTO Activation Electrohydraulic Circuit, Mid PTO |
| Brakes | 400-419 | Specifications, Brake Discs, Stators, Brake Pedal Components, Park Brake, Adjustment |
| Hydraulic System | 420-523 | Specifications, Hydraulic Pump, Filter, Mechanical Hydraulic Lift Assembly, Hydraulic Control Valve, Piv Manifold Block |
| Steering | 524-573 | Power Steering System, Power Steering Operation, Steering Cylinder, Control Motor, Power Steering Pump, Pressure Relief Valve |
| Electrical | 574-917 | Electrical Schematics, Starting Circuit, Glow Plug Circuit, Headlights Circuit, Charging Circuit, Fault Codes |
| Platform | 918-947 | Hood, Rear Hood Panel, Dash Console, Seat, ROPS, Fuel Tank |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| PTO Clutch Disc Quantity | 3 discs | p. 344 |
| PTO Clutch Standard Clutch Disc Thickness | 2.2 mm (0.086 in) | p. 344 |
| M12 Bolt, Variator Assembly Torque | 90--100 N⋅m (66--74 lb ft) | p. 206 |
| Retaining Bolt, Transmission Release Control Torque | 20--25 N⋅m (15--19 lb ft) | p. 206 |
| Oil seal installation depth (from outer most surface of housing) | 2 mm | p. 277 |
| Engine Gross Horsepower | 33.6 kW (45 Hp) | p. 23 |
| Engine Displacement | 2.2 L (135.2 cu in) | p. 344 |
| Fuel Tank Capacity | 49.2 L (13 US gal) | p. 23 |
| Cooling System Capacity | 9.0 L (9.6 US qt) | p. 23 |
