Boomer 45, Boomer 50 and Boomer 55 Tier 4B (final) compact tractors, in both Cab and ROPS versions, are what this book covers. It is New Holland service manual 48144020, 1st edition English, June 2017, for North America. The PIN range for each model and version is printed on the cover, so check yours against it before you buy.
The manual covers the three-cylinder common rail diesel, the HST and 16 x 16 mechanical transmissions, the powered front axle, PTO, hydraulics with schematics, cab and ROPS wiring sheets, and fault codes.
It prints the figures you work to, such as 43.0 L (11.4 US gal) for the rear axle and transmission including hydraulics, and 176 - 196 N·m (130 - 145 lb ft) for the front wheel bolts and nuts.
What's Inside This New Holland Boomer 45, Boomer 50, Boomer 55 Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction and Specifications | 1-70 | Publication Applicability, Safety Rules, General Specifications, Consumables, Cab and ROPS Dimensions, Product Identification |
| Engine | 71-178 | Engine and Crankcase, Fuel Tanks and Filters, Fuel Injection, Air Cleaners, Intake and Exhaust Manifolds, EGR Exhaust Treatment, Cooling System |
| Clutch and Power Coupling | 179-214 | Clutch Mechanical Release Control, Thrust Bearing and Sleeve, Clutch Removal and Installation, Free Play Adjustment, Flywheel Damper |
| Transmission | 215-344 | 16 X 16 Mechanical Transmission, Fluid Change, External Shift Controls, Internal Gears and Shafts, Transmission Housing |
| Four-Wheel Drive and Front Axle | 345-450 | 4WD Drive Shaft and Control, Powered Front Axle, Front Bevel Gears and Differential, Final Drive Hubs, Steering Knuckles |
| Rear Axle System | 451-504 | Rear Bevel Gear Set, Rear Differential, Differential Lock, Bevel Pinion, Differential Backlash, Planetary Final Drives |
| Hydrostatic Drive | 505-622 | Hydrostatic Control, Reservoir, Cooler and Lines, Pump and Motor Components, Hydrostatic Transmission, Pressure Testing, HST Troubleshooting |
| Power Take-Off (PTO) | 623-698 | Rear Mechanical and Electro-Hydraulic Control, One-Speed Rear PTO, Central PTO, PTO Clutch, Pressure Testing, Troubleshooting |
| Brakes and Controls | 699-748 | Parking Brake, Mechanical Service Brakes, Brake Linkage, Brake Discs, Brake Control Adjustment, Brake Pedals |
| Hydraulic Systems | 749-898 | Hydraulic Schematics, Reservoir and Filters, Fixed Displacement Pump, Relief Valves, Remote Control Valves, Three-Point Hitch Control Valve, Front Loader Control |
| Hitches, Drawbars and Implement Couplings | 899-952 | Drawbars and Towing Hitches, Rear Three-Point Hitch Controls, Hitch Linkage Adjustments, Hitch Troubleshooting |
| Steering and Wheels | 953-1060 | Steering Control, Tie Rods, Steering Cylinders, Steering Pump, Front and Rear Wheels, Tire Pressures and Wheel Torque |
| Cab Climate Control | 1061-1178 | Heating, Ventilation, Air Conditioning, Cab Pressurizing System, Climate Control Diagnosis |
| Electrical Systems: Harnesses and Schematics | 1179-1541 | Electrical Component Localization, Wiring Harness Identification, Cab and ROPS Electrical Schematic Sheets, Connector Diagrams |
| Electrical Controls, Starting and Charging | 1542-1699 | Cab Engine Controls, Starting System, Alternator and Battery, Fuel Tank Electrical, EGR Electrical, Electronic Modules, Transmission and PTO Controls |
| Fault Codes | 1700-2102 | Injector and Fuel Rail, Oil Pressure, Intake and Coolant Sensor, EGR and DPF, ECU Internal and CAN Fault Codes, Diagnostic Tests |
| Platform, Cab, Bodywork and Special Tools | 2103-2209 | Cab Removal and Installation, Operator Platform, Operator Protections, Seat, Engine Hood and Panels, Fenders, Special Tool Index |
| Electrical Schematics (ROPS and Cab) | 2210-2213 | ROPS Electrical Schematic 48090748, Cab Electrical Schematic 48090749, Power and Ground Distribution, Lighting, CAN Network |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine gross power, Boomer 45 | 33 kW (45 Hp) | p. 50 |
| Engine gross power, Boomer 50 | 37 kW (50 Hp) | p. 50 |
| Engine gross power, Boomer 55 | 41 kW (56 Hp) | p. 50 |
| Engine displacement | 1879 cm³ (114.7 in³) | p. 50 |
| Engine low idle speed | 850 RPM | p. 50 |
| Fuel tank capacity | 47 L (12 US gal) | p. 50 |
| Engine oil capacity with filter | 5.0 l (5.3 US qt) | p. 95 |
| Rear axle and transmission capacity, includes hydraulics | 43.0 L (11.4 US gal) | p. 50 |
| Front axle capacity | 8.0 L (2.1 US gal) | p. 50 |
| Radiator cap pressure | 90 kPa (13 psi) | p. 51 |
| Hydraulic safety relief valve setting | 19609 kPa (2844 psi) | p. 755 |
| Hydraulic pump capacity at full throttle | 31.2 L/min (8.2 US gpm) @ 2600 RPM | p. 755 |
| Engine speed for 540 RPM rear PTO, HST | 2409 RPM | p. 53 |
| Engine speed for 2000 RPM mid PTO (optional), HST | 2563 RPM | p. 53 |
| Front agricultural tire | 9.5 x 16, R1 | p. 56 |
| Rear agricultural tire | 13.6 x 24 , 4PR, R1 | p. 56 |
| Weight with ROPS, less tires, HST (FWD) | 1583 kg (3490 lb) | p. 62 |
| Weight with cab and R1 Ag tires, HST (FWD) | 1945 kg (4288 lb) | p. 64 |
| Front wheel bolts and nuts torque | 176 - 196 N·m (130 - 145 lb ft) | p. 1048 |
| Front frame M14 bolts torque (engine install) | 140 N·m (103 lb ft) | p. 88 |












