Part of the New Holland Repair Manuals.
An hour from now you could have a Bale Command Plus fault half traced with this New Holland BR740 repair manual PDF open beside the harness, 1096 pages of factory service data (OEM 87352298) covering all four BR Series round balers, 740 through 780. Electrical coverage runs 186 pages: harness routings, connector pinouts, and component tests that finish at a reading you can verify with a meter. Hydraulic schematics map the tailgate lift, belt tension, and pickup lift circuits, and the driveline chapters take the gearbox and slip clutches apart down to the bearings. Square the tailgate against the factory inside dimension of 1562.5 mm (61.5 in), then pull the wheel nuts on 19/45-17 rubber to 380 N·m (280 ft.-lbs.). A guessed torque figure shears studs a mile from the shop. The text-searchable, bookmarked PDF is bought once and stays with the baler; download it and bale while the weather holds.
What's Inside This New Holland BR740, BR750, BR770, BR780 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 39-84 | Precautionary Statements, Safety, Safety Decals |
| Implement Driveline | 85-210 | PTO Driveline, Gearbox, Clutches, Drives |
| Hydraulics | 211-276 | Tailgate Lift System, Belt Tension System, Feeding - Pickup Lift Cylinder/Rotor Knives and Reverse Cylinders, Lubrication - Greaselines and Oiler |
| Frame | 277-344 | Tailgate |
| Axles and Wheels | 345-350 | Axle, Tire Pressure, Wheel Torque, Wheel Bearings |
| Electrical Systems | 351-536 | Harness and Connectors, Components - Operation, Location and Testing, Bale Command Plus Electrical System, Auto Wrap Electrical System, Lights |
| Pickups | 537-752 | Standard Pickup, Wide Pickup with Stuffer 1.5 M, Wide Pickup with Stuffer 1.8 M and 2.1 M, Wide Pickup with Rotor 2.1 M |
| Pressing | 753-966 | Take Up Arm, Belts, Starter Roll, Stationary Roll, Floor Roll, Belt Rolls, Sledge Assembly, Bale Slice Roll (BR740 and BR780) |
| Wrapping | 967-1078 | Net Wrapper Mechanical System, Twine Wrapper Mechanical System, Auto Wrap System |
| Ejection | 1079-1082 | Bale Ejector |
| Shielding | 1083-1096 | Side Doors, Net and Twine Boxes |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Cam follower bearing torque | 61 N⋅m (45 ft.-lbs.) | p. 51 |
| Pickup finger torque | 15 N⋅m | p. 51 |
| PTO on gearbox torque | 142 N⋅m (105 ft.-lbs.) | p. 51 |
| Tailgate inside dimension | 1562.5 mm (61.5") | p. 297 |
| Tailgate spring length | 211 mm (8-5/16") | p. 299 |
| Wheel nut torque (19/45-17 tire) | 380 N⋅m (280 ft.-lbs.) | p. 346 |
| Wheel lug bolt torque (11L-14, 31-13.5x15 tires) | 156 N⋅m (115 ft.-lbs.) | p. 346 |
New Holland BR740, BR750, BR770, BR780 Common Problems This Manual Covers
New Holland BR750 baler tailgate raises halfway then stops, will not open fully to dump the bale
Check tractor remote flow and oil level, then trace the lift circuit on the hydraulic schematic for a pinched hose or sticking lock valve. If the gate binds partway up, measure the tailgate inside dimension against the 1562.5 mm (61.5 in.) spec on page 297; a sprung gate drags going up.
Manual Section: HydraulicsBale density stays loose no matter the setting, belts slip and bales fall apart
Verify the density gauge builds and holds pressure with the tailgate latched; if it bleeds down, follow the belt tension circuit on the hydraulic schematic to find internal leakage. Inspect belts for glazing and stretched splices, and check tailgate spring length against the 211 mm (8-5/16 in.) spec on page 299 so the gate seats tight.
Manual Section: Hydraulics p. 211Hay feeds ragged into the chamber, pickup teeth missing and poly bands cracked or worn through
Inspect the pickup bands for cracks and replace any tooth that is bent or missing; torque replacement pickup fingers to 15 N⋅m per the chart on page 51. Reinstall guards and tighten the pickup guard screws to 15 to 18 N⋅m as shown on page 543. Worn bands snag hay and starve one side of the chamber.
Manual Section: Pickups p. 543Driveline slip clutch chatters in heavy windrows, pickup and rotor stall under load
Check the slip clutch setting before heavy silage: standard pickup clutch torque is 316 N⋅m, sled clutch runs 677 to 767 N⋅m, both on page 51. Drain and refill the gearbox with 0.65 L of oil per page 110, and grease the driveline so a chattering clutch does not cost you a harvest afternoon.
Manual Section: Implement Driveline p. 110Frequently Asked Questions
How do I clear an error code on a New Holland BR770 baler?
To clear an error message and alarm on the Bale Command Plus system, press the 'CLEAR' key on the operator's panel. This will cancel the audible alarm and the error display message. p. 421
What is the gearbox oil capacity for the BR740, BR750, BR770, and BR780 balers?
The gearbox oil capacity for these baler models is 0.65 liters (22 oz.) of 80W-90 API GL5 gear lube. p. 110
What is the wheel lug bolt torque spec for a New Holland BR740, BR750, BR770, BR780 baler with 19/45-17 tires?
The torque specification for wheel lug bolts on balers equipped with 19/45-17 tires is 380 N⋅m (280 ft.-lbs.). p. 346
What is the correct procedure for checking the main drive slip clutch torque on a BR780 baler?
To check the main drive slip clutch torque, install the main clutch checking tool and attach a spring scale to the handle. Pull the spring scale at a right angle until the clutch slips; for a 1000 RPM unit, the pull should be between 47 and 64 Kg (104 and 141 lbs.). p. 153
What format is this New Holland BR740–BR780 Series manual in?
You download the Repair Manual yourself: 1096 pages, searchable PDF, available immediately. Keep a copy on every device you use.
Is this New Holland BR740–BR780 Series manual print-friendly?
Yes. The PDF is DRM-free, so printing works from any reader and any printer.
Are hydraulic system diagrams in this New Holland BR740–BR780 Series manual?
Full hydraulic diagrams are included, covering pump and valve circuits plus the pressure specifications for each. Page 55 carries one of them.
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