Part of the New Holland Repair Manuals.
A knotter that drops every third knot in the middle of first cutting does not wait for a dealer appointment. This New Holland BB900 repair manual, publication 86614937, is the factory shop reference for the self-powered BB900 big square baler and its Deutz F4L912 engine, delivered as a bookmarked 766 page PDF you download right after checkout.
Inside are the teardown and adjustment procedures a farm shop actually uses: knotter trip system operation and drive chain replacement, plunger bearing and rail work with factory clearance limits, pickup and feeder repair, clutch and gearbox service, hydraulic bale density valve repair, and electrical coverage from the starting circuit to the work lights.
Print the pages you need, clip them above the bench, and let them get greasy. The point is getting the baler back in the windrow before the weather turns, not keeping a book clean.
What's Inside This New Holland BB900 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 17-48 | Specifications and Capacities Tables, Adjustment and Clearance Tables, Special Torques, Machine Dimensions and Weights |
| Engine | 49-66 | Engine Removal |
| Clutch | 67-88 | Clutch Adjustment, Clutch Repair |
| Power Take-Off | 89-140 | Main Driveshaft Chain Replacement, Main Driven Sprocket Replacement, Flywheel Replacement or Repair, Gearbox Repair |
| Hydraulic Systems | 141-212 | Hydraulic Valves, Bale Density Valve Repair, Oiler System General |
| Frames | 213-218 | Hitch Adjustment, Jack Repair, Transport Latch, Tongue Pivot Repair |
| Axles and Wheels | 219-224 | Wheel Bearing Replacement, Tire Removal, Wheel Removal, Wheel Hub, Axle Removal, Axle Installation |
| Electrical | 225-374 | Engine Starting System Components, Charging System Troubleshooting, Driving Lights Circuit Components, Work Lights Switch Circuit Components, Engine Warning Circuit Components |
| Product Feeding | 375-508 | Pickup Removal, Pickup Slip Clutch Repair, Pickup Driveshaft Bearing Replacement, Pickup Auger Replacement, Feeder Operation, Feeder Floor Removal |
| Pressing | 509-556 | Plunger Connector Rod Repair, Plunger Bearings and Rails Replacement |
| Tying | 557-766 | Knotter Trip System Operation, Knotter Drive Chain Replacement, Knotter Jackshaft Drive Chain Replacement, Knotter Jackshaft Right Bearing Replacement |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine oil (with filter) capacity | 12 L (12.7 qt) | p. 45 |
| Plunger bearing adjustments | 1.5 mm (0.060") side to side, 0.8 mm (0.030") up and down | p. 35 |
| Gearbox oil capacity | 2.3 L (2.4 qt) | p. 45 |
| Hydraulic system reservoir capacity | 14.4 L (3.8 gal) | p. 45 |
| Flywheel center bolt torque | 240 N·m (177 ft.-lb.) | p. 113 |
| Engine mounting bolt torque | 113 N·m (83 ft.-lbs.) | p. 113 |
| Flywheel bushing bore diameter | 57.173 to 57.335 mm (2.251 to 2.257 in.) | p. 112 |
| Press capacity for gearbox assembly | 30 tons | p. 124 |
| Hydraulic fluid reservoir fill capacity | 15 liters (4 gal) | p. 152 |
| Small vertical bearing locknut torque | 156 to 170 N·m (115 to 125 ft.-lbs.) | p. 549 |
| Engine Maximum Power | 46 kW (62 hp) | p. 39 |
| Engine Rated Speed | 2280 RPM | p. 39 |
New Holland BB900 Common Problems This Manual Covers
Knotter mistying or dropping knots
Loose or broken bales in the windrow usually trace back to knotter timing, worn drive chains, or jackshaft bearings. The Tying section walks through knotter trip system operation, drive chain replacement, and jackshaft bearing replacement so you can diagnose it instead of guessing.
Manual Section: Tying p. 557Plunger knock and bearing wear
A rhythmic knock from the bale chamber means plunger bearings or rails are past their limits. The Pressing section gives the factory movement limits, 1.5 mm side to side and 0.8 mm up and down, plus connector rod repair and bearing and rail replacement procedures.
Manual Section: Pressing p. 509Pickup slip clutch slipping or jamming
Heavy windrows and the odd fence post will find the pickup slip clutch and driveshaft bearings. The Product Feeding section covers pickup removal, slip clutch repair, driveshaft bearing replacement, and auger replacement.
Manual Section: Product Feeding p. 375Inconsistent bale density
Soft or uneven bales point to the bale density valve or elsewhere in the hydraulic circuit. The Hydraulic Systems section covers hydraulic valve service and bale density valve repair, along with the oiler system.
Manual Section: Hydraulic Systems p. 141Charging and starting system faults
A Deutz that cranks slow or a battery that will not hold charge through a long day is an electrical diagnosis job. The Electrical section covers engine starting system components, charging system troubleshooting, and the warning and lighting circuits.
Manual Section: Electrical p. 225Main driveline chain and flywheel damage
A plugged chamber can shock the driveline hard enough to damage the flywheel or stretch the main driveshaft chain. The Power Take-Off section covers main driveshaft chain replacement, driven sprocket replacement, flywheel repair, and gearbox repair.
Manual Section: Power Take-Off p. 89Wheel bearing failure on the road
A hot hub after transport between fields means wheel bearings are on their way out. The Axles and Wheels section covers wheel bearing replacement, hub service, and axle removal and installation.
Manual Section: Axles and Wheels p. 219Frequently Asked Questions
Which machine and engine does this manual cover?
It covers the New Holland BB900 self-powered big square baler with the Deutz F4L912 engine, under New Holland publication number 86614937. All 766 pages are in English. p. 15
Does it cover knotter repair and adjustment?
Yes. The Tying section is the largest in the book and covers knotter trip system operation, knotter drive chain replacement, and jackshaft drive chain and bearing replacement. p. 557
Are torque specs and clearances included?
Yes. The General Information section's torque tables carry values such as wheel lug bolts at 204 N.m (150 ft-lbs) and the pickup slip clutch at 750 to 790 N.m (550 to 580 ft-lbs), and each system section adds its own values. p. 34
How do I get the manual after paying?
It is a direct download available immediately after checkout. The file is about 60 MB, works on any device with a PDF reader, and includes 43 bookmarks for jumping straight to a system.
Do I get instant access to this New Holland BB900 Repair Manual?
This is a 766-page searchable PDF ready for immediate download. Works on any device, so pull it up on your phone while you're under the hood. No shipping, no waiting.
Is this New Holland BB900 Repair Manual printable?
Zero restrictions. The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
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