Part of the New Holland Repair Manuals.
What's inside: the full factory service manual for the New Holland B90B, B90BLR, B100B, B100BLR, B110B and B115B loader backhoes, the CNH era B series with 97 HP (72 kW) engines on the B90B and B100B and 110 HP (82 kW) on the B110B and B115B. Every system is here: Turner COM-T4-2025 powershuttle and Dana T16000 powershift transmissions, torque converters, front and rear axles, brakes, the load sensing hydraulic system with Rexroth control valves, 2WS and 4WS steering, cab heating and air conditioning, and the electrical system with diagnostic display codes. Loader and backhoe attachments get their own chapters, down to bucket teeth replacement and telescopic dipper revision. Written for the tech who fixes instead of guessing.
What's Inside This New Holland B90B–B115B Series Manual
| System | Pages | Key Topics |
|---|---|---|
| Contents and Model Identification | 7-15 | Section Contents, Model Coverage B90B to B115B |
| Safety Precautions | 16-21 | Warning Symbols, Ecological Considerations |
| Maintenance | 22-25 | General Maintenance Practices, Repair Procedures, Seal Installation |
| Technical Specifications | 26-83 | Identification of Main Components, Diesel Engine, Transmission, Steering, Noise and Vibration Levels, Dimensions and Performance |
| Torque Converters | 84-97 | Powershuttle Torque Converter, Powershift Torque Converter, Description and Operation, Disassembly and Assembly, Stall Test |
| Transmission | 98-387 | Powershuttle Transmission (Turner Com-T4-2025), Powershift Transmission (Dana T16000), Transmission Controls and Lubrication, Fault Finding and Special Tools |
| Front Axles | 388-527 | Specifications, Disassembly and Assembly, Fault Finding, Special Tools |
| Rear Axle | 528-611 | Rear Axle 2WS, Description and Operation, Specifications, Disassembly and Assembly, Fault Finding |
| Brakes System | 612-625 | Service Brake Specifications, Parking Brake Adjustment, Brake Cylinders, Bleeding Procedure |
| Hydraulic System | 626-753 | Hydraulic Diagrams, Hydraulic Pump and Load Sensing Valve, Control Valves (Rexroth), Hydraulic Cylinders and Control Levers |
| Chassis | 754-767 | Description and Operation, Removal and Installation of Components, Mounting Screw Torque |
| Steering System | 768-801 | 2WS and 4WS Systems, Power Steering Components, Disassembly and Assembly, Fault Finding |
| Cab Heating and Air Conditioning | 802-869 | Cab Heating, Air Conditioning Principles, Fault Finding and Testing, System Evacuation and Charging |
| Electrical System | 870-1059 | Electrical Diagrams, Controls and Instruments, Diagnostic Display, Starting System and Alternator |
| Loader | 1060-1081 | Loader Attachment Controls, Bucket Self-Leveling, Safety Strut, Bucket Removal and Replacement |
| Backhoe | 1082-1110 | Mechanical and Hydraulic Controls, Removal and Installation, Bucket Removal and Teeth Replacement, Telescopic Dipper Revision |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine B90B Max Torque | 400 Nm @ 1400 rpm | p. 30 |
| Engine B100B Max Torque | 453 Nm @ 1400 rpm | p. 30 |
| Engine B110B/B115B Max Torque | 516 Nm @ 1400 rpm | p. 31 |
| Steering System Pressure | 177 ± 3 bar | p. 34 |
| Internal Noise Level | 77 db | p. 35 |
| Front Nuts Torque (2WS) | 330 Nm | p. 36 |
| Rear Nuts Torque (2WS) | 540 Nm | p. 36 |
| Front and Rear Nuts Torque (4WS) | 700 Nm | p. 36 |
| Bucket relief valve (rod end) | 240 bar (3481 psi) | p. 658 |
New Holland B90B–B115B Series Common Problems This Manual Covers
Machine loses drive or the shuttle slips when hot
The Transmission chapter splits fault finding by unit: the Turner COM-T4-2025 powershuttle and Dana T16000 powershift each get pressure test points, clutch checks and special tool listings, so you can test the box before you commit to splitting the machine.
Manual Section: Transmission p. 98Loader and backhoe hydraulics are slow or weak under load
Start with the hydraulic schematic on page 631 in the Hydraulic System chapter, then test the pump and load sensing valve. The bucket relief valve setting is 240 bar (3481 psi) on page 658, and a tired relief valve mimics a tired pump.
Manual Section: Hydraulic System p. 658Engine cranks slowly or the starter does nothing with the key on
The Electrical System chapter has starting system fault finding on page 995 plus the engine line wiring diagram on page 878, so you can chase voltage drop through the key switch, relay and solenoid instead of throwing a new starter at an old wiring problem.
Manual Section: Electrical System p. 995Steering is heavy, jerky or wanders on 2WS and 4WS machines
The Steering System chapter covers 2WS and 4WS separately with fault finding tables. Check system pressure first against the 177 ± 3 bar spec, with the relief valve at 170 bar and shock valves at 225 bar, then move to disassembly and assembly if a component is bypassing internally.
Manual Section: Steering System p. 768Frequently Asked Questions
My machine has the powershift, not the powershuttle. Does this manual cover both transmissions?
Yes, both are in here as separate units: the Turner COM-T4-2025 powershuttle and the Dana T16000 powershift. Each gets its own controls, lubrication, fault finding and special tools coverage, so you follow the procedure for the box actually bolted into your machine, not a generic writeup. p. 98
Can I pull error codes from the dash without a dealer laptop?
On the B100B, B110B and B115B, yes. The on-board error code retrieval procedure through the diagnostic display is printed on page 978, and the Electrical System chapter walks you from code to circuit. No dealer tool needed to know why the machine is complaining. p. 978
Are the actual wiring and hydraulic diagrams included, or just parts pictures?
The real diagrams are here. The engine line wiring diagram is on page 878, the hydraulic schematic on page 631, and the Rexroth control valves are broken down in the Hydraulic System chapter. Enough to trace a circuit wire by wire or a hydraulic fault line by line. p. 878
I have a 4WS crab steer model. Is it covered or only the standard 2WS?
Both steering layouts are covered side by side. The Steering System chapter gives 2WS and 4WS their own power steering component breakdowns, disassembly and assembly steps and fault finding, and the axle chapters split the same way, so 4WS owners are not left translating 2WS procedures. p. 768
Does it cover recharging the cab air conditioning?
Yes. The Cab Heating and Air Conditioning chapter covers system principles, fault finding and testing, then the full evacuation and charging procedure. If you have gauges and a vacuum pump, you can diagnose a warm cab and recharge the system without a trip to the AC shop. p. 802
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