Part of the New Holland Repair Manuals.
This 662-page New Holland Roll-Belt™ 450 Utility Service Manual (OEM #47546428) puts the complete round baler behind your login: main gearbox, hydraulic circuits, and the CAN bus electrical system that runs the whole machine. Open it and you get full wiring diagrams and hydraulic schematics covering every harness, connector, and valve circuit, plus a dedicated fault code section for chasing electrical gremlins instead of guessing at them. You also get step-by-step procedures for pickup, bale formation, tying/wrapping, and ejection, the systems that actually make or break a baler in the field. Set CAN HI to CAN LO resistance at 60 ohms, and torque hydraulic fittings to the specified values in the 'Torque - Standard torque data for hydraulics' section on page 25 and 'PIPE THREAD FITTING TORQUE' on page 26, not whatever your last shop manual said. No more chasing a CAN fault with a multimeter and a hunch. Fully bookmarked for fast jumps between sections; download it, load it on your tablet, and take it straight to the baler.
What's Inside This New Holland Roll-Belt 450 Utility Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 6-37 | Basic Instructions - Important Notice Regarding Equipment Servicing, Personal Safety, Safety Rules Ecology and the Environment, Safety Rules - Personal Safety, Safety Rules |
| Main Gearbox and Drive - 14 | 38-81 | Power Take-Off (PTO) Shaft, Main Gearbox, Gear Backlash, Bearing Preload, Gear Tooth Contact |
| Rear Axle System - 27 | 82-95 | Wheel Hub, Torque, Disassemble, Assemble, Install |
| Hydraulic Systems - 35 | 96-143 | Hydraulic Cylinders, Main Hydraulic Valve, Lockout Valve, Bale Density Circuit, Tailgate Circuit, Pickup Lift Circuit |
| Wheels - 44 | 144-153 | Rear Wheels, Tire Pressure, Wheel Lugs, Wheel Spindle |
| Electrical Systems - 55 | 154-377 | Wiring Harnesses, Wire Connectors, Electronic Modules, Controller Area Network (CAN) Data Bus, Electrical Test, Fault Codes |
| Product Feeding - 60 | 378-431 | |
| Pressing - Bale Formation - 62 | 432-561 | |
| Tying/Wrapping/Twisting - 68 | 562-649 | |
| Ejection - 70 | 650-662 | Bale Ejection, Bale Kicker, Bale Ejector, Bale Ejector Spring Linkage, Pipe Clamp |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Torque - Minimum tightening torques for normal assembly | 16 | p. 6 |
| Torque - Standard torque data for hydraulics | 21 | p. 6 |
| actuator extension ram full stroke | 101 mm (4 in) | p. 306 |
| CAN HI and CAN LO wires resistance | 60 ohms | p. 304 |
| CAN circuit resistance at diagnostic connector X-014 (pin H to pin J) | 55 - 65 Ω | p. 325 |
| Terminator's resistance between X-018 pin A to pin B | 115 - 125 Ω | p. 325 |
| Twine arm position potentiometer sensed voltage (shorted to Supply) | greater than 8.0 V | p. 341 |
| Roll-Belt Width | 178 mm (7.0 in) | p. 436 |
| Roll-Belt Length | 8712 mm (343.0 in) | p. 436 |
| Twine tension adjustment | 3.6 - 5.4 kgf (7.9 - 11.9 lbf) | p. 644 |
| Adjusted spring length (A) | 24 mm (15/16 in) | p. 644 |
| Baler Length (hitch to closed tailgate) | 4134 mm | p. 27 |




















