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 |
New Holland Roll-Belt 450 Utility Common Problems This Manual Covers
New Holland Roll-Belt 450 belts constantly rubbing on the side sheet, bearings overheating and smoking p. 494
Check belt tracking; the roll-belt should run centered within its 178 mm (7.0 in) width without touching the side sheet. Remove the bearing housing and measure starter roll end play, replacing it if beyond the 3.5 mm (0.138 in) limit on page 494. Torque the M12 x 30 flange bolts to 70 N·m (52 lb ft).
Manual Section: Pressing - Bale FormationBearing failures and belt misalignment appearing after roughly 200 bales of use p. 508
Pull the outer bearing flangette and inspect for wear; the flange bolts on these units are M12 x 30 as noted on page 508. Reinstall with new bearings and torque the flange bolts to 40 N·m (30 lb ft) per page 532. Recheck belt tension and tracking after the first 50 bales to confirm the misalignment doesn't return.
Manual Section: Pressing - Bale FormationControl computer and wrap sensors failing repeatedly, needing replacement every couple hundred bales
Pull the diagnostic connector X-014 and measure CAN circuit resistance between pin H and pin J with a multimeter; it should read 55-65 Ω per the troubleshooting procedures. Also check the terminator resistance at X-026 pin A to pin B, which should measure 115-125 Ω. A loose connector or bad terminator usually causes repeated failures.
Manual Section: Controller Area Network (CAN) data bus - Problem solvingTwine breaking repeatedly during wrapping cycles, or net wrap failing to engage consistently on bales p. 644
Adjust the twine tension at the clamp so the spring length measures 24 mm (15/16 in), producing 3.6-5.4 kgf (7.9-11.9 lbf) of pull per page 644. Check the twine arm position potentiometer voltage while cycling the arm; it should read above 8.0 V at full extension per page 341. Replace the potentiometer if the voltage doesn't respond correctly.
Manual Section: Twine wrapper - Tension adjustBales coming out with rough or uneven edges after several hundred bales made
Inspect the bale forming belts for lacing damage or uneven wear along the edges; repair or replace using the procedure. When reinstalling belt guides or tensioners, torque the M12 x 35 hex bolts with flat washers to 92-98 N·m (68-72 lb ft) per page 451. Rotate the rollers by hand to confirm they spin freely without drag.
Manual Section: Bale forming belts - RepairFrequently Asked Questions
How to reset error codes on New Holland Roll-Belt 450 Utility?
To reset error codes on the New Holland Roll-Belt 450 Utility, open the fault history screen on the display monitor. After reviewing the recent faults, press the CANCEL / RESET key to return to the previous menu.
What are the torque specifications for the gearbox mount on New Holland Roll-Belt 450?
The gearbox mounts to the frame with four M16 x 35 bolts, flat washers, and lock washers. While the manual instructs to install and tighten these bolts by hand and then with a wrench, it refers to standard torque values. According to the 'METRIC NON-FLANGED HARDWARE' table, an M16 Class 8.8 unplated bolt should be torqued to 158 N·m (116 lb ft), and a plated bolt to 210 N·m (155 lb ft).
How to stop belt tracking issues on New Holland Roll-Belt 450 Utility?
If the belts consistently shift toward one side or rub against the belt guides and sledge frame, loosen the M12 x 50 hex head bolt (1) holding the tailgate roller. Raise or lower the roll slightly to shift the tracking, and then tighten the bolt to 92 - 98 N·m (68 - 72 lb ft).
How to fix net tail wrap issues on New Holland Roll-Belt 450?
If the net tail is lost during net insertion and the net does not start to wrap, add more tension at the center bolts (2) of the duckbill baffle. Conversely, if net spreading is a problem, loosen the outermost bolts (4) at one flat interval until proper spreading is achieved.
How will I receive this New Holland Roll-Belt™ 450 Utility Service Manual?
You get a 662-page searchable PDF that downloads instantly after checkout. Open it on your laptop, tablet, or phone, and bring it right to the shop floor.
Are there any print restrictions on this New Holland Roll-Belt™ 450 Utility?
Yes, print as many copies as you want, and there are no restrictions. Many mechanics print the section they need and bring it to the shop floor.
Does this New Holland Roll-Belt™ 450 Utility manual include hydraulic?
Yes. The manual includes hydraulic circuit diagrams, system schematics, and component specifications with pressure ratings.
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