Part of the Case IH Repair Manuals.
When the net wrapper quits mid windrow, the 662 pages of this Case IH RB455A service manual PDF (OEM ID 47546430) are what stand between your round baler and a field of downed hay. Factory wiring diagrams, harness routings, and connector pinouts fill the electrical section, which takes up better than a third of the book, backed by fault code tables for the bale formation controls. Repair procedures walk the bale density, tailgate, and pickup lift circuits, then work through every roll in the pressing chamber: starter, stationary, stripper, floor, and sledge. Set belt tensioning pressure between 899 and 2000 psi, and know the main gearbox shearbolt is built to let go at 1350 N·m (996 lb ft). A pressure figure pulled from memory ruins belts. This bookmarked, keyword searchable PDF also carries exploded views, so you order the right part the first time and lose one trip to the dealer, not the whole cutting.
What's Inside This Case IH RB455A Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 5-36 | 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 | 37-80 | Power Take-Off Shaft, Main Gearbox |
| Rear Axle System | 81-94 | Non-Powered Rear Axle |
| Hydraulic Systems | 95-142 | Bale Density Circuit, Tailgate Circuit, Pickup Lift Circuit |
| Wheels | 143-152 | Rear Wheels |
| Electrical Systems | 153-376 | Harnesses and Connectors, Pressing/Bale Formation Electrical Control, Electronic Modules, Fault Codes |
| Product Feeding | 377-430 | Pickup |
| Pressing - Bale Formation | 431-560 | Bale Formation, Starter Roll, Stationary Roll, Stripper Roll, Floor Roll, Sledge |
| Tying/Wrapping/Twisting | 561-648 | Net Wrapper, Twine Wrapper |
| Ejection | 649-662 | Bale Ejector Components |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Main gearbox protection shearbolt shear force | 1350 N·m (996 lb ft) | p. 28 |
| Bale forming belts tension system pressure | 6.2 - 13.79 MPa (899 - 2000 psi) | p. 436 |
| PTO maximum speed | 540 RPM | p. 28 |
| PTO maximum working length | 1880 mm (74.0 in) | p. 41 |
| CAN bus termination resistance | 60 ohms | p. 304 |
| CAN bus termination resistor | 120 ohm | p. 304 |
| Tine spacing | 67 mm (2.6 in) | p. 382 |
| 5/16 inch locknut torque | 17 - 23 N·m (150 - 204 lb in) | p. 396 |
| Roll-Belt Width | 178 mm (7.0 in) | p. 436 |
| Tension System Pressure | 6.2 - 13.79 MPa (899 - 2000 psi) | p. 436 |
| M12 bolt torque | 92 - 98 N·m (68 - 72 lb ft) | p. 458 |
| Bale forming chain spring length | 285 - 295 mm (11 - 12 in) | p. 460 |
Case IH RB455A Common Problems This Manual Covers
Case IH RB455A bale forming belts fraying at splices, belts jump off rollers and mistrack
Inspect each belt splice and lacing cable for broken hooks before blaming tracking. Verify the tension system holds between 6.2 and 13.79 MPa (899 to 2000 psi), listed on page 436. Replace any belt stretched past the stock 8712 mm (343.0 in) length, then adjust tracking and run the chamber empty until the belts center.
Manual Section: Pressing - Bale Formation p. 436Pickup teeth snapping off in heavy windrows, pickup leaves strips of hay standing
Replace broken tines and verify the 67 mm (2.6 in) tine spacing shown on page 382 before tightening anything. Torque the 3/8 inch flange nuts to 41 N·m (30 lb ft), then set pickup flotation so the teeth clear the ground by 32 mm (1-1/4 in) in normal field conditions.
Manual Section: Product Feeding p. 382Bales coming out soft and misshapen, density circuit won't hold pressure during baling
Charge the bale density circuit and watch the gauge; it must build to the 13790 kPa maximum listed on page 105. If pressure bleeds off, pull the density cylinders and inspect the seals; bore is 50.8 mm. Set the bale tension spring adjustment length to 81.0 to 89.0 mm (3.2 to 3.5 in) per page 459.
Manual Section: Bale density circuit troubleshooting p. 105PTO shaft stops turning under load, shear bolt breaks repeatedly in heavy slugs
Remove the slug from the pickup before replacing hardware. Install only the correct shear bolt rated at 1400 N·m, the spec on page 41; a harder bolt just moves the break into the gearbox. Verify PTO working length does not exceed 1880 mm (74.0 in) and run the tractor at 540 RPM, no higher.
Manual Section: Main Gearbox and Drive p. 41Twine and net actuators dead or erratic, monitor shows intermittent faults in the cab
Test the actuator directly with 12 V using the procedure on page 306; the ram should extend its full 101 mm (4 in) stroke. Measure harness resistance next: a good circuit reads less than 1.0 ohm and an open reads over 20,000 ohms, values on page 310. Check that CAN bus termination reads 60 ohms before condemning a module.
Manual Section: Electronic modules troubleshooting p. 306Net wrap tears at the duckbill or bunches to one side of the bale
Check net brake tension with a spring scale; pull force should read 39 to 43 kgf (85 to 95 lbf) per page 606. Set the distance from the net brake bracket to the net knife eye bolt center at 67 to 73 mm (2.6 to 2.9 in). Clean chaff from the duckbill and inspect the blade for nicks.
Manual Section: Net wrapper troubleshooting p. 606Frequently Asked Questions
What are the torque specs for the M16 locknut on the Case IH RB455A round baler's non-powered rear axle?
The M16 locknut on the non-powered rear axle must be torqued to 164 - 194 N·m (121 - 143 lb ft). p. 85
What is the recommended oil capacity and type for the main gearbox on a Case IH RB455A round baler?
The main gearbox requires 900 ml (30.4 US fl oz) of CASE IH AKCELA GEAR 135 H EP 80W-90 gear oil. p. 42
What is the procedure for adjusting the bale forming chain tension?
To adjust the bale forming chain, loosen the upper locknut and adjust the jam nut at (1) until the spring length measures 285 - 295 mm (11 - 12 in) between the inside of the hooks. Tighten the upper locknut against the jam nut to secure. p. 460
What is the maximum density bale pressure for the Case IH RB455A hydraulic system?
The maximum density bale pressure is 13790 kPa (2000 psi) or 138 bar. p. 105
How do I check the gear backlash in the main gearbox?
The gear backlash in the main gearbox should be between 0.17 - 0.45 mm (0.01 - 0.02 in). p. 42
How is this Case IH RB455A Service Manual delivered?
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.
Can I print specific sections of this Case IH RB455A Service Manual?
You can. The PDF is unlocked and carries no copy protection, so print the sections you want and keep the file as your backup.
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