Part of the Case IH Repair Manuals.
Got a Case IH LB Square Baler down? This 821-page service manual (OEM #47510985) covers the LB324, 334, 424, and 434, from PTO flywheel and gearbox through pneumatic brakes, hydraulic bale density circuit, and all the way to knotter frame, needles, and grease lubrication. You get full hydraulic schematics for the bale density circuit, complete wiring diagrams with harness routing and connector pinouts for every module, and a fault codes section covering every warning indicator and alarm. Step-by-step procedures run through pickup, rotor, precompression, stuffer, and plunger connecting rod service. Set needle-to-plunger timing clearance to 0-40 mm, then bring knotter gearbox bearing preload to 0.4-0.8 N·m. Factory numbers, not forum guesses. One bad knotter setting buries your whole field run. Bookmarked by system and keyword-searchable; pull it up on your device and get the right spec before you touch the needles.
What's Inside This Case IH LB324–LB434 Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 6-31 | Advice, Foreword, Note to the Owner, Safety Rules, Basic Instructions, Torque, Basic Instructions - Chain Wear Tables - Roller Chains |
| Power Take-Off (PTO) | 32-119 | Flywheel, Gearbox |
| Brakes and Controls | 120-149 | Pneumatic Service Brakes |
| Hydraulic Systems | 150-177 | Bale Density Circuit |
| Electrical Systems | 178-569 | Electrical System, Harnesses and Connectors, Electronic Modules, Pressing/Bale Formation Electrical Control, Warning Indicators, Alarms, And Instruments, Fault Codes |
| Product Feeding | 570-681 | Pickup, Rotor, Precompression, Stuffer |
| Pressing - Bale Formation | 682-695 | Plunger and Connecting Rod |
| Tying/Wrapping/Twisting | 696-751 | Knotter Frame, Knotter Drive System, Knotter Clutch and Brake, Needles |
| Lubrication System | 752-803 | Grease Lubrication System |
| Platform, Cab, Bodywork, and Decals | 804-821 | Machine Shields and Guards |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Bale length adjustment preload voltage | 5.21 - 5.24 V | p. 539 |
| Needles to plunger timing clearance (distance X between middle of needle top roller and plunger knives) | 0 - 40 mm (0 - 1.6 in) | p. 645 |
| Knotter gearbox bearing preload | 0.4 - 0.8 N·m (0.295 - 0.590 lb ft) | p. 726 |
| Hardware tightening torque (M6, Class 8.8, Plated nut) | 10.1 N·m | p. 18 |
| Hardware tightening torque (M10, Class 10.9, Hardened nut) | 62.5 N·m | p. 18 |
| Flywheel bolt (10) torque | 120 N·m | p. 43 |
| Flywheel preload bolts (S) torque | 97 N·m | p. 44 |
| Gearbox input shaft bearing friction torque | 1.4 - 2.5 N·m | p. 95 |
| Feeder/pickup drive shaft backlash | 0.05 - 0.15 mm | p. 97 |
| Plunger crank drive shaft bearing inner race installation temperature | 80 °C | p. 104 |
| 4-knotter machines | ||
| Gearbox input shaft cover bolts torque, 4-knotter machines | 110 N·m | p. 103 |
| 6-knotter machines | ||
| Gearbox input shaft cover bolts torque, 6-knotter machines | 120 N·m | p. 103 |
