Part of the Case IH Repair Manuals.
This 156-page Case IH SMX91 Repair Manual (OEM #86630606) goes system by system through the SMX91 Mower-Conditioner, from PTO assembly and slip clutch through cutter bar, wobble drive gearbox, conditioner rolls, and the full reel system. Inside you get page after page of exploded-view diagrams paired with step-by-step rebuild procedures for every major assembly. Open to the Attachments/Headers section and you'll find knife assembly and replacement, wobble drive teardown, main gearbox overhaul, conditioner roll R&R, and complete reel service, including tine bar clearance, shaft end play, and cam track procedures. Check the slip clutch torque at 445 - 460 N·m (325 - 342 ft. lbs.) and confirm the lubrication points before you re-engage the PTO. Every hour your mower sits is money. Search by keyword or jump to any section with built-in bookmarks and get back to cutting.
What's Inside This Case IH SMX91, SMX91 Mower-Conditioner Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 9-22 | Foreword, Precautionary Statements, Safety, Ecology and the Environment, International Symbols, Identification Number, How the Mower-Conditioner Functions, Power Distribution |
| Implement Power Take-Off (PTO) | 23-38 | PTO (Assembly, Telescoping Shaft and Tube, Front Primary PTO Assembly, Shaft Shields, Joint Replacement, Quick-Detachable Yoke, Secondary PTO Drive Shaft), Slip Clutch |
| Hydraulic Systems | 39-44 | Hydraulic Cylinders (Hydraulic Cylinders, Optional) |
| Frames | 45-68 | Tongue and Jack, Windrow Shields (Fluffing Baffle, Swathgate), Lift Frame / Roll Frame / Header Frame |
| Electrical System | 69-74 | Implement Lights (Trailing Lights Wire Harness, Installing the Socket) |
| Cutter Bar | 75-88 | Knife Assembly, Knife Sections, Knife Guards, Knife Replacement, Sickle Drive |
| Wobble Drive Gearbox | 89-98 | Knife Arm, Eccentric Bearing, Removal and Installation |
| Header Drive | 99-116 | Drive Chains, Sprockets, Main Gearbox |
| Conditioner Rolls and Drive System | 117-132 | Conditioner Rolls, Roll Gap Adjustment, Drive Chain, Roll Replacement |
| Reel | 133-146 | Tine Bars, Shaft Bearings, Belt Tension, Cam Track, Reel Drive |
| Safety Decals | 147-156 |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Slip Clutch Torque | 445 - 460 N·m (325 - 342 ft. lbs.) | p. 38 |
| Reel Drive Belt Tension Force | 778 - 890 N·m (175 - 200 ft. lbs.) | p. 135 |














