All 208 pages of this Case IH RD162, RD182 Service Manual zero in on one job: getting your Disc Auger Headers back to factory spec. Inside: the complete hydraulic motor teardown sequence, fixed displacement motors, motor coupling housings, and main shaft service for both left and right sides. The headers chapter goes further, walking through bevel gearbox drive, cutter bar and drive shaft procedures, auger assembly, conditioner drive gearbox, conditioner rolls, and a full optional equipment section covering high stubble kits, gauge wheel kits, and rolling crop dividers. Torque your disc retaining bolts to 204 N·m (150 lb ft); set conditioner drive gearbox shaft rolling torque between 560 and 1120 N·mm. Header down, season running. Get the factory number on the first try. Bookmarked by section, searchable by keyword; open it on your phone and start wrenching.
What's Inside This Case IH RD162, RD182 Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 3-48 | Forward, Precautionary Statements, Personal Safety, Machine Safety, Information, Safety |
| Hydraulics | 49-84 | Hydraulic Motors, Left Side Motor Coupling Housing, Right Side Motor, Fixed Displacement Motors, Back Plate, Main Shaft |
| Header Drive & Cutter Bar Assembly | 85-138 | Bevel Gearbox Header Drive, Cutter Bar, Cutter Bar Drive Shaft, Auger and Auger Drive |
| Conditioning System | 139-186 | Conditioner Drive Gearbox, Conditioner Roll Drive, Conditioner Rolls, Conditioner Roll Tension System |
| Optional Equipment | 187-192 | High Stubble Kit, Header Closure Kit, Steel Slatted Conditioning Rolls, Gauge Wheel Kit, Rolling Crop Dividers, Replacement Disc Knives |
| Decals | 193-208 | - |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| RD182 | ||
| Hydraulic system flush procedure | Clean and inspect all parts. Replace all worn parts and flush hydraulic system. | p. 83 |
| RD182 Overall Width | 5542 mm (18 ft 2in) | p. 17 |
| RD182 No. of discs | 14 | p. 17 |
| All Models | ||
| Disc retaining bolt torque | 204 N⋅m (150 lb ft) | p. 109 |
| Skid shoe to rock guard mounting bolts torque | 113 N⋅m (83 lb ft) | p. 189 |
| Knives retaining bolts torque (1/2 inch, SAE Grade 8) | 113 N⋅m (83 lb ft) | p. 20 |
| Conditioner drive gearbox shaft rolling torque | 560 - 1120 N⋅mm (5 - 10 lb in) | p. 143 |
| Skid shoe thickness | 1/4 inch | p. 104 |
| Skid shoe width | 8 inch | p. 104 |
| RD162 | ||
| RD162 Overall Width | 4836 mm (15 ft 9-1/4 in) | p. 16 |
| RD162 No. of discs | 12 counter-rotating | p. 16 |
| Hydraulic Motor Max Displacement | 44 cm3/r (2.65 in3/r) | p. 56 |
Case IH RD162, RD182 Common Problems This Manual Covers
Case IH RD162 hydraulic motor running rough or losing pressure, discs slowing under load p. 56
Check system pressure at the motor port — continuous rated pressure must hold at 210 bar (3000 psi) under load. If pressure drops, remove the motor and inspect seals, shaft, and displacement components per the overhaul procedure on pages 58-63. Replace all worn seals and bushings before reinstalling. Do not return to service until pressure holds steady through a full cutting pass.
Manual Section: Hydraulic Motor Overhaul (RD162)Disc knives breaking frequently or leaving ragged stubble across the cut width
Inspect each knife mounting bolt and torque to 108 N⋅m (80 lb ft) on page 20. Check knife angle — 7-degree knives suit most conditions; switch to 14-degree in heavy, stemmy crops. Examine lifters and discs for impact damage or misalignment at . Replace any disc showing cracks or wobble over 2 mm at the outer edge before the next field entry.
Manual Section: Cutter Bar Analysis (Inspection/Failure)Header drive gearbox overheating or leaking oil after seasonal use
Drain and refill the header drive gearbox to exactly 2500 ml (85 oz) on page 41 — overfilling pressurizes seals and causes leaks, underfilling burns bearings. Inspect the bevel gearbox input and output shafts for seal wear during the next planned downtime, following the overhaul sequence on . Replace tapered roller bearings if end-play exceeds manufacturer tolerance.
Manual Section: Bevel Gearbox Header Drive OverhaulConditioner belt slipping or squealing, rolls not matching disc output speed p. 143
Measure conditioner belt tension spring length and adjust to 220 mm (8-3/4 in) per page 33. Check the conditioner drive gearbox oil level and top up to 590 ml (0.63 qts) per page 43. If tension is correct but belt still slips, pull the gearbox and verify shaft rolling torque falls between 560 and 1120 N⋅mm (5-10 lb in) per page 143 — outside that range means bearing preload is wrong.
Manual Section: Conditioner Drive Gearbox OverhaulSkid shoes wearing through quickly on abrasive ground, disc height inconsistent p. 104
Inspect skid shoe thickness — replace any shoe worn below 1/4 inch per page 104. Torque all skid shoe to rock guard mounting bolts to 113 N⋅m (83 lb ft) on page 189. On sandy or gravelly fields, switch to high skid shoes (K87622885) to add ground clearance and extend service intervals. Check stone guards at the same time for bending or cracking.
Manual Section: Attachments/HeadersDisc retaining bolts backing out mid-season, disc wobble increasing p. 109
Remove each disc, clean the mating surfaces, and apply thread locker to the retaining bolts. Torque to 204 N⋅m (150 lb ft) per page 109 in a cross pattern. Inspect the disc hub splines for fretting wear — any visible rounding means the hub needs replacement before the disc will seat properly. Re-check torque after the first four operating hours following any disc replacement.
Manual Section: Cutter Bar Analysis (Inspection/Failure)Frequently Asked Questions
How do you fix case IH RD162 hydraulic motor running rough or losing pressure, discs slowing under load?
Check system pressure at the motor port — continuous rated pressure must hold at 210 bar (3000 psi) under load. If pressure drops, remove the motor and inspect seals, shaft, and displacement components per the overhaul procedure on pages 58-63. Replace all worn seals and bushings before reinstalling. Do not return to service until pressure holds steady through a full cutting pass.
How do you fix disc knives breaking frequently or leaving ragged stubble across the cut width?
Inspect each knife mounting bolt and torque to 108 N⋅m (80 lb ft) on page 20. Check knife angle — 7-degree knives suit most conditions; switch to 14-degree in heavy, stemmy crops. Examine lifters and discs for impact damage or misalignment at . Replace any disc showing cracks or wobble over 2 mm at the outer edge before the next field entry.
How do you fix header drive gearbox overheating or leaking oil after seasonal use?
Drain and refill the header drive gearbox to exactly 2500 ml (85 oz) on page 41 — overfilling pressurizes seals and causes leaks, underfilling burns bearings. Inspect the bevel gearbox input and output shafts for seal wear during the next planned downtime, following the overhaul sequence on . Replace tapered roller bearings if end-play exceeds manufacturer tolerance.
How do you fix conditioner belt slipping or squealing, rolls not matching disc output speed?
Measure conditioner belt tension spring length and adjust to 220 mm (8-3/4 in) per page 33. Check the conditioner drive gearbox oil level and top up to 590 ml (0.63 qts) per page 43. If tension is correct but belt still slips, pull the gearbox and verify shaft rolling torque falls between 560 and 1120 N⋅mm (5-10 lb in) per page 143 — outside that range means bearing preload is wrong.
What do I get after purchasing this Case IH RD162, RD182 manual?
Instant PDF download. You get the full 208-page searchable Service Manual immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
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Yes. The PDF has no DRM restrictions, so print any page or section you need for your shop. Works with any standard printer.
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