Part of the John Deere Repair Manuals.
A knife drive case that starts hammering mid-season leaves you standing over a torn-down platform with nothing to measure against. TM1526 is the 236-page John Deere Technical Manual PDF for the 300A Auger Platform and the 300 Grass Seed Special. Exploded views carry the drive train, reel, auger and cutterbar work, showing how the PTO driveline and platform gear case go back together. The platform wiring harness diagram traces the left and right warning light circuits, and diagnosing malfunctions charts head every major system. Set the drive belt spring on a 36 or 66 Hay Conditioner to 140 mm (5 1/2 in.), and torque a 1/2-inch Grade 1 cap screw to 33 N·m (25 lb-ft) lubricated. Out in the shed after dark, you have no one to ask. Bookmarked and clean enough to print, so the pages can ride out to the bench and take some grease before the field dries.
What's Inside This John Deere 300A Auger Platform & 300 Grass Seed Special Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 5-24 | Safety, Specifications, Lubrication, Platform Lift Cylinder Lockout |
| Drive Train | 25-68 | PTO Driveline, Platform Gear Case, Right and Left Cross Shafts, Adjustments |
| Reel | 69-90 | Diagnosing Malfunctions, Repair Reel, Adjust Reel |
| Auger | 91-114 | Diagnosing Malfunctions, Repair Auger, Adjust Auger |
| Cutting Components | 115-154 | Diagnosing Malfunctions, Cutterbar, Knife Drive Case |
| Electrical | 155-164 | General Information, Warning Light, Connector, Contact |
| Hay Conditioner | 165-226 | Hay Conditioner All Models, Hay Conditioner 36-66, Hay Conditioner 31-61 |
| Fabricated Tools | 227-230 | Gear Block, Sheave Plate, Shim, Wrench |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Unified Inch Bolt and Cap Screw Torque (Grade 1, 1/4 in) | 3.7 N·m (2.8 lb-ft) lubricated, 4.7 N·m (3.5 lb-ft) dry | p. 19 |
| Unified Inch Bolt and Cap Screw Torque (Grade 1, 5/16 in) | 7.7 N·m (5.5 lb-ft) lubricated, 10 N·m (7 lb-ft) dry | p. 19 |
| 300A | ||
| Bushing press depth | flush plus or minus 0.5 mm (0.02 in.) | p. 148 |
| 36-66 Hay Conditioner | ||
| Conditioner Drive Belt Spring Length | 140 mm (5 1/2-in.) | p. 195 |

















