Part of the New Holland Repair Manuals.
Publication 47851907 is New Holland's own factory book for the HS Series sickle headers, a 212-page service manual covering all four models. Wiring diagrams anchor the electrical chapters of this New Holland 12HS, 14HS, 16HS, 18HS service manual PDF, tracing harnesses, connectors, external lighting, and the chopping and cutting control circuits. The cutting mechanism claims the largest share of the book, from wobble box rebuild and guard alignment through stub guards, with the reel, feed auger, pickup, roll conditioning, and head hydraulic drive filling out the rest. Set knife clip clearance to the factory 0.12 to 0.38 mm (0.005 to 0.015 in) and pull the guard bolts to 135 N·m (99.6 lb ft) before the cutterbar goes back together. Hay down is no time to hunt one torque figure. Print the pages you need and let them take grease on the bench; bookmarks and a full text layer get you to them fast.
What's Inside This New Holland 12HS, 14HS, 16HS, 18HS Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 1-24 | Foreword - Important Notice Regarding Equipment Servicing, Safety Rules (-: Personal Safety, Ecology and the Environment), Torque - Minimum Tightening Torques for Normal Assembly |
| Hydraulic Systems | 25-44 | Head and Header Hydraulic Drive |
| Electrical Systems | 45-86 | Electrical System, Harnesses and Connectors, External Lighting, Chopping and Cutting Control Systems |
| Attachment/Header Reel Control System | 87-94 | Pickup Drive Chain, Driven Sprocket, Reel Control System |
| Attachment/Header Reel | 95-108 | Pickup Reel, Reel Removal, Reel Installation, Tine Bars, Bearing Replacement |
| Attachment/Header Feed Auger | 109-122 | Auger Removal, Auger Installation, Auger Static Description, Variable-Drive Sheave |
| Attachment/Header Cutting Mechanism | 123-172 | Sickle Cutterbar, Wobble Box, Guard Alignment, Stub Guards, Wobble Drive Assembly |
| Product Feeding | 173-212 | Pickup, Roll Conditioning |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Metric non-flanged hardware M4 torque | 2.9 N·m | p. 9 |
| Guard bolt torque | 135 N·m (99.6 lb ft) | p. 135 |
| Knife clip to knife section clearance | 0.12 - 0.38 mm (0.005 - 0.015 in) | p. 137 |
| Rocker arm mount and drop link bolt torque | 115 N·m (85 lb ft) | p. 153 |
| Yoke clamp bolts torque | 68 N·m (50 lb ft) | p. 152 |
| Header drive hydraulic pressure | 24132 kPa (3500 psi) | p. 18 |
| Conditioner gearbox oil capacity | 0.59 l (0.62 US qt) | p. 18 |
| Reel speed | 52 - 83 RPM | p. 18 |
| Auger speed | 287 RPM | p. 18 |
| Roll speed | 717 RPM | p. 18 |
| Knife bolt torque | 8 - 11 N·m (71 - 97 lb in) | p. 129 |
| 12HS | ||
| Header weight (12HS, rubber rolls) | 1647 kg (3631 lb) | p. 18 |
| 14HS | ||
| Header weight (14HS, rubber rolls) | 1770 kg (3902 lb) | p. 18 |
| Class (CL) 10.9 bolt and Class (CL) 10 nut (metric non-flanged hardware, PLN/ZND finish) | ||
| Metric non-flanged hardware M24 torque | 1016 N·m | p. 9 |
