Part of the New Holland Repair Manuals.
New Holland built the 474, 489, 492, and 1465 Mower-Conditioners as one machine family, and OEM manual #86630605 documents all 170 pages of it, from PTO teardown to reel assembly rebuild. The exploded-view diagrams map every frame, cutter bar, wobble drive, and conditioning roll, alongside the Model 1465 light harness wiring and torque tables for ORFS fittings, pipe threads, and hydraulic tube connections. Step-by-step procedures cover knife replacement, slip clutch adjustment, main gearbox service, and reel bearing swaps. Need a number fast? Conditioner roll gap runs 0.38 mm to 2.5 mm lug-to-lug; the reel drive chain tensions to 6.3 mm deflection. When the machine is down, guessing burns hours. Open this bookmarked PDF on any device and search the spec by keyword.
What's Inside This New Holland 474, 489, 492, 1465 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 3-20 | Foreword, Precautionary Statements, Safety, Serial Number, How the Mower-Conditioner Functions, Power Distribution, Tapered Spline Connections - Hammer Seating |
| Implement Power Take-Off (PTO) | 21-38 | Chapter 1 - PTO (PTO Assembly, Joint Replacement, Telescoping Shaft and Tube, Front PTO Assembly, PTO Shaft Shields, Quick-Detachable Yoke, PTO Drive Shaft, Repair Time Schedule) |
| Hydraulic Systems | 39-44 | Chapter 1 - Hydraulic Cylinders (Hydraulic Cylinders, Optional, Repair Time Schedule), Hydraulic Cylinders, Optional (Removing, Disassembly, Inspection, Assembly) |
| Frames | 45-70 | Lift Frame, Roll Frame, Header Frame, Repair Time Schedule |
| Electrical System | 71-76 | Light Wiring Harness, Model 1465, Installing the Socket, Repair Time Schedule |
| Replacing the Knife Sections | 78-84 | Knife Assembly, Cutter Bar, Knife Head Bolt, Sharpening the Knife Sections |
| Repair Time Schedule | 85-93 | Guards, Knife Head, Knife Head Bushing, Hold-Down Clips |
| Wobble Drive | 94-101 | |
| Main Gearbox | 102-124 | Repair Time Schedule, Replacing the Knife Arm, Header Drive PTO and Jackshaft, Header Drive Belt |
| Replacing the Rolls | 125-133 | Repair Time Schedule, Rolls |
| Installing the Rolls | 134-141 | |
| Drive Sprocket | 142-153 | Roll Pressure System, Repair Time Schedule, Reel Drive Belt, Reel Drive Chain, Drive Sheaves, Reel Drive Sheave, Sprocket, And Jackshaft |
| Repair Time Schedule | 154-164 | Reel Shaft Bearings, Cam Follower Bearing, Reel Tine Bar Clearance with Cam Track, Replacing the Bearings, Replacing the Tines, Reel Shaft End Play, Installing the Reel Assembly and Cam Track, Removing the Reel Assembly and Cam Track |
| Safety Decals | 165-170 |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Models 474, 489, and 492 | ||
| Reel drive chain deflection | 6.3 mm (1/4″) | p. 150 |
| Reel drive chain deflection (adjusted by idler) | 6.3 mm (1/4″) | p. 150 |
| All Models | ||
| Reel drive chain R&R time | 0.50 hours | p. 163 |
| Minimum roll gap between lugs | 0.38 mm (0.015″) | p. 128 |
| Maximum roll gap | 2.5 mm (0.100″) | p. 128 |
| Maximum reel shaft end play | 0.75 mm (0.030″) | p. 157 |
| Cam follower bearing R&R time | 0.25 hours | p. 163 |
| Metric Hardware Torque (M4, Class 5.8, Unplated) | 1.7 N·m | p. 12 |
| Inch Hardware Torque (1/4", SAE Grade 2, Unplated) | 6.2 N·m | p. 13 |
| Hydraulic Tube Nut Torque (1/4" OD, 7/16-20 thread) | 12-16 N·m | p. 14 |
| Model 1465 | ||
| Spring-loaded idler spring bolt extension | 22 mm (7/8″) | p. 150 |
