Part of the New Holland Repair Manuals.
When the reel drops out of position halfway through a lodged wheat field, the fix has to come from you, not a dealer an hour away. That is what this 353-page New Holland VariFeed 760CG service manual PDF is for: the factory workshop reference for the grain header, OEM ID 47705703. Hydraulic schematics trace the reel vertical and fore-and-aft positioning circuits plus the cutter control circuit, while wiring diagrams map the harnesses, feeding control system, and cab header controls pin by pin. Header work itself, reel, cutting mechanism, feed auger, frame, fills over a third of the book. Check the friction clutch is set at 1 000 N·m (737.6 lb ft), and meter a suspect height sensor against 1000 Ω ±20% before torquing its replacement to 1.35 N·m. It's just you, the header, and the weather window. Jump by bookmark to the circuit you need, or print the pages and let them get greasy on the bench.
What's Inside This New Holland VariFeed 760CG Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 1-47 | Personal Safety, Safety Signs |
| Main Gearbox and Drive | 48-63 | Power Take-Off Shaft |
| Clutch | 64-73 | Slip Clutch or Flywheel Damper |
| Hydraulic Systems | 74-119 | Reel Vertical Positioning System, Reel Fore-And-Aft Positioning System, Reel Control System, Cutter Control Circuit |
| Electrical Systems | 120-187 | Electrical System, Harnesses and Connectors, Feeding Control System, Cab Header Controls |
| Attachment/Header Reel | 190-195 | Knife Cylinder, Flow Divider Valves, Reel Fore/Aft Cylinder, Reel Up/Down Cylinder, Reel Drive Motor, Left Knife Motor, Right Knife Motor |
| Attachment/Header Reel Control System | 196-201 | Hydraulic Reel Drive Motor, Reel Drive Motor Mount, Driven Sprocket 51T, Reel Drive Chain, Shield, Drive Sprocket 17T, Drive Shield Base |
| Attachment/Header Cutting Mechanism | 202-271 | Wobble Box, Wobble Box Drive Belt, Cutting Blade Drive Shaft, Sickle Cutterbar, Belt Tensioner, Auger Drive |
| Attachment/Header Feed Auger | 272-329 | Feed Auger, Auger Support Bearing, Stripper, Feed Auger Drive Chain, Drive Sprocket, Retractable Finger Assembly |
| Platform, Cab, Bodywork, and Decals | 330-353 | Machine Shields and Guards, Decals and Plates |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| M4 Metric Non-Flanged Class 8.8 Bolt and Class 8 Nut (Unplated) | 2.2 N·m | p. 34 |
| M5 Metric Non-Flanged Class 8.8 Bolt and Class 8 Nut (Unplated) | 4.5 N·m | p. 34 |
| Friction clutch set at (Left-hand side) | 1 000 N·m (737.6 lb ft) | p. 45 |
| Maximum Voltage for height sensors | 12 V | p. 160 |
| Resistance for height sensors | 1000 Ω +/- 20% | p. 160 |
| Knife section clearance to hold downs | 0.5 - 1 mm | p. 252 |
| Wobble box oil capacity | 2.2 L | p. 243 |
| Filler plug torque | 10 - 15 Nm | p. 242 |
| Knife guard clearance | 0.2 mm | p. 251 |
| Knife guard alignment deviation | 0.5 mm | p. 251 |
| Maximum slope operation | 26% | p. 8 |
| Reel speed range | 0 - 60 RPM | p. 45 |
New Holland VariFeed 760CG Common Problems This Manual Covers
New Holland 760CG knife sections breaking and ragged cut, crop left standing in the row
Remove the knife and inspect every section for cracks and rounded edges. Replace worn sections, then set hold down clearance to 0.5 - 1 mm as shown on page 252. Check guard alignment too; straighten any guard deviating more than 0.5 mm (page 251) before running the header again.
Manual Section: Attachment/Header Cutting Mechanism p. 252Reel tines bent or missing, crop pushed forward and not feeding onto the cutterbar
Inspect the reel and replace bent or missing tines before the next pass. Verify tine timing so fingers clear the cutterbar, and keep reel speed matched to ground speed within the 0 - 60 RPM range listed on page 45; overspeeding the reel in down crop snaps tines and shells grain.
Manual Section: Attachment/Header Reel p. 45Wobble box knocking or running hot at the knife drive end of the header
Drain the wobble box and check the oil for metal flakes. Refill with 2.4 L of fresh oil, the capacity listed on page 219. If the knock continues, rebuild the unit and set bearing preload to 0.1 - 0.4 N·m during reassembly; the preload check is on page 235.
Manual Section: Wobble box service p. 219Header drive slipping under heavy load, knife stalls while the reel keeps turning in thick crop
Check the drive belts for glazing and correct tension first, then move to the slip clutch. Verify the friction clutch releases at 1000 N·m (737.6 lb ft), the factory setting for the left-hand side. Rebuild or recalibrate the clutch using the procedure in the clutch section starting on page 64.
Manual Section: Clutch p. 64Automatic header height hunting or dead, cutterbar rides high and leaves uneven stubble
Test each height sensor with a multimeter; resistance should read 1000 Ω +/- 20% as specified on page 160. Replace any sensor out of range and torque the mounting hardware to 1.35 N·m so the arm stays put. Check the harness connectors for corrosion using the electrical testing section starting on page 120.
Manual Section: Header feeding sensor testing p. 160Crop wrapping and plugging at the feed auger in damp or tough straw conditions
Clean out the header completely, then measure the stripper bar clearance behind the auger and set it to 3 mm as specified on page 303. Slow your ground speed in damp or green crop and keep the auger area clear of buildup at every field-edge stop.
Manual Section: Attachment/Header Feed Auger p. 303Frequently Asked Questions
What is the torque spec for the M16 knife assembly to wobble arm bolts on a New Holland VariFeed 760CG?
For the M16 bolts used to secure the knife assembly to the wobble arm, the torque specification is 210 - 285 N·m (154.9 - 210.2 lb ft). p. 242
What is the oil capacity for the wobble box on the New Holland VariFeed 760CG?
The wobble box requires 2.4 liters (2.5 US qt) of NEW HOLLAND AMBRA HYPOIDE 90 oil for a full fill, or 2.2 liters (0.58 US gal) as specified in the filling procedure. p. 219
What is the procedure for checking the oil level in the knife drive gearbox?
The oil level in the knife drive gearbox should be checked every 50 operating hours. To check, lower the header to the ground, remove the plug with the dipstick, clean it, and reinsert it fully to verify the oil level reaches the reference notch. p. 55
What is the torque spec for the drive pulley nut on the knife drive shaft of a New Holland VariFeed 760CG?
The nut for the drive pulley on the knife drive shaft must be torqued to 299.6 N·m (221 lb ft). p. 239
How do I adjust the chain tension for the reel drive motor?
The chain tension is correct when it is just possible to move a link laterally across the sprocket by hand. Adjustment is performed by loosening the jam nut (1) and using the cap screw (2) to set the tension. p. 106
What exactly do I receive with this New Holland 760CG Service Manual?
Delivery is instant: a 353-page searchable PDF is yours the second checkout clears. Laptop, tablet, or phone, all fine.
Am I able to print pages from this New Holland 760CG manual?
Print away. There is no DRM and no page limit. Many buyers print one chapter at a time and leave the rest on a tablet.
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