Part of the New Holland Repair Manuals.
Rebuilding a hydrostatic pump is the hardest job in this 42-page New Holland 116 service manual PDF (OEM 40011610), and the book opens with it before working back through the rest of the pivot tongue mower-conditioner. Hydraulic schematics trace oil through the master, slave, and swing cylinders, and a troubleshooting chart narrows drive complaints before you pull anything apart. Teardown procedures fill nearly half the pages, from dropping the conditioner rolls to gearbox work and sickle knife replacement, with exploded views to keep reassembly honest. Set the knife head at 0.003 in. to 0.030 in. clearance over the ledger surface, and preload the sickle shaft bearing to 2 in. lbs. to 6 in. lbs. Guess at that preload and you buy the bearing twice. Bookmarked and text-searchable, the file rides on whatever screen you carry to the barn or the windrow.
What's Inside This New Holland 116 Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 4 | Hearing Protective Devices, Safety Chain |
| Hydrostatic System | 5-14 | Pump |
| Hydraulic Cylinders | 15-20 | Master Cylinder, Slave Cylinder, Swing Cylinder |
| Gearboxes | 21-26 | Header Drive Gearbox, Conditioner Gearbox |
| Conditioner Rolls | 27-30 | Removing the Conditioner Assembly, Lower Roll Removal |
| Sickle and Sickle Drive | 31-36 | Sickle Knife Replacement, Sickle Shaft Bearing |
| Reel and Auger | 37-38 | Reel, Auger |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hydrostatic pump back plate cap screws torque | 15 ft. lbs.-18 ft. lbs. (20 N·m-24 N·m) | p. 10 |
| Gearbox front plate cap screws torque | 15 ft. lbs.-18 ft. lbs. (20 N·m-24 N·m) | p. 11 |
| Sickle shaft bearing preload | 2 in. lbs.-6 in. lbs. (0.2 N·m-0.7 N·m) | p. 38 |
| Knife head clearance to ledger surface | 0.003 in.-0.030 in. (0.1 mm-0.8 mm) | p. 32 |
| Minimum clearance between root diameter of one roll and outside diameter of other roll | 0.015 in. (0.38 mm) | p. 30 |
| Hydrostatic system pressure | 3500 PSI (24,133 kPa) | p. 6 |
| Hydrostatic system oil capacity | 25 gallons (94.6 L) | p. 7 |
| Hydraulic Oil Reservoir Capacity | 25 gallons | p. 7 |
| Gearbox Drive Hub Bolt Torque | 70-80 ft. lbs. | p. 22 |
| Sickle Knife Bolt Torque | 85 ft. lbs. | p. 32 |
| Auger Drive Sprocket Bolt Torque | 90 ft. lbs. | p. 38 |
New Holland 116 Common Problems This Manual Covers
New Holland 116 haybine loses hydraulic drive pressure, header and conditioning rolls barely turn
Check reservoir oil level first; the hydrostatic system holds 25 gallons (94.6 L), and low or aerated oil kills drive pressure fast. Run the pressure test on page 6 and compare readings against the 3500 PSI (24,133 kPa) system spec. If pressure stays low, measure case drain volume before condemning the pump.
Manual Section: Hydrostatic System Troubleshooting p. 6Sickle leaves ragged uncut strips of hay and plugs constantly in heavy first cutting
Inspect the sickle sections and replace any that are worn or chipped, following the knife replacement steps starting on page 31. Set knife head clearance to the ledger surface at 0.003 in.-0.030 in. (0.1 mm-0.8 mm), center the knife in its stroke, and torque the knife bolts to 85 ft. lbs. (115 N·m).
Manual Section: Sickle Knife Replacement and Alignment p. 31Conditioning rolls slap together, feed hay unevenly, and strip rubber off the lugs
Start with roll timing and bearing condition; a failed bearing lets the rolls run out of time. Pull the conditioner assembly using the procedure on page 27, replace any rough bearings, and retime the rolls. Verify at least 0.015 in. (0.38 mm) clearance between the root diameter of one roll and the outside diameter of the other, per page 30.
Manual Section: Conditioner Roll Removal and Installation p. 27Heavy knocking and vibration from the sickle drive end at full operating speed
With the PTO shut off, feel the sickle shaft bearings and wobble hub for play; worn bearings hammer themselves loose. Follow the bearing and wobble shaft replacement procedure starting on page 34, then shim sickle shaft bearing preload to 2 in. lbs.-6 in. lbs. (0.2 N·m-0.7 N·m) with the retainer bolts tight.
Manual Section: Sickle Shaft Bearing and Wobble Hub Repair p. 34Growling from the header drive gearbox and the drive hub keeps working loose
Remove the header drive gearbox using the procedure on page 21 and inspect the gears and bearings for wear. When reinstalling the drive hub, torque the attaching bolts to 70 ft. lbs.-80 ft. lbs. (95 N·m-108 N·m), strike the hub with a heavy hammer, and retorque per page 22; a hub left loose will growl again in a day.
Manual Section: Header Drive Gearbox Repair p. 21Hydraulic oil runs hot and the drive gets sluggish after an hour of mowing
Drain and refill the reservoir with clean oil if it looks dark or smells burnt; the system takes 25 gallons (94.6 L) per page 7. Check for foaming in the reservoir, then run the flow meter and case drain tests on page 6 to catch internal leakage before it cooks the fresh oil too.
Manual Section: Hydrostatic System p. 7Frequently Asked Questions
What are the torque specifications for the New Holland 116 gearbox components?
The gearbox mounting cap screws should be tightened to 15-18 ft. lbs. (20-24 N·m). The adapter plate cap screws require 55-60 ft. lbs. (74-81 N·m) of torque. p. 11
What are the replacement specifications for sickle sections on the New Holland 116?
Special knife sections A, B, and C have rivet holes countersunk in the bottom for flush riveting. Sections D and E have rivet holes countersunk in the top for a smooth top surface. p. 31
How do I replace the rubber bushings in the knife head?
Rubber bushings in the knife head, rocker arm support, and connecting rod can be replaced using a vise or press. Always tighten the bolts through the bushings with the knife at the center of its stroke. p. 32
What is the required hydrostatic system pressure for the New Holland 116?
The relief valve is set for 3500 PSI (24,133 kPa) and is nonadjustable. p. 5
What is the torque specification for the hydraulic cylinder rod nut on the New Holland 116?
The rod nut on the hydraulic cylinders must be tightened to 155 ft. lbs. (210 N·m) for the master and slave cylinders, or 250 ft. lbs. (339 N·m) for the swing cylinder. p. 16
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