Part of the Kubota Operator Manuals.
This is the factory Kubota operator manual for the GR2846A front-mount snowblower (publication 77700-03964), covering units from serial 21216879 and up. Across 42 pages it walks through assembly, wiring harness installation, operating controls, maintenance, lubrication, and a full parts breakdown for the snowblower, drive system, chute, and worm gearbox.Use it to attach and remove the blower from the tractor subframe, wire the chute rotation controls, set drive chain deflection, service the gearbox, and replace the auger and impeller shear bolts with the correct grade 5 hardware. Torque values, lubrication intervals, and specifications are included so you can service the machine to spec rather than by guess.Delivered as an instantly downloadable PDF you can read on any device or print for the shop.
What's Inside This Kubota GR2846A Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety Precautions | - | Before Operation, Notice, Maintenance, Storage |
| Decals | - | Replace Immediately If Damaged, To Avoid Serious Injury Keep Hands Out of This Discharge Chute While Engine Is Running |
| Assembly | - | Chute & Rotation, Installation of the Wiring Harness on the Tractor, Installation of the Wiring Harness on the Snowblower, Attaching the Snowblower to the Subframe |
| Operation | - | Operating Controls (Engine Speed, Work and Travel Speed, Increasing Traction and Stability, Up and Down Control, Engaging the Drive Mechanism) |
| Maintenance | - | Auger Repositioning, Shear Bolts, Gearbox, Oil Level Check, Oil Change, Storage |
| Lubrication | - | Use a Grease Gun and Lubricate As Follows, Drive Chain, Auger, Gearbox, Rotation Gear, Lubrication Diagram |
| Parts | - | Introduction, Snowblower Assembly, Drive System, Chute with Deflector, Tractor's Electric Components, Worm Gearbox |
| Specification | - | Features and Specifications, Type, Overall Width, Overall Height Without Chute, Overall Height with Chute, Overall Length Without Hitch, Cutting Width, Cutting Height |
| Available Options | - | Electric Deflector, Drift Cutters, Rear Counterweight Support, Gr2706, Gr2714, Gr2703 |
| Available Equipment | - | Fun/Sure Connect Hitch, 48" Blade, 46" Snowblower, 47" Rotary Broom, Gr2700B, Gr2848, Gr2846A, Gr2847 |
| Torque Specification Table | - | Use the Following Torques When Special Torques Are Not Given, Bolt Head Identification, Inches Bolt Size, Metric Bolt Size, Grade 2, Grade 5, Grade 8, Class 5.8 |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| General Torque Specification Table | Values apply to fasteners as received from supplier dry, or when lubricated with normal engine oil. They do not apply if special graphited or moly sidulphide greases or other extreme pressure lubricants are used. These values apply to dry conditions; under lubricated conditions reduce by 25% the torques in this table. Torque tolerance +0%, -15% of torquing values. Unless otherwise specified use torque values listed above. | p. 41 |
| Shear bolt torque | 9 FT-LBS (12N-M) | p. 11 |
| Shear bolt replacement type (auger) | grade 5 shear bolt (70060-01338) | p. 26 |
| Spring pin dimensions | 5/16" dia. x 1 1/4" Ig. | p. 37 |
| Drive chain deflection | between 1/16" and 1/8" | p. 23 |
| Drive chain type | Chain #40 | p. 38 |
| Gearbox oil type | AGMA 5EP extreme pressure oil, SAE 80W90 gear oil or equivalent | p. 27 |
| Gearbox oil change interval | every 200 hours of use | p. 27 |
| Snowblower Overall Width | 46" | p. 38 |
| Snowblower Approx. Shipping Weight | 260 lbs | p. 38 |
| Auger Drive Ratio | Worm gear box ratio 5:1 | p. 38 |
| Number of Shear Bolts on Auger | 2 | p. 38 |
Kubota GR2846A Common Problems This Manual Covers
Shear bolts snap after hitting obstacles
Auger and impeller shear bolts break when the blower hits packed snow or hidden debris, protecting the drivetrain but stopping snow flow until replaced. The manual calls for grade 5 shear bolts only (part 70060-01338 for the auger, 70060-01075 for the fan).
Manual Section: Shear Bolts p. 26Drive chain loosens and slips
A stretched or loose drive chain causes uneven power transfer to the auger. The manual gives the deflection target of 1/16 inch to 1/8 inch and the adjustment procedure.
Manual Section: Drive Chain Adjustment p. 23Gearbox runs low or noisy
Grinding or binding from the worm gearbox often traces to low or old oil, or a missing spring pin. The manual specifies SAE 80W90 gear oil and a 200 hour change interval.
Manual Section: Gearbox p. 27Discharge chute will not rotate
Chute rotation problems usually come back to the wiring harness or rotation gear. The manual covers chute and rotation assembly and how the harness connects to both tractor and snowblower.
Manual Section: Chute & Rotation p. 12Auger turns unevenly or bearings wear
Intermittent auger rotation and support-point wear show up after heavy use. Regular greasing of the auger and rotation gear at 40 hour intervals is covered in the lubrication section.
Manual Section: Auger p. 29Auger repositioning after impact
After a hard impact the auger can need repositioning before it will drive correctly again. The maintenance section walks through the procedure alongside shear bolt service.
Manual Section: Auger Repositioning p. 26Frequently Asked Questions
Which machine does this manual cover?
It is the Kubota operator manual for the GR2846A front-mount snowblower, publication 77700-03964, covering units from serial 21216879 and up. It includes assembly, operation, maintenance, lubrication, parts, and specifications.
Does it list torque specifications for the fasteners?
Yes. The Torque Specification Table gives values by bolt size and grade, for example 11 N-m (8 lbs-ft) for a 1/4 inch-20NC grade 5 bolt, and notes to reduce listed torques by 25 percent under lubricated conditions. p. 41
What shear bolts does the GR2846A use?
The manual specifies grade 5 shear bolts only: part 70060-01338 for the auger and 70060-01075 for the fan. The auger uses two shear bolts and the impeller uses one. p. 26
What gearbox oil and change interval does it recommend?
The maintenance section calls for AGMA 5EP extreme pressure oil, SAE 80W90 gear oil, or equivalent, with an oil change every 200 hours of use. p. 27
How will I receive this Kubota GR2846A Operator Manual?
Checkout delivers a 42-page searchable PDF right away. Open it on a laptop, tablet, or phone and bring it straight to the shop floor.
Can I print this manual?
Yes, print freely — the PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper both work.
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