Kubota's GR2846A snowblower attachment gets full factory coverage here (OEM #77700-03964), from first bolt through spring storage. Assembly runs both wiring harness installations, tractor side and snowblower side, plus the K.R.A. System Override Mode steps. Six pages of safety warnings flag the auger, discharge chute, and rotating gear hazards. A lubrication diagram maps the grease points: drive chain, gearbox, auger, and rotation gear. Controls are split by function: engine speed, traction and stability, up/down positioning, drive engagement, and the deflector and skid shoe settings. The hard numbers are here too. Drive chain deflection stays between 1/16" and 1/8", and shear bolts torque to 9 FT-LBS (12N-M) with grade 5 replacements listed by part number. When the blower quits mid-storm, the answer is bookmarked by section, searchable by keyword, and ready on your phone at the machine.
What's Inside This Kubota GR2846A Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Decals | 11 | Replace Immediately If Damaged, To Avoid Serious Injury Keep Hands Out Of This Discharge Chute While Engine Is Running |
| Assembly | 12-19 | 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 | 20-25 | Operating Controls (Engine Speed, Work And Travel Speed, Increasing Traction And Stability, Up And Down Control, Engaging The Drive Mechanism) |
| Maintenance | 26-28 | Auger Repositioning, Shear Bolts, Gearbox, Oil Level Check, Oil Change, Storage |
| Lubrication | 29 | Use A Grease Gun And Lubricate As Follows, Drive Chain, Auger, Gearbox, Rotation Gear, Lubrication Diagram |
| Parts | 30-37 | Introduction, Snowblower Assembly, Drive System, Chute with Deflector, Tractor's Electric Components, Worm Gearbox |
| Specification | 38 | Features And Specifications, Type, Overall Width, Overall Height Without Chute, Overall Height With Chute, Overall Length Without Hitch, Cutting Width, Cutting Height |
| Available Options | 39 | Electric Deflector, Drift Cutters, Rear Counterweight Support, Gr2706, Gr2714, Gr2703 |
| Available Equipment | 40 | Fun/Sure Connect Hitch, 48" Blade, 46" Snowblower, 47" Rotary Broom, Gr2700B, Gr2848, Gr2846A, Gr2847 |
| Torque Specification Table | 41-42 | 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
Kubota GR2846A auger stops turning completely after hitting packed snow or frozen debris p. 26
Inspect both shear bolts on the auger and the single impeller bolt per page 26. Swap any sheared bolt for a grade 5 replacement (70060-01338 for auger, 70060-01075 for impeller) and torque to 9 ft-lbs (12 N-m). Never substitute a harder bolt; these are built to fail first and spare the drivetrain.
Manual Section: MaintenanceDischarge chute packs solid and snowblower completely stops throwing snow mid-pass p. 20
Shut the engine down completely before you touch the chute. Follow the clearing procedure on page 20, using only the clean-out tool; never reach into the 46-inch intake housing or discharge opening by hand. Confirm the deflector is fully open and no snow is bridged above the impeller before restarting.
Manual Section: OperationThrowing distance drops noticeably and auger feels sluggish after the first few hours p. 23
Measure drive chain deflection on page 23; it should fall between 1/16" and 1/8" at mid-span. Make the first adjustment at 8 hours, then every 24 hours after. Oil the chain with heavy chainsaw oil every 4 hours of running and after each session per page 29.
Manual Section: OperationChute rotation is stiff or won't complete a full sweep during operation p. 29
Grease the rotation gear every 40 hours per page 29. Clear packed ice and snow off the fittings first; a clogged fitting won't take grease. Run the chute through its full sweep several times afterward to spread the lubricant across the gear.
Manual Section: LubricationGearbox makes a persistent whining or grinding noise during operation, especially in cold weather p. 27
Verify the gearbox oil level per page 27. Fill with AGMA 5EP extreme pressure oil or an SAE 80W90 gear oil equivalent, and change it every 200 hours. A slight whine at cold startup that fades as the machine warms is normal; noise that runs through a full session usually means the oil is low.
Manual Section: MaintenanceFrequently Asked Questions
How do I rotate the discharge chute on a Kubota GR2846A?
A joystick on the tractor controls chute position, called out by a decal on page 11. Assembly instructions cover fitting the electric motor (part # 70060-04080) and its wiring harness for chute rotation, with the gear engagement bolts tightened to 10 ft-lb (13 N-M).
Why does the chute motor on a GR2846A only rotate one direction?
The manual doesn't give a direct cause for the motor turning only one way. It does stress correct wiring: the yellow wire (item 1) and blue wire (item 3) seat into the female connector (item 2) as shown in Figure 3. Proper gear engagement (items 2-3) and bolts (item 4) torqued to 10 ft-lb (13 N-M) matter for normal function too.
How do I troubleshoot a Kubota GR2846A chute rotation problem?
Start with the chute gears (items 2-3): confirm they engage and that the motor (item 1) sits in the right position, torquing bolts (item 4) to 10 ft-lb (13 N-M) if you move it. Then check the wiring harness, particularly the yellow and blue wires seated into the female connector per Figure 3 on page 16.
Where can I find the GR2846A instruction manual?
This page is the owner's manual for the Kubota GR2846A - 46" Fun Connect Snowblower, marked OM 0414SB-A / Rev1 05-17, MANUAL PN 77700-03964. It carries the instructions for safe operation and routine maintenance.
What parts are in the GR2846A drive system?
Drive system parts include a reduction box (part # 70060-01423), a driven shaft with 11-tooth sprocket (part # 77700-04116), a motor gear (part # 77700-04120), and a Chain #40 x 34 links LL (part # 77700-04114). Bolts, washers, nuts, and bearings round it out, all listed in the 'PARTS - DRIVE SYSTEM' table on page 34.
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 Kubota GR2846A manual?
None at all: the PDF is DRM-free. Print whatever sections you want to carry out to the shop. Standard letter or A4 paper both work.
Document Quality
This document is a scanned copy of a physical owner's manual, featuring an OCR layer that allows you to search and copy the full text. The text quality is generally crisp and easy to read throughout the manual. Diagrams and illustrations include both raster images of components and clear line drawings for assembly and parts, with all labels remaining readable. Pages are clean, but you will notice a consistent slight yellowish tint, minor background texture, and some pages have a slight skew from the scanning process. There is one notable blank page at the end of the document.
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