This Kubota GR2700B / GR2704A Operator Manual (OEM #OM 0414QH-A) does one thing across its 36 pages: installs and runs your tractor attachments the way Kubota intended. Eleven pages of step-by-step assembly cover the Fun/Sure Connect Hitch and GR2704A Drive Kit, with hydraulic hose routing spelled out for both the GR2120 diesel and GR2020 gas tractors. The K.R.A. System Override Mode walkthrough shows how to engage reverse safely. A torque specification table runs through inch and metric bolt sizes, so fastener values are never a guess. Hydraulic parts are catalogued down to the 60-inch (#70060-02472) and 75-inch (#70060-02471) hoses and the 1/4-inch NPT quick couplers. Your machine won't assemble itself from forum threads. Every section is bookmarked: jump to a procedure, search a spec, get back to work.
What's Inside This Kubota GR2700B, GR2704A Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Assembly | 10-21 | Assembling the Fun/Sure Connect Hitch (Attaching The Hitch To The Subframe), Installing the Drive Kit – Gr2704A (Assembling: UHMW Guides, Engagement Mechanism) |
| Operation - Maintenance | 22 | Operation (Up And Down Control), Maintenance, Storage |
| K.R.A. System Override Mode | 23 | For Lawn Tractors Equipped With K.R.A. System, Start The Engine, Set The Throttle To The "FAST" Position, Push The PTO Lever To The "ENGAGED" Position |
| Parts | 24-31 | Introduction, Hitch, Drive Kit - GR2704A, Hydraulic Components, Driveline - 77700-03438, Driveline - 77700-03433 |
| Available Equipment | 32 | Fun/Sure Connect Hitch, 48" Blade, 46" Snowblower, 47" Rotary Broom |
| Torque Specification Table | 33-34 | Bolt Head Identification, INCHES Bolt Size, METRIC Bolt Size |
| Assembly of GR2700B Kit | 35-36 | Hardware Bag, Bushing Ø1 1/8" X 3/8"lg, Dust Cap 1/4"NPT, Female Quick Coupler 1/4"NPT, Male Quick Coupler 1/4"NPT, 90° Elbow 1/4"NPT RM, Hex. Bolt 1/4"NC X 3/4", PTD |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| GR2704A, GR2020, GR2120 | ||
| Hydraulic hose 60 inch length | 60 inches | p. 29 |
| Hydraulic hose 75 inch length | 75 inches | p. 29 |
| Elbow 90° 1/4 inch NPT size | 1/4 inch NPT | p. 29 |
| Elbow 90° replacement part number | 70060-02449 | p. 29 |
| All Models | ||
| Recommended hydraulic oil type | type of oil recommended by Kubota in tractor's Operating manual | p. 20 |
| Hitch bolt torque check interval (initial) | 8 hours | p. 22 |
| Hitch bolt torque check interval (subsequent) | 80 hours | p. 22 |
| Pivot points lubrication interval | 40 hours | p. 22 |
| Torque Spec: 1/4"-20NC, Grade 2 | 5.6 lbs-ft | p. 33 |
| Torque Spec: 1/4"-20NC, Grade 8 | 12 lbs-ft | p. 33 |
| Torque Spec: 5/16"-18NC, Grade 5 | 17 lbs-ft | p. 33 |
| GR2704A | ||
| Driveline maximum RPM | 2600 r/min | p. 14 |
Kubota GR2700B, GR2704A Common Problems This Manual Covers
Kubota GR2704A hydraulic attachment lifts or lowers in the wrong direction after installation p. 10
Verify the hydraulic linkage and drive shaft are assembled and pinned in the correct orientation per pages 10-21. Confirm the control lever indexes to the correct position before connecting any load. Re-torque all hitch bolts within the first 8 hours of initial operation (page 22). Use only the hydraulic oil type recommended in your tractor's Operating Manual (page 20).
Manual Section: AssemblyAttachment lift or hydraulic function runs sluggishly, hesitates, or stops responding mid-operation p. 22
Check that all hydraulic quick couplers are fully seated and locked at the 1/4-inch NPT fittings. Inspect hoses for kinks, pinch points, or visible leaks along the full run. Verify the hydraulic oil type matches the recommendation in your tractor's Operating Manual on page 20. Fit dust caps to any disconnected ports immediately to block contamination.
Manual Section: Operation - MaintenanceEngine shuts down automatically during mowing at low throttle, tractor won't stay running p. 23
Set throttle to FAST and engage PTO in the sequence on page 23, exactly as shown. Keep engine RPM in the normal operating range throughout mowing: the K.R.A. system will shut down if RPM falls too low. On GR2704A, confirm driveline speed stays below 2600 r/min (page 14). Complete the startup sequence before applying any load.
Manual Section: K.R.A. System Override ModeHitch attachment rattles or feels loose after the first few hours of use p. 22
Inspect and re-torque all hitch mounting bolts within the first 8 hours of operation, as directed on page 22. Bolts naturally seat and relax during initial break-in. After that first check, inspect and re-torque every 80 hours of use. Match torque values to the bolt grade markings on each bolt head using the table on page 33.
Manual Section: Operation - MaintenanceHitch or attachment pivot points are stiff, binding, or squeaking after storage season p. 22
Lubricate all pivot points with grease every 40 hours of operation, as listed on page 22. After outdoor storage, service every pivot before putting the machine back in service. Work the attachment through its full range of motion after applying grease to distribute lubricant evenly through each joint. Inspect contact surfaces for corrosion and clean before regreasing.
Manual Section: Operation - MaintenanceFrequently Asked Questions
How do I reset the Kubota GR2700B/GR2704A PTO or safety interlock system?
Push the K.R.A. System override switch. That lets the operator maneuver in reverse with the PTO still engaged. To lock the override out permanently, pull the fuse from the system.
What are the torque specs for the Kubota GR2700B/GR2704A mower deck and driveline hardware?
Driveline hardware torques come from the manual's General Specification Table, organized by bolt size and grade. A 1/4"-20NC Grade 5 bolt, for instance, takes 11 N-m (8 lbs-ft), while a 3/8"-16NC Grade 5 bolt takes 42 N-m (31 lbs-ft). Match each fastener to its size and grade in that table for the exact figure.
How to reset Kubota GR2704A safety switch
Engaging the override means pressing the K.R.A. System override switch, which permits reverse travel while the PTO runs. Owners who would rather block that capability can remove the system fuse, disabling the switch entirely.
How to find torque specs for Kubota GR2700B deck bolts
Deck bolt values live in the manual's General Specification Table on page 33, listed by bolt size and grade. A 5/8"-11NC Grade 5 bolt calls for 205 N-m (150 lbs-ft); a 3/8"-16NC Grade 5 bolt calls for 42 N-m (31 lbs-ft). Read off the figure that matches your bolt's stamped grade and diameter.
What are the replacement specifications for hydraulic hoses?
Two hydraulic hoses are catalogued in the Hydraulic Components section. The 60" length, "Hose 60" lg - 1/4"NPT rig. male X 7/16" JIC rig. male," is part number 70060-02472; the 75" length, "Hose 75" lg - 1/4"NPT rig. male X 7/16" JIC piv. fem.," is part number 70060-02471.
Is this Kubota GR2700B, GR2704A Operator Manual a digital download?
Yes. It's a 36-page searchable PDF, available to download the moment checkout clears. Open it on a laptop, tablet, or phone and take it straight out to the machine.
Am I able to print pages from this Kubota GR2700B, GR2704A manual?
Print as many copies as you like; there are no restrictions on the file. Plenty of mechanics just run off the one section they need and keep it at the bench.
Document Quality
This document is a scanned PDF, not a native digital file. You can search and copy text from all pages thanks to an optical character recognition (OCR) layer. The text is generally clear and readable, though it exhibits the slight fuzziness typical of a scanned document rather than being perfectly crisp. All diagrams and illustrations are raster images, which means they may show some pixelation when zoomed, but their labels are mostly readable. The pages are clean with consistent background noise from scanning, and page 34 is largely blank except for "Printed in Canada".
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