Part of the Kubota Operator Manuals.
This Kubota Operator Manual covers the BX1870D, BX2370D, and BX2670D sub-compact diesel tractors, powered by the D722, D902, and D1005 engines. Across 49 pages it is the factory owner reference for setting up, operating, and maintaining these BX-series machines.
It walks through the controls and instrument panel, pre-operation daily checks, engine starting, PTO and three-point hitch use, tire and ballast setup, and the full periodic service schedule with lubricant and interval tables.
With this PDF you can confirm PTO power and hydraulic figures for your model, torque the wheel bolts, change the engine and transmission oil filters correctly, keep the radiator screen clean to avoid overheating, and follow the 50-hour first-service steps. Formatted as a clear, printable download you can keep with the tractor or in the shop.
What's Inside This Kubota BX1870D, BX2370D, BX2670D Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Safe Operation | - | Before Operating the Tractor, Cab, ROPS (Service As Required, Storage, Troubleshooting, Options, Appendices, Index), Parking the Tractor, Operating the P.T.O., Using 3-Point Hitch |
| Danger, Warning and Caution Labels | - | Part No. K2651-6557-2, Part No. K2561-6548-2, Part No. K2561-6552-2, Part No. K1272-6585-2, Part No. K2591-6557-2, Part No. K2581-6554-1, Part No. K2581-6555-1 |
| Servicing of Tractor | - | Part No. K1221-6118-1, Part No. K2591-6564-2, Warranty, Scrapping the Tractor and Its Procedure, Care of Danger, Warning and Caution Labels |
| Specifications | - | PTO Power, Engine, Capacities, Dimensions, Weight, Traveling System |
| Implement Limitations | - | Tread, Actual Figures, Forestry Application, Front Loader, Rear Ballast, Implement As Counter Weight |
| Instrument Panel and Controls | - | Instrument Panel, Switches and Hand Controls |
| Pre-Operation Check | - | Daily Check, Operating the Engine, Starting the Engine, Block Heater, Stopping the Engine |
| Operating the Tractor | - | Operating New Tractor, Changing Lubricating Oil for New Tractors, Boarding and Leaving the Tractor |
| Parking | - | Hourmeter/Tachometer |
| Operating Techniques | - | Differential Lock, Operating the Tractor on a Road, Operating on a Slopes and Rough Terrain, Transport the Tractor Safely, Directions for Use of Power Steering |
| PTO | - | PTO Operation (PTO Select Lever, Rear PTO, Mid-PTO, Mid-Rear PTO), PTO Clutch Lever, PTO Shaft Cover and Shaft Cap |
| Three-Point Hitch & Drawbar | - | Stationary PTO, PTO Drive Shaft, Use Holder Plate to Hold Lower Link Higher While Mowing with Mid-Mount Mower Only Over Uneven Terrain |
| Point Hitch | - | Attaching and Detaching Implements, Lifting Rod, Top Link, Check Chains, Hitch |
| Tires, Wheels and Ballast | - | Tires (Inflation Pressure, Dual Tires), Wheel Tread (Front Wheels, Rear Wheels), Ballast (Front Ballast, Front End Weights, Rear Ballast, Liquid Ballast in Rear Tires) |
| Maintenance | - | Service Intervals, Lubricants, Fuel and Coolant, Engine Oil, Fuel, Transmission Oil |
| Periodic Service | - | How to Open the Hood (Engine Cover) |
| Storage | - | Tractor Storage, Removing the Tractor From Storage, Engine Troubleshooting |
| Options | - | Tires, Arm Rest, Speed Set Device, Grille Guard, Engine Block Heater, Rear Work Light, Front End Weights, Rear Wheel Weight |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Front wheel bolt torque | 149.2 to 179.0 N-m (15.2 to 18.3 kgf-m, 110 to 132 lbf-ft) | p. 37 |
| Rear wheel bolt torque | 108.5 to 130.2 N-m (11.1 to 13.3 kgf-m, 80 to 96 lbf-ft) | p. 37 |
| Engine oil filter tightening torque | additional 1/2 turn only (by hand) | p. 40 |
| Engine oil filter replacement interval | every 200 Hr | p. 32 |
| Transmission oil filter tightening torque | additional 1/2 turn only (by hand) | p. 41 |
| Transmission oil filter replacement interval | every 200 Hr | p. 32 |
| Air cleaner element cleaning compressed air pressure | under 205kPa (2.1kgf/cm², 30psi) | p. 38 |
| Air cleaner element replacement interval | Once yearly or after every sixth cleaning, whichever comes first | p. 38 |
| Fuel filter replacement interval | every 500 Hr | p. 32 |
| BX1870D | ||
| Coolant capacity | 2.9 L (3.06 U.S.qts.) | p. 33 |
| BX2370D | ||
| Coolant capacity | 3.1 L (3.3 U.S.qts.) | p. 33 |
Kubota BX1870D, BX2370D, BX2670D Common Problems This Manual Covers
Oil leak or low level after service
After an oil change, a drop in level or a leak often means the old filter O-ring was left on, a double O-ring on the new filter, or a loose drain plug. The Periodic Service section covers the engine oil filter change and the after-service check.
Manual Section: Periodic Service p. 34Transmission fluid low after filter change
The transmission fluid level drops a little once a new filter fills, and an incomplete refill leaves it low. The Periodic Service section explains checking and topping the fluid after replacing the transmission oil filter.
Manual Section: Periodic Service p. 34Overheating from a dirty radiator screen
A clogged radiator screen or grill restricts airflow and drives temperatures up during work. The Pre-Operation Check section calls out daily cleaning of the screen and the coolant level check that prevent it.
Manual Section: Pre-Operation Check p. 15Vibration or loose hardware
Unexpected vibration or noise usually comes from loose bolts and pins or worn implement parts found on a walk-around. The Maintenance section lists the service intervals and inspection points that catch it early.
Manual Section: Maintenance p. 32First 50-hour break-in service
New BX tractors need early oil and filter changes, and running at full speed too soon during break-in causes trouble. The Operating the Tractor section covers operating a new tractor and changing lubricating oil during break-in.
Manual Section: Operating the Tractor p. 17Wheel bolt torque check
Wheel bolts can loosen in service and need to be checked to spec. The Tires, Wheels and Ballast section covers wheel tread, ballast, and the bolt torque values for the front and rear wheels.
Manual Section: Tires, Wheels and Ballast p. 29Frequently Asked Questions
Which tractors does this manual cover?
It covers the Kubota BX1870D, BX2370D, and BX2670D sub-compact tractors, which use the D722, D902, and D1005 diesel engines. Publication number K2771-7121-1.
What does the operator manual include?
It covers safe operation, controls, specifications, daily checks, engine starting, PTO and three-point hitch use, tires and ballast, and the periodic service schedule. It is an owner reference, not a full overhaul manual.
Does it give wheel bolt torque values?
Yes. The Tires, Wheels and Ballast section covers wheel tread, ballast, and the front and rear wheel bolt torque figures. p. 29
Does it cover maintenance intervals and filters?
Yes. The Maintenance section lists service intervals and lubricants, and the Periodic Service section details oil and filter changes, coolant, air cleaner, and fuel filter tasks. p. 32
Is this Kubota BX1870D Operator Manual a digital download?
A 49-page Operator Manual in searchable PDF, ready to download the moment checkout completes. Open it on a computer, tablet, or phone with no shipping wait.
Can I print specific sections of this manual?
No restrictions: the PDF is DRM-free. Print whatever sections you want to carry out to the shop. Standard letter or A4 paper both work.
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