Part of the Kubota Operator Manuals.
This is the operator manual for the Kubota B4672A and BL4690A backhoe attachments, the factory reference for setting up, operating, and maintaining these units on a compatible Kubota tractor. Its 73 pages combine operating guidance with full parts illustrations.
You get safety precautions and sign locations, specifications, pre-operation checks, and detailed operating instructions covering the controls, stabilizers, backfilling, loading trucks, lifting, and transporting. Lubrication and maintenance sections cover the hydraulic system, bucket service, and swing chain adjustment, backed by a torque tightening chart and complete setting-up instructions with mast charts for different tractor groups.
The parts illustrations map the mainframe, boom, dipper, stabilizer, hydraulic controls, and cylinders with a numerical index. Whether you are mounting the backhoe for the first time or servicing one already in use, this PDF download gives you operation, maintenance, and parts reference in one file, ready to view or print.
What's Inside This Kubota B4672A, BL4690A Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety Precautions | Safety Alert Symbol, Before Operation, During Operation, Maintenance, ROPS and Seat Belt | |
| Safety Signs | Safety Sign Locations, Care of Safety Signs, Safety Sign Illustrations, Part Numbers | |
| Specifications | Digging Depth, Swing Arc, Loading Height, Hydraulic Cylinders, Backhoe Terminology | |
| General Information | General, Model/Serial Information, Backhoe Model Number, Tractor Model Number | |
| Pre-Operation Instructions | Operational Check-Out, Operating Speeds, Backhoe Controls, Stabilizer Placement | |
| Operating Instructions | Operating Speeds, Backhoe Controls, Placing the Stabilizers, Backfilling the Excavation, Loading Trucks, Lifting or Craning, Transporting the Backhoe | |
| Lubrication & Maintenance | Lubrication Fittings, Hydraulic System Service, Backhoe Bucket Service, Swing Chain Adjustment, Hydraulic Circuit Schematic | |
| Torque Tightening Chart | Sae Grade 5, Metric Grade 8.8, Bolt Sizes, Special Torque Applications | |
| Setting Up Instructions | Backhoe/Tractor/ROPS Applications, Tractor Preparation, Backhoe Preparation, Backhoe Sub-Assembly, Mast Charts, Group 1 Tractors, Group 2 Tractors, Group 3 Tractors | |
| Parts Illustrations | Mainframe Components, Seat & Mast Components, Reinforced 3-Point Top Link Brackets, Boom Components, Dipper Components, Stabilizer Components, Hydraulic Controls | |
| Numerical Index | Part Number, Page Reference, Code |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Torque for 5/8-18 nut on 5/8-18x4 hex stop bolt | 95-105 ft. lbs. (13.2~14.5 kgf-m) | p. 24 |
| Swing Arc | 180° | p. 9 |
| Minimum Ground Clearance | 8.5" (216 mm) | p. 9 |
| Digging Force - Curl Cylinder | 2950 lbs (1338 kg) | p. 9 |
| Hydraulic System Capacity | 6.5 US gallons | p. 20 |
| Hydraulic Oil/Filter Change Interval (Subsequent) | 250 hours | p. 20 |
| Swing Chain Adjustment Check Interval (Subsequent) | 40 hours | p. 20 |
| Swing Cylinder Retaining Bolts Torque | 140-160 ft. lbs. (190-218 N-m) | p. 23 |
| ROPS Stop Bolt Torque | 95-105 ft. lbs. (13.2-14.5 kgf-m) | p. 24 |
| Minimum Seat to ROPS Clearance | 40 inches | p. 40 |
| B4672A | ||
| B4672A Digging Depth | 73.9" (1877 mm) | p. 9 |
| BL4690A | ||
| BL4690A Digging Depth | 90.2" (2291 mm) | p. 9 |
