Machine models
Kubota R420S and R520S Backhoe specifications
| Listing-entry count |
|---|
| 2 |
| Publisher name | Source guide | Listing-entry count | Labels named by the source |
|---|---|---|---|
| Kubota | R420S and R520S Backhoe | 2 | R420S and R520S |
| Specification | R420S | R520S |
|---|---|---|
| Load Height - Std | 6.7 ft | 6.7 ft |
| Reach From Swivel - Std | 12.14 ft | 12.14 ft |
| Dig Depth - Std | 9.03 ft | 9.03 ft |
| Specification | R420S | R520S |
|---|---|---|
| Transport Length | 15.52 ft | 16.9 ft |
| Transport Width | 5.39 ft | 5.78 ft |
| Transport Height | 8.16 ft | 8.47 ft |
| Specification | R420S | R520S |
|---|---|---|
| Clearance At Max Dump Height | 7.27 ft | 8.67 ft |
| Bucket Width | 59.85 in | 69.3 in |
| Bucket Capacity | 0.53 yd3 | 0.75 yd3 |
| Specification | R420S | R520S |
|---|---|---|
| Number Of Cylinders | 3 | 4 |
| Engine Model | D1503-TRP-1 | V2203-RP |
| Gross Power | 39.5 hp | 44.4 hp |
| Power Measured @ | 2,600 rpm | 2,600 rpm |
| Displacement | 91.6 cu in | 134.3 cu in |
| Specification | R420S | R520S |
|---|---|---|
| Operating Weight 4wd | 7,518 lb | 8,025 lb |
| Turning Radius | 10.2 ft | 11.2 ft |
| Specification | R420S | R520S |
|---|---|---|
| Transmission Type | LST | LST |
| Number Of Forward Gears | 2 | 2 |
| Number Of Reverse Gears | 2 | 2 |
| Max Speed - Forward | 12.5 mph | 12.5 mph |
| Specification | R420S | R520S |
|---|---|---|
| Pump Type | Gear | Gear |
| Pump Flow Capacity | 11.1 gpm | 11.1 gpm |
| Relief Valve Pressure | 2,958 psi | 2,958 psi |
| Source guide | Differing-field count reported |
|---|---|
| R420S and R520S Backhoe | 12 |
| Figure | R420S | R520S |
|---|---|---|
| Engine horsepower per 1,000 lb of weight | 5.3 | 5.5 |
| Pump flow per engine horsepower | 0.28 gpm | 0.25 gpm |
History and service record of R420S and R520S Backhoe
- Super series. Kubota introduced the R420S and R520S in the R20 Super Series in 2010 (report of 28 September 2010), four-wheel-drive machines with load-sensing transmission that shifts automatically between high and low, 40 degrees of articulation, 8 degrees of frame oscillation and an optional factory cab. Kubota R420S and R520S, Construction Equipment, 28 September 2010.
- Kubota in construction machinery. Kubota established Kubota Construction Machinery Co., Ltd. in 1953 and started designing and selling products, focusing on power shovels, using experience from building mining winches. Construction Machinery, Evolution of Kubota Technology, Kubota.
- The company and its US marketer. Kubota was founded in February 1890 in Osaka by Gonshiro Kubota. Kubota Tractor Corporation is the American corporation that markets and distributes Kubota products in the United States, headquartered in Grapevine, Texas. Kubota, Wikipedia.
R420S and R520S Backhoe: dated market and recall observations
The R420S and R520S Backhoe and the R420S and R520S Wheel Loader carry the same model names, so the used-market, recall and owner notes for both are on that page.
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Kubota R420S and R520S Backhoe: Configuration records
R420S
| Specification | Source figure |
|---|---|
| Backhoe | |
| Load Height - Std | 6.7 ft |
| Reach From Swivel - Std | 12.14 ft |
| Dig Depth - Std | 9.03 ft |
| Dimensions and weight | |
| Transport Length | 15.52 ft |
| Transport Width | 5.39 ft |
| Transport Height | 8.16 ft |
| Loader | |
| Clearance At Max Dump Height | 7.27 ft |
| Bucket Width | 59.85 in |
| Bucket Capacity | 0.53 yd3 |
| Engine | |
| Engine Model | D1503-TRP-1 |
| Gross Power | 39.5 hp |
| Power Measured @ | 2,600 rpm |
| Displacement | 91.6 cu in |
| Number Of Cylinders | 3 |
| Operational | |
| Operating Weight 4wd | 7,518 lb |
| Turning Radius | 10.2 ft |
| Transmission and speeds | |
| Transmission Type | LST |
| Max Speed - Forward | 12.5 mph |
| Number Of Forward Gears | 2 |
| Number Of Reverse Gears | 2 |
| Hydraulic | |
| Pump Flow Capacity | 11.1 gpm |
| Pump Type | Gear |
| Relief Valve Pressure | 2,958 psi |
R520S
| Specification | Source figure |
|---|---|
| Backhoe | |
| Load Height - Std | 6.7 ft |
| Reach From Swivel - Std | 12.14 ft |
| Dig Depth - Std | 9.03 ft |
| Dimensions and weight | |
| Transport Length | 16.9 ft |
| Transport Width | 5.78 ft |
| Transport Height | 8.47 ft |
| Loader | |
| Clearance At Max Dump Height | 8.67 ft |
| Bucket Width | 69.3 in |
| Bucket Capacity | 0.75 yd3 |
| Engine | |
| Engine Model | V2203-RP |
| Gross Power | 44.4 hp |
| Power Measured @ | 2,600 rpm |
| Displacement | 134.3 cu in |
| Number Of Cylinders | 4 |
| Operational | |
| Operating Weight 4wd | 8,025 lb |
| Turning Radius | 11.2 ft |
| Transmission and speeds | |
| Transmission Type | LST |
| Max Speed - Forward | 12.5 mph |
| Number Of Forward Gears | 2 |
| Number Of Reverse Gears | 2 |
| Hydraulic | |
| Pump Flow Capacity | 11.1 gpm |
| Pump Type | Gear |
| Relief Valve Pressure | 2,958 psi |