| Production | |
| Manufacturer | J.I. Case |
| Industrial Crawler tractor | |
| Built in Churubusco, Indiana, USA | |
| J.I. Case 520 Engines | |
| Continental 2.7L 4-cyl gasoline | |
| Continental 2.6L 4-cyl diesel | |
| J.I. Case 520 Transmission | |
| 3-speed gear | |
| J.I. Case 520 Power | |
| Engine (gross) | 50 hp 37.3 kW |
| Engine | 45 hp 33.6 kW |
| Mechanical | |
| Drive | crawler |
| Open operator station. | |
| Photos | |
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| Capacity | |
| Fuel | 17 gal 64.3 L |
| Hydraulic system | 7 gal 26.5 L |
| Hydraulics | |
| Type | open center |
| Capacity | 7 gal 26.5 L |
| Pump flow | 15.5 gpm (dozer) 58.7 lpm |
|   | 19 gpm (loader) 71.9 lpm |
|   | 21 gpm (backhoe-loader) 79.5 lpm |
| Power Take-off (PTO) | |
| Rear PTO | transmission OptOptional |
| Rear PTO Type | 540 (1.375) |
| Engine RPM | 540@1660 |
| Dimensions & Tracks | |
| Weight | 5000 to 10334 pounds |
| 13-inch tracks | |
| J.I. Case 520 attachments | |
| blade | |
| front-end loader | |
| backhoe | |
| 520 Serial Numbers | |
| Location: | Serial number plate on the left side of the 520, below the arm rest. |
| 1959 | 30042040 |
FAQ: How to read a serial number table. | |
| Belt Pulley | |
| Diameter | 8.5 inches 21 cm |
| Width | 6.5 inches 16 cm |
| RPM | 1160 |
| Electrical | |
| Ground | positive |
| Charging system | generator |
| Batteries | 2 |
| Battery volts | 6 |
| Battery AH | 105 |
| References | |
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| The world's largest, most advanced crawler line published in 1959, by J.I. Case | |
| Model 520 Industrial Angling Dozer published in 1959, by J.I. Case | |
| Operator's Instruction Manual 520 Gasoline Crawler (9-811) published in 1959 |
| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on April 4, 2022 |