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John Deere 2120 Maintenance
The
John Deere 2120 tractor was manufactured between 1969 and 1972. The JD 2120
powerline components: John Deere four stroke 4-cylinder direct injection
liquid-cooled diesel engine and 8x4 unsynchronized gear transmission, or
two-speed power shift transmission with 16 forward and 8 reverse gears.
A 219 cubic inches (3.6 L) engine has a cylinder bore of 4.02" (102 mm),
piston stroke of 4.33" (110 mm), rated power of 68 hp (50.7 kW), and
maximum torque of 69.6 Nm (51.3 lb-ft) at 1500 rev/min. Max. forward
speed - 18.6 mph (29.9 kph), max. reverse speed - 8.1 mph (13 kph).
The closed center hydraulic system used a piston pump with a flow rate
of 12.4 gal/min (46.9 liters per minute). The hydraulic pressure is 155
bar (2250 psi). The John Deere 2120 is equipped with a power assist
steering, differential hydraulic wet disc brakes, 7.50x16 front tires
and 15.5x38 rear tires. The wheelbase is 86 inches (2180 mm).
| Engine oil capacity, gal (L) |
1.5 (5.7) |
| Engine coolant capacity, gal (L) |
3.0 (11.4) |
| Hydraulic/transmission system capacity, gal (L) |
10.0 (38.0) |
| Belt pulley oil capacity, qts (L) |
1.2 (1.1) |
| Recommended Oil and Fluid |
| Engine oil type |
Torq-Gard, SAE 30, SAE 10W-30, 20W-40. API Service category DM, DS |
| Engine coolant type |
Cool-Gard Premix Coolant |
| Hydraulic/Transmission fluid type |
JD 303 Special-Purpose Oil |
| Belt pulley oil type |
JD 303 Special-Purpose Oil, SAE 80 |
| Check hydraulic/transmission fluid level |
Every 50 hours |
| Lubricate axle hub bearings |
Every 50 hours |
| Clean battery and check electrolyte level |
Every 50 hours |
| Change engine oil |
Every 250 hours |
| Replace engine oil filter |
Every 250 hours |
| Inspect and adjust generator/fan belt |
Every 250 hours |
| Check belt pulley oil level |
Every 250 hours |
| Clean air cleaner oil cup or dry element |
Every 250 hours |
| Change engine fuel filter |
Every 500 hours |
| Check injection timing |
Every 500 hours |
| Check manual steering gear oil level |
Every 500 hours |
| Replace hydraulic/transmission oil filter |
Every 500 hours |
| Change belt pulley oil |
Every 500 hours |
| Check and adjust engine idling |
Every 500 hours |
| Check and adjust valve clearance |
Every 500 hours |
| Change hydraulic/transmission fluid |
Every 1000 hours |
| Clean and adjust wheel bearings |
Every 1000 hours |
| Clean hydraulic pump valve filter |
Every 1000 hours |
| Replace air cleaner dry element |
Every 1200 hours |
| Flush cooling system and add new coolant |
Every 1200 hours |
| Engine oil filter part number |
T19044 |
| Engine fuel filter part number |
AT31064, AT13379, AR66294 |
| Engine air cleaner part number |
AT20240 (oil bath), AR84228/AE31724 (dry element) |
| Hydraulic/transmission oil filter part number |
AR75603 |
| Hydraulic filter element part number |
AL71020, R27173 |
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| Farm Tractors Technical Specifications |
