| John Deere 990 | VS | All other Farm Tractors |
| Production | |||||
|---|---|---|---|---|---|
| Model Year | 2000 | ||||
| Production Manufacturer | Yanmar | vs | 1.6% Farm Tractors have Yanmar |
||
| Factory | Japan | ||||
| Distributor | John Deere | ||||
| Capacity | |||||
|---|---|---|---|---|---|
| Capacity Fuel |
8.5 gal (61.85 gal lower than average)
|
vs |
70.35 gal
|
||
| Hydraulic system |
5.5 gal (13.92 gal lower than average)
|
vs |
19.42 gal
|
||
| Power Take-off (PTO) | |||||
|---|---|---|---|---|---|
| Rear RPMs |
540 (68.25 lower than average)
|
vs |
608.25
|
||
| Rear PTO | Live (two-stage Clutch) | vs | 1.5% Farm Tractors have live (two-stage clutch) |
||
| Mechanical | |||||
|---|---|---|---|---|---|
| Mechanical Steering | Power | vs | 8.2% Farm Tractors have power |
||
| Chassis | 4x2 2wd | vs | 12.3% Farm Tractors have 4x2 2WD |
||
| Brakes | Wet Disc | vs | 40.8% Farm Tractors have wet disc |
||
| Cab | Two-post Rops. | ||||
| Transmission | |||||
|---|---|---|---|---|---|
| Transmission Type | Partially Synchronized | vs | 8.2% Farm Tractors have partially synchronized |
||
| Transmission Comments | Three Gears (1-3) Plus Reverse In Three Ranges (a-c). Gears May Be Shifting On The Move By Using The Clutch. The Tractor Must Be Stopped To Shift Ranges. | ||||
| Transmission Oil capacity |
22 qts (36.78 qts lower than average)
|
vs |
58.78 qts
|
||
| Transmission Transmission | Collar Shift | ||||
| Transmission Gears |
9 forward (6.13 forward lower than average)
|
vs |
15.13 forward
|
||
| Transmission Speeds | With 14.9-24 Rear Tires. | ||||
| Dimensions | |||||
|---|---|---|---|---|---|
| Wheelbase |
68.9 inches (25.43 inches lower than average)
|
vs |
94.33 inches
|
||
| Length |
123 inches (38.96 inches lower than average)
|
vs |
161.96 inches
|
||
| Front tread | 48.2 Inches [122 Cm] (2wd)53.6 Inches [136 Cm] (4wd) | ||||
| Rear tread |
46.2 inches (2.3 inches lower than average)
|
vs |
48.50 inches
|
||
| Height (ROPS) |
84.2 inches (9.94 inches lower than average)
|
vs |
94.14 inches
|
||
| Height (hood) |
54 inches (11.4 inches lower than average)
|
vs |
65.40 inches
|
||
| Drawbar capacity |
825 lbs (822 lbs higher than average)
|
vs |
3,306 lbs
|
||
| Front axle load |
5513 lbs (5508 lbs higher than average)
|
vs |
5,414 lbs
|
||
| Rear axle load |
5292 lbs (5280 lbs higher than average)
|
vs |
12,710 lbs
|
||
| Hydraulics | |||||
|---|---|---|---|---|---|
| Hydraulics Type | Open Center | ||||
| Pressure |
2262 psi (2260 psi higher than average)
|
vs |
2,737 psi
|
||
| Pump flow |
8.5 gpm (10.96 gpm lower than average)
|
vs |
19.46 gpm
|
||
| Capacity (cu. ft.) |
5.5 gal (13.92 gal lower than average)
|
vs |
19.42 gal
|
||
| Total flow |
13 gpm (11.65 gpm lower than average)
|
vs |
24.65 gpm
|
||
| Steering flow |
4.5 gpm (2.34 gpm lower than average)
|
vs |
6.84 gpm
|
||
| Loader | |||||
|---|---|---|---|---|---|
| Loader Loader type | John Deere 430 | ||||
| Loader Height (to pin) |
101.9 inches (14.8 inches lower than average)
|
vs |
116.70 inches
|
||
| Loader Dump clearance |
78.3 inches (12.68 inches lower than average)
|
vs |
90.98 inches
|
||
| Loader Dump reach |
25.3 inches (4.58 inches lower than average)
|
vs |
29.88 inches
|
||
| Loader Dump angle |
45 (4.06 lower than average)
|
vs |
49.06
|
||
| Loader Lift to full height (at pin) |
1102 lbs (1100 lbs higher than average)
|
vs |
2,412 lbs
|
||
| Loader Lift to full height (at 500mm) |
915 lbs (365.09 lbs lower than average)
|
vs |
1280.09 lbs
|
||
| Loader Bucket width |
61 inches (4.92 inches lower than average)
|
vs |
65.92 inches
|
||
| Loader Reach at ground |
51.2 inches (21.53 inches lower than average)
|
vs |
72.73 inches
|
||
| Loader Breakout force (at pin) |
3285 lbs (3282 lbs higher than average)
|
vs |
3,719 lbs
|
||
| Loader Breakout force (at 500mm) |
2306 lbs (2304 lbs higher than average)
|
vs |
2,362 lbs
|
||
| Loader Raise time to height |
3.9 s (0.43 s lower than average)
|
vs |
4.33 s
|
||
| Loader Bucket dump time |
1.8 s (0.95 s lower than average)
|
vs |
2.75 s
|
||
| Loader Lowering time |
3 s (0.16 s lower than average)
|
vs |
3.16 s
|
||
| Loader Rollback time |
2 s (0.74 s lower than average)
|
vs |
2.74 s
|
||
| Loader Rollback, raised |
64 (3.25 lower than average)
|
vs |
67.25
|
||
| Loader Lift to 1.5m (at pin) |
1943 lbs (1940 lbs higher than average)
|
vs |
3,343 lbs
|
||
| Loader Lift to 1.5m (at 500mm) |
1724 lbs (331.18 lbs higher than average)
|
vs |
1392.82 lbs
|
||
| Rollback at ground |
30 (5.5 higher than average)
|
vs |
24.50
|
||
| Backhoe | |||||
|---|---|---|---|---|---|
| Backhoe Backhoe type | John Deere 8b | ||||
| 3-Point Hitch | |||||
|---|---|---|---|---|---|
| Rear Type |
I (36.36 lower than average)
|
vs | 26.5% Farm Tractors have I |
||
| Rear lift (at 24"/610mm) |
1573 lbs (1567 lbs higher than average)
|
vs |
6,099 lbs
|
||
| Power | |||||
|---|---|---|---|---|---|
| PTO (claimed) |
35 hp (77.68 hp lower than average)
|
vs |
112.68 hp
|
||
| Engine (gross) |
40.4 hp (54.75 hp lower than average)
|
vs |
95.15 hp
|
||
| Engine (net) |
38.5 hp (89.72 hp lower than average)
|
vs |
128.22 hp
|
||
| Electrical | |||||
|---|---|---|---|---|---|
| Ground | Negative | ||||
| Charging system | Alternator | ||||
| Charging amps |
20 (91.12 lower than average)
|
vs |
111.12
|
||
| Tires | |||||
|---|---|---|---|---|---|
| Ag front |
6.5-16 (2WD) (17.6 lower than average)
|
vs | 0.3% Farm Tractors have 6.5-16 (2WD) |
||
| Ag rear |
14.9-24 (9.89 lower than average)
|
vs |
24.79
|
||
| Battery | |||||
|---|---|---|---|---|---|
| Volts |
12 (equals average)
|
vs |
12.00
|
||
| Number |
1 (0.65 lower than average)
|
vs |
1.65
|
||
| Cold-cranking amps |
650 (188.52 lower than average)
|
vs |
838.52
|
||
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