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Siirry sivupalkkiinSiirry alaosaanVolvo T 21-25/BM 24-25

Volvo bought Bolinder-Munktell in 1950. After that, tractors with essentially the same basic structure were manufactured both as petrol engine red Volvos and as glow-plug or diesel engine green BMs. The 20-series Volvos were, among other things, comparable in powertrain to the glow-plug engine BM 10.
The 20-series Volvos were petrol-powered, except for the most powerful model T23, which was gasoline-powered only. The T22 and T23 had larger wheels than the T21, and the hydraulic lifting device was initially an optional extra, later becoming standard. The hydraulics were independent of the clutch.
In 1952, the improved Volvo T24 and T25, as well as the green parallel models BM 24 and 25, were introduced. So now even the BMs had switched from glow-plug engines to petrol engines. The engines were increased to 2.2 liters. The wheels were larger than before, and the wheelbase was extended to 177 cm.
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| Model | Volvo T21 | Volvo T22 | Volvo T23 | Volvo T24 BM 24 | Volvo T25 BM 25 |
|---|---|---|---|---|---|
| Imported to Finland | Yes | Yes | Yes | Yes | Yes |
| Years | 1946-52 | 1947-52 | 1950-52 | 1952-59 | 1952-59 |
| Engine model | C4F | C4F | C4B | CF 22 | CB 22 |
| Cyl/Turbo/Intercooler | 4 | 4 | 4 | 4 | 4 |
| Displacement | 1980 cm³ | 1980 cm³ | 1980 cm³ | 2155 cm³ | 2155 cm³ |
| Bore x stroke | 84,14×90 mm | 84,14×90 mm | 84,14×90 mm | 87,31×90 mm | 87,31×90 mm |
| Rated power | 22/1500 hp DIN/rpm | 22,5/1800 hp DIN/rpm | 28,5/1800 hp DIN/rpm | 27,5/2000 hp DIN/rpm | 31/2000 hp DIN/rpm |
| Gears | 5+1 | 5+1 | 5+1 | 5+1 | 5+1 |
| Speeds in km/h | 3,7-18,4 | 4,2-21,0 | 4,2-21,0 | 5,2-26,0 | 5,2-26,0 |
| PTO speeds | 540 | 525 | 525 | 540 | 540 |
| Brakes | drum brakes | drum brakes | drum brakes | drum brakes | drum brakes |
| Steering | mech. | mech. | mech. | mech. | mech. |
| Turning circle m 2WD | 6 | 6 | 6 | 6 | 6 |
| Front tyres 2WD | 4.00-16 | 5.00-15 | 5.00-15 | 5.50-16 | 5.50-16 |
| Rear tyres 2WD | 9-24 | 10-28 | 10-28 | 12,4/11-28 | 12,4/11-28 |
| Weight 2WD | (1255) kg | (1255) kg | (1260) kg | (1570) kg | (1570) kg |
| Height with cab | (150) cm | (164) cm | (163) cm | (165) cm | (165) cm |
| Length (2WD/4WD) | 251 cm | 251 cm | 251 cm | 275 cm | 275 cm |
| Wheelbase (2WD/4WD) | 170 cm | 170 cm | 170 cm | 177 cm | 177 cm |
| Fuel tank | 45+4 bens. l | 45+4 bens. l | 45+4 l | 45+4 bens. l | 45+4 l |
| Hydr. flow l/min | - | 13 l/min | 13 l/min | 24 l/min | 24 l/min |
| Hydraulic pressure | - | 90 bar | 90 bar | 110 bar | 110 bar |
| Lift controls | - | -/mech. | mech. | mech. | mech. |
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