I-Shift Transmission - Volvo Truck

Pada Volvo FMX yang beredar di Indonesia, sebagian menggunakan Automated mechanical gearbox ATO2612F atau juga dikenal dengan I-Shift Transmission.

• A  : Automated
• T  : Transmission
• O  : Overdrive
• 26 : Maximum torque (2600 Nm) yang dapat diterima oleh input shaft transmisi
• 12 : Number of forward gears (jumlah gigi maju)

Note :
4 reverse gears (gigi mundur)
Gearbox (I-Shift) generations E and F

Gearbox memiliki susunan tiga gear utama, split gear (high - low) dan range gear (high - low) yang terintegrasi. Split dan range gear ter-synchronized secara mekanis sedangkan gear utama ter-synchronized secara electronic dengan menggunakan engine brake dan countershaft brake untuk mengatur kecepatan putaran input shaft. Berikut ini adalah component yang berbeda dengan gearbox generasi E:

• Countershaft brake
• Clutch housing (prepared for crawler gear housing)
• Countershaft (adjusted for countershaft brake)
• Software packages

1. TECU
2. Solenoid valve block
3. Air supply, from chassis air supply
4. Air distribution to CVU
5. Gear shifting mechanism
6. Connector for vehicle electronics
7. Connector for CVU

1. Countershaft brake
2. Clutch cylinder
3. CVU (Clutch Valve Unit)
4. Clutch housing
5. Input shaft
6. Countershaft
7. Main shaft
8. Oil pump
9. Reverse shaft
10. Main housing
11. Oil filter housing
12. Range gear housing
13. Shift fork, range gear
14. Output shaft including range gear
15. GCU (Gearbox Control Unit)
16. Cable harness

1. TECU (Transmission Electronic Control Unit)
2. Connector, vehicle interface
3. Connector, output shaft speed sensor
4. Connector, TECU
5. Connector, CVU
6. Connector, clutch cylinder position sensor

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