Gear Shifting - Volvo Truck
ATO2612F
Pneumatic System
Pneumatic system digunakan untuk menggerakan gearshift actuator, countershaft brake dan clutch cylinder. GCU menerima udara bertekanan dari APM (Air Production Modulator) port 24 atau dari yang lain tergantung versinya.
- Air supply
- Actuator
- Air connection to clutch cylinder through CVU
- Clutch cylinder
- Air connection to countershaft brake
- Countershaft brake cylinder
- Exhaust duct
Pada overdrive gearbox, split gearwheel pada input shaft dan pasangan gearwheel pada countershaft dibalik posisinya dibandingkan dengan direct drive gearbox. Posisi low split dan high split gear juga dibalik.
OD = OverDrive
LS = Low Split
HS = High Split
Power Flow
Direct drive-Gear N1 atau Overdrive-Gear N2
Direct drive-Gear N2 atau Overdrive-Gear N1
Forward Gear
Direct drive : Gear 1 - Low range (A) dan Gear 7 - High range (A) atau
Overdrive : Gear 2- Low range (A) dan Gear 8 - High range (A)
Direct drive : Gear 2 - Low range (A) dan Gear 8- High range (A) atau
Overdrive : Gear 1- Low range (A) dajGear 7- High range (A)
Direct drive : Gear 3 - Low range (A) dan Gear 9- High range (A) atau
Overdrive : Gear 4 - Low range (A) dan Gear 10 - High range (A)
Direct drive : Gear 4 - Low range (A) dan Gear 10 - High range (A) atau
Overdrive : Gear 3 - Low range (A) dan Gear 9 - High range (A)
Direct drive : Gear 5 - Low range (A) dan Gear 11 - High range (A) atau
Overdrive : Gear 6 - Low range (A) dan Gear 12 - High range (A)
Direct drive : Gear 6 - Low range (A) dan Gear 12 - High range (A) atau
Overdrive : Gear 5 - Low range (A) dan Gear 11 - High range (A)
Reverse Gear
Direct drive : Gear R1 - Low range (A) dan Gear R3 - High range (A) atau
Overdrive : Gear R2 - Low range (A) dan Gear R4- High range (A)
Direct drive : Gear R2 - Low range (A) dan Gear R4 - High range (A) atau
Overdrive : Gear R1 - Low range (A) dan Gear R3 - High range (A)
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