Case 621G - Page 372

8-SPECIFICATIONS
621GDrivetrain-4SpeedTransmission
4F/3RProportionalwithElectronicControlModuletorquesensingautoshift/manualshiftandmodulation
Gears
Helicalcut
Gearratios
ForwardReverse
1st4.0123.804
2nd2.1742.061
3rd1.0881.031
4th0.619
Torqueconverterstallratio2.664:1
Rearaxleoscillation
24°total
StandardAxles
FrontRear
DifferentialLimitedsliponfrontandrearaxles
Differentialratio
3.183.18
Planetaryratio6.406.40
Finalaxleratio20.3420.34
Planetaries
Outboard
ServicebrakesHydraulicallyactuated,maintenance-free,multiplewetdiscw/accumulator
toallfourwheels
Parkingbrakes
Spring-appliedhydraulicreleasediscontransmissionoutputshaft
OptionalHDAxles
FrontRear
Differential
Frontlockingandrearopen
Differentialratio
3.183.18
Planetaryratio6.406.40
Finalaxleratio20.3420.34
Planetaries
Outboard
ServicebrakesHydraulicallyactuated,maintenance-free,multiplewetdiscw/accumulator
toallfourwheels
Parkingbrakes
Spring-appliedhydraulicreleasediscontransmissionoutputshaft
TravelspeedsKm/h(mph)
ForwardReverse
1st
6.9km/h(4.3mph)7.3km/h(4.5mph)
2nd
13.5km/h(8.4mph)14.2km/h(8.8mph)
3rd
23.9km/h(14.9mph)25.0km/h(15.6mph)
4th
38.6km/h(24.0mph)
NOTE:travelspeeds@fullenginethrottle.
8-2