To withstand the immense thermal loads generated by frequent stopping, retardation, and continuous acceleration, the transmission features an integrated dual-circuit heat exchanger. The system routes automatic transmission fluid (ATF) directly through corrosion-resistant stainless steel cooling blocks, preserving oil integrity even when external ambient temperatures surge. Maintenance, Service Intervals, and Reliability
The baseline physical and operational parameters of the unit include: Specification Number of Gears 6 Forward, 1 Reverse Total Gear Ratio Spread 12.6 (mechanical spread of 5.4) Dry Transmission Weight Approximately 376 kg Gross Assembly Weight Up to 420 kg (including oil/accessories) Maximum Vehicle Weight Permissible up to 42 Metric Tons Oil Capacity ~42 dm³ (liters) Core Engineering and Architecture Hydrodynamic Torque Converter
: Controls transmission fluid temperatures during continuous driving. zf ecolife 6ap1700b
By providing a robust driveline solution, the 6AP1700B helps operators achieve a lower . Its ability to handle Euro V and Euro VI compatible engines makes it a staple for modern, eco-conscious transit fleets. The transmission's high-torque tolerance allows it to be used in articulated buses and coaches traveling through challenging, hilly topographies where power and reliability are critical. EcoLife 2 - ZF
| Gear | Ratio | | :--- | :--- | | 1st | 3.36:1 | | 2nd | 1.91:1 | | 3rd | 1.42:1 | | 4th | 1.00:1 | | 5th | 0.72:1 | | 6th | 0.62:1 | | Reverse | 4.23:1 | To withstand the immense thermal loads generated by
: Genuine replacement units and components like the Electronic Control Unit (ECU) can be sourced through the ZF Aftermarket Catalog .
The planetary ratios are strategically spaced to keep the heavy-duty commercial engine operating within its optimal, lowest-RPM fuel-efficiency island: By providing a robust driveline solution, the 6AP1700B
Equipped with a torsional damper to enable smooth, seamless acceleration and fast gearshifts without tractive force interruption. Maintenance and Service