- Automatic transmission
The transmission is particularly smooth and the gear ratios are
optimized. There are no shocks, resulting in an appreciable level of
comfort for the operator. The traction force is optimum under all
The combination of these characteristics enables the loader to
maintain high speed under all conditions, enhances breakout forces
and thus optimizes bucket filling at each cycle.
Daewoo Doosan Dl420a Wheeled Loader Service Parts Catalogue Manual
The transmission has three modes of operation:
• Automatic (automatic shift for all gears)
• Semi-automatic (automatic with a “kick-down” for first gear)
Axles Improved internal oil flow greatly reduces the temperature difference
between the hub and the differential, as well as prevents premature
disc wear due to overheating of the internal hub components.
Limited-slip ZF differential
The front and rear axles are fitted with limited-slip differentials.
This automatically ensures maximum tractive effort and easy driving
over soft and muddy ground. It also reduces the risk of skidding and,
at the same time, prevents excessive tyre wear.
The brake discs integrated into the planetary reduction gears in the
hubs are metal reinforced, ensuring long hours of operation and