Content
The bulldozer
14 February 2008
Bulldozers are used for ripping, banking up soil, pushing scrapers and for levelling and creating slopes.
- A bulldozer banking up soil (rights reserved)
- Lame = blade, Ripper = ripper
For earthworks, bulldozers with a power in excess of 300 HP are used for ripping, banking up soil and pushing scrapers.
Machines of less than 300 HP are considered as support machines and used for levelling and creating slopes.
Some mechanical details
The drive train
The drive train consists of an engine that drives a torque converter that is connected to a planetary gearbox which is followed by the final reducing gears.
Some bulldozers have hydrostatic transmissions, i.e. the hydraulic motors which drive the final controls are connected to an oil supply from a variable flow pump driven by the combustion engine.
- Ripping works (rights reserved)
