In our article, we will show you around the D11N Bulldozer and talk about its specific features and the changes and upgrades made along with many interesting features.
Caterpillar D11N is a bulldozer that appeared in 1987 as an upgrade of the D10 model. The D11N Bulldozer was produced until 1996 and the D11N was replaced by the D11R model.
Improvements with Caterpillar D11N
When Caterpillar upgraded the D10 to the D11N they made many improvements to the Bulldozer; one of which was making the tracks wider, which allowed the D11N to have 6% less ground pressure compared to the D10. Caterpillar also strengthened the chassis and superstructure. This bulldozer also made the front baffle plate into one piece compared to the old D10, and the D11N also used a thicker roller frame tube and base.
Caterpillar D11N Bulldozer Blade
Let’s take a look at the large blade on the front of the Caterpillar D11N, it is an 11U blade that is rated at 45 cubic yards and measures 20’1 inches. Caterpillar also offered a smaller 11S blade that was rated at 33 cubic yards and measured 18’4″.
When you look through the guards on the back of the D11N Bulldozer, you can see the single-shank Ripper, but Caterpillar also offered a multi-shank ripper depending on the customer’s preference, and in 1987 Caterpillar specials first introduced the hydraulic hammer Ripper for the D11N, which is probably one of the best. The coolest attachments offered for this bulldozer were discontinued in the early 1990s because the negative impact of the Ripper’s impact created too much shock and vibration while the Ripper was operating, which caused stress cracking in some areas of the Dozer.
Engine of Caterpillar D11N Bulldozer
The D11N Bulldozer is powered by a Caterpillar D358 D four-stroke twin-turbocharged cascading air diesel engine; you can see right under the hood here, this produces 770 horsepower for the Dozer, this was more powerful than the original D348 used in the D10 model. It was also more fuel efficient, burning 5% less fuel per cubic yard of material.
When you sit behind the steering wheel at the front, these two hand levers you see on your left side of the throttle are the steering clutches and they control each road, there is a gear right in the middle, this is the gear change for the transmission, this is in the neutral position, the D11N has three forward speeds and three reverse speeds. The hand lever you will see on the right controls all functions of the front blade and the hand lever you use.
Before 1993 the total operating weight of a D11N with a single-shank Ripper was 104 tonnes and with an impact Ripper it was 112 tonnes. After 1993 the standard operating weight for a D11N with a single-shank Ripper and an 11U blade was 107 tonnes with a multi-shank ripper.